CONTRIBUTION AGREEMENT



         This  CONTRIBUTION  AGREEMENT,   dated  as  of  _________,   1997  (the
"Agreement"),  is entered into by and among Magellan  Health  Services,  Inc., a
Delaware corporation ("Magellan"), Crescent [Opportunity Limited Partnership], a
[Delaware]  limited  partnership or [Crescent Corp.]  ("Crescent"),  and Charter
Behavioral  Health Systems,  LLC, formed under the laws of the State of Delaware
("OpCo").

         WHEREAS,   Magellan  and   Crescent   Real  Estate   Equities   Limited
Partnership, a Delaware limited partnership ("CREELP"), have entered into a Real
Estate  Purchase and Sale  Agreement  dated  January 29, 1997, as amended by the
First  Amendment to Real Estate Purchase and Sale Agreement dated as of February
28, 1997 ("Real Estate Purchase and Sale Agreement"), pursuant to which Magellan
has agreed to cause certain of its subsidiaries  listed on Exhibit A to the Real
Estate  Purchase and Sale Agreement to sell to CREELP,  and CREELP has agreed to
purchase  from  those  subsidiaries,  certain  of  the  real  property,  related
improvements, furniture, equipment and fixtures owned by those subsidiaries (the
"Facilities")  and used in the  operation of Magellan's  acute care  psychiatric
hospitals;

         WHEREAS,  Magellan and Crescent  desire to operate and maintain OpCo to
(i)  operate  the  Facilities  and  certain  leased  facilities  (together,  the
"Hospitals");  and (ii)  engage in the  business  of  hospital-based  behavioral
healthcare using OpCo as the operating entity;

         WHEREAS,  it is a  condition  to the  consummation  of the Real  Estate
Purchase and Sale Agreement and the other  Transaction  Documents (as defined in
the  Real  Estate   Purchase  and  Sale   Agreement)  that  Magellan  cause  its
subsidiaries listed on Exhibit A to this Agreement (each a "Magellan Subsidiary"
and together the "Magellan  Subsidiaries") to contribute certain assets to OpCo,
and that Crescent  contribute certain assets to OpCo, in exchange for all of the
interests in OpCo (the "Contribution");

         WHEREAS,  upon  closing  of  the  transactions   contemplated  by  this
Agreement and the Real Estate Purchase and Sale Agreement, (i) OpCo and Magellan
will enter into that certain Franchise Agreement,  attached as Exhibit B to this
Agreement (the  "Franchise  Agreement")  and will cause each OpCo Subsidiary (as
hereafter  defined) to enter into that certain Franchise  Agreement  attached as
Exhibit B-1 (the "Subsidiary  Franchise  Agreement" and,  collectively  with the
Master  Franchise  Agreement,  the  "Franchise  Agreement"),  (ii)  Magellan and
Crescent  will enter into that certain  Operating  Agreement of OpCo attached as
Exhibit C to this  Agreement  (the  "OpCo  LLC  Agreement"),  and  (iii)  unless
financing is provided by a financial




                                      - 1 -





institution,  OpCo and  Magellan  will enter into that  certain  Bridge Loan and
Security  Agreement and  Promissory  Note attached as Exhibits D and D-1 to this
Agreement (the "Bridge Loan Agreement");

         WHEREAS,  in  connection  therewith,  Crescent  [Opportunity  Corp.,] a
[Delaware] corporation ("Crescent Corp.") and Magellan also will enter into that
certain Warrant Purchase Agreement, attached as Exhibit E to this Agreement (the
"Warrant Agreement");

                               A G R E E M E N T:

         In consideration  of the mutual  covenants  contained in this Agreement
the parties agree as follows:


                                   SECTION 1.

                                   DEFINITIONS

    1.1   Definitions. As used in this Agreement, the following terms shall have
          the following meanings unless the context otherwise requires:

         "Business"  shall mean the  business of the  operation of an acute care
psychiatric hospital,  part of an acute care general hospital operating an acute
care psychiatric unit, a behavioral  healthcare  residential treatment center, a
part of a facility  operating  a  behavioral  healthcare  residential  treatment
center, or other similar facility providing 24-hour behavioral  healthcare,  and
the delivery of behavioral  healthcare  from such facility and other  affiliated
facilities;  such behavioral  healthcare to include  inpatient  hospitalization,
partial  hospitalization  programs,  outpatient  therapy,  intensive  outpatient
therapy, ambulatory detoxification, behavioral modification programs and related
services.

         "Contribution  Date" shall mean the moment in time immediately prior to
the Closing Date.

    1.2   Other Defined Terms.  Capitalized  terms not otherwise defined in this
          Agreement  shall  have the  meanings  given  them in the  Real  Estate
          Purchase and Sale Agreement.



                                      - 2 -





                                   SECTION 2.

                                  CONTRIBUTION

     2.1  Contribution of Assets  Relating to the Hospitals by Magellan.  On the
          Contribution  Date,  on the terms and  subject to the  conditions  set
          forth in this Agreement,  and in  consideration  for a 50% interest in
          OpCo,  Magellan will cause the relevant Magellan Subsidiary to (either
          directly  or  through  Magellan)  contribute  or  assign  to OpCo or a
          relevant,  wholly owned subsidiary of OpCo (an "OpCo  Subsidiary") all
          of  such  Magellan  Subsidiary's  right,  title  and  interest  in the
          following assets (the "Contributed Assets") related to the Hospitals:

          (a)  All patient medical records;

          (b)  All licenses and permits used in the operation of the  Hospitals,
               to the extent that such licenses and permits are transferable;

          (c)  All of the leasehold interests held by any Magellan Subsidiary as
               lessee, in real or personal property  including,  but not limited
               to:

               (i)  the  leasehold  interests  in those  Hospitals  set forth on
                    Schedule 2.1(c)(i) and

               (ii) the leasehold  interests in the medical office buildings set
                    forth on Schedule 2.1(c)(ii);

          (d)  All  of  the   furniture,   fixtures   equipment   and  leasehold
               improvements  owned by  Magellan  or a  Magellan  Subsidiary  and
               located  at a  Hospital  set  forth on  Schedule  2.1(c)(i)  or a
               medical office building set forth on Schedule 2.1(c)(ii);

          (e)  All contracts with physicians and other healthcare professionals;

          (f)  All  operating,   service,   maintenance   and  loaned   employee
               contracts;

          (g)  All payor  contracts  including but not limited to contracts with
               employers,  health maintenance organizations,  preferred provider
               organizations,  managed care companies,  and insurance  companies
               but  excluding all national and regional  contracts  with vendors
               and  payors,  the  benefits  of which will be provided to OpCo by
               Magellan pursuant to the Franchise Agreement;

          (h)  The employment contract between Magellan and John M. DeStefanis;

          (i)  The stock of Charter Medical Executive Corporation ("CMEC"); and

          (j)  Employment files and records.

     2.2  Excluded Assets.  Magellan and Crescent expressly understand and agree
          that  neither  Magellan nor any  Magellan  Subsidiary  is conveying or
          contributing  to OpCo or any OpCo  Subsidiary  pursuant to Section 2.1
          any of the following assets,  rights or properties or any assets which
          are not used in the  conduct of the  business  of the  Hospitals  (the
          "Excluded Assets"):

                                      - 3 -






          (a)  Supplies and inventory relating to the Hospitals;

          (b)  Notes receivable relating to the Hospitals;

          (c)  Prepaid assets relating to the Hospitals;

          (d)  Prepaid expenses relating to the Hospitals;

          (e)  Lease deposits paid by either Magellan or any Magellan Subsidiary
               as tenant in any lease relating to the Hospitals;

          (f)  Utility deposits relating to the Hospitals;

          (g)  Cash held in escrow accounts relating to the Hospitals;

          (h)  The capital stock of any subsidiary of Magellan (other than CMEC)
               or  Magellan's  interest in any joint  venture  including but not
               limited to the joint ventures set forth on Schedule 2.2(h);

          (i)  Corporate seals,  minute books,  stock ledgers or other books and
               records  pertaining  to the  organization,  issuance of stock and
               capitalization of the Magellan Subsidiaries;

          (j)  All rights,  properties, and assets used by Magellan primarily in
               a business other than the Business and not  reasonably  necessary
               for the operation of the Business;

          (k)  All  rights,   properties,   and  assets  that  shall  have  been
               transferred or disposed of by Magellan or any of its subsidiaries
               prior to the date of this  Agreement  or prior to  Closing in the
               ordinary course of business;

          (l)  Trademarks, trade names (including the "Charter" name), corporate
               names and logos owned by Magellan and any of its subsidiaries;

          (m)  All  real  estate,  furniture,   fixtures  and  equipment  to  be
               transferred to Crescent  under the Real Estate  Purchase and Sale
               Agreement;

          (n)  Any  deferred tax asset of a Magellan  Subsidiary  at the Closing
               Date;

          (o)  The  Cocoon  System  (as  defined  in  the  Franchise  Agreement)
               including but not limited to all treatment protocols,  written or
               unwritten,  and future  improvements and  modifications,  whether
               made  by  Magellan,  a  Magellan  Subsidiary,  OpCo  or  an  OpCo
               Franchisee as defined in the Franchise Agreement;

          (p)  Policy and procedure  manuals,  written or unwritten,  and future
               improvements and  modifications to such manuals,  whether made by
               Magellan, a Magellan Subsidiary, OpCo or an OpCo Subsidiary;

                                      - 4 -






          (q)  All cash, cash equivalents,  short-term  investments,  marketable
               securities, and accounts receivable of Magellan and each Magellan
               Subsidiary;

          (r)  Patient related software systems;

          (s)  TRIMS system;

          (t)  Purchasing/ordering systems;

          (u)  Accounting systems;

          (v)  Call center system;

          (w)  Intellectual property rights;

          (x)  Tax refunds,  cost report adjustments and settlements relating to
               periods  prior to the  Closing  Date and  liabilities  or  assets
               related to  depreciation  recapture  relating to periods prior to
               the Closing Date;

          (y)  Disproportionate Share Payments; and

          (z)  Assets (including  business records) required in order to provide
               the services to be provided by Magellan pursuant to the Franchise
               Agreement.

     2.3  Assumed  Obligations.  Magellan and Crescent expressly  understand and
          agree that all of the  debts,  obligations,  duties  and  liabilities,
          liquidated  or  unliquidated,  contingent  or  fixed,  relating  to or
          arising out of the operation of the Hospitals and the business of OpCo
          after the Closing (as well as those in subsections  (c) and (d) below)
          but  excluding  each and  every  liability  and  obligation  for which
          Magellan  has agreed to indemnify  OpCo  pursuant to Section 8 of this
          Agreement (the "Assumed  Obligations")  shall be assumed by OpCo as of
          the  Contribution  Date  regardless  of whether such  liabilities  are
          accrued on the books of  Magellan or a Magellan  Subsidiary,  (or OpCo
          shall otherwise be responsible for such debts, liabilities, duties and
          liabilities), including, without limitation, the following:

          (a)  All such liabilities and obligations  relating to the Contributed
               Assets;

          (b)  All such  liabilities and  obligations  relating to the Purchased
               Assets (as hereafter defined);

          (c)  All  liabilities  and  obligations  relating to paid days off and
               accrued vacation arising prior to the Contribution Date;


                                      - 6 -





          (d)  All  liabilities  and  obligations  relating to sick days arising
               prior to the Contribution Date;

          (e)  All such  liabilities  and  obligations  (excluding  any  payment
               obligations)  arising  from the Consent  Decrees and  Settlements
               listed on Schedule  6.1(p) to the Real Estate  Purchase  and Sale
               Agreement;

          (f)  All  such   liabilities  and  obligations   arising  from  OpCo's
               participation in the contracts excluded from Section 2.1(f); and

          (g)  All  such   liabilities  and  obligations   related  to  software
               sublicensed to OpCo pursuant to the Franchise Agreement which are
               licensed from third parties.

     2.4  Excluded  Liabilities.  Any  and  all  liabilities  of  Magellan  or a
          Magellan Subsidiary arising prior to the Closing,  except as set forth
          in Section 2.3(c) and (d) (the "Excluded  Liabilities"),  shall not be
          assumed by OpCo and shall remain the  liabilities  and  obligations of
          Magellan  or the  relevant  Magellan  Subsidiary  except to the extent
          covered by  insurance,  subject to Section 8.1.  Without  limiting the
          effect of the foregoing,  the term "Excluded Liabilities" includes the
          following  liabilities  which  arose  or were  incurred  prior  to the
          Closing:

          (a)  Any  liability or  obligation  in respect of any federal,  state,
               local,   foreign  or  other  tax,   levy,   assessment  or  other
               governmental  charge,  including,  without  limitation,   income,
               business,  occupation,  franchise,  property,  payroll,  personal
               property, sales, transfer,  employment,  occupancy,  franchise or
               withholding   taxes,   and  any   premium,   including,   without
               limitation,  interest,  penalties  and  additions  in  connection
               therewith;

          (b)  Any liability  (to the extent not covered by  insurance)  arising
               from any  injury  to or  death  of any  person  or  damage  to or
               destruction of any property, whether based on negligence,  breach
               of warranty, strict liability,  enterprise liability or any other
               legal  or  equitable  theory,   arising  from  the  ownership  or
               operation of the Hospitals or the services  performed by Magellan
               or any of its subsidiaries prior to the Closing;

          (c)  The charges and taxes which  Magellan  has agreed to pay pursuant
               to Section 9.1 of this Agreement;

          (d)  Adjustments or refunds of payments required by Medicare, Medicaid
               or  any  other  payor  as a  result  of  payments  prior  to  the
               Contribution Date; and

          (e)  Fines  or  penalties  assessed  and  arising  out  of  activities
               occurring prior to the Contribution Date.

     2.5  Contribution  of Cash by Crescent.  On the  Contribution  Date, on the
          terms and subject to the conditions set forth in this Agreement and in
          consideration for a 50% interest in

                                      - 7 -





          OpCo,  Crescent  shall  contribute  to OpCo cash in the amount of $5.0
          million (the "Crescent Contribution"),  which is equal to the purchase
          price of the Purchased Assets (as defined below).


                                   SECTION 3.

                       PURCHASE OF CERTAIN ASSETS BY OPCO

     3.1  Asset Purchase.  On the Closing Date, OpCo shall purchase from Charter
          Medical  Information Systems ("CMIS") the assets of CMIS listed on the
          computer  printout (the "Purchased  Assets")  delivered by Magellan to
          Crescent on the date hereof,  which  computer  printout is  separately
          bound.

     3.2  Purchase of Working Capital.  On the Closing Date, OpCo shall purchase
          (with  payment to be made within two business  days of purchase)  from
          the Magellan  Subsidiaries  the following assets (the "Working Capital
          Assets") relating to or used in the Hospitals and as the same exist on
          the Closing Date:

          (a)  Supplies and inventory relating to the Hospitals;

          (b)  Notes receivable relating to the Hospitals;

          (c)  Prepaid assets relating to the Hospitals;

          (d)  Prepaid expenses relating to the Hospitals;

          (e)  Lease deposits paid by either Magellan or any Magellan Subsidiary
               as tenant in any lease relating to the Hospitals; and

          (f)  Utility deposits relating to the Hospitals.

     3.3  Purchase Price. The aggregate  purchase price for the Purchased Assets
          is $5.0 million,  and for the Working  Capital  Assets is $8.0 million
          (in the aggregate,  the "Purchase  Price").  On the Closing Date, OpCo
          shall pay to Magellan or its designated  subsidiary cash equal to $5.0
          million, with payment for the Working Capital Assets to be made within
          two  business  days of the  Closing  Date  from  the  proceeds  of the
          financing contemplated by Section 7.4.

     3.4  Post-Closing  Adjustment.  Within  sixty (60) days  after the  Closing
          Date,  Magellan  shall deliver to OpCo a statement  (the  "Statement")
          setting forth the net book value of the Working  Capital  Assets as of
          the Closing Date,  together with appropriate  supporting  information.
          The net book value of the Working  Capital  Assets shall be calculated
          from the  books and  records  of  Magellan,  in  accordance  with past
          practice.  OpCo shall have thirty (30) days to deliver to Magellan any
          objections ("Objections") it has to the Statement. If OpCo does

                                     - 8 -





          not submit any such  Objections,  the Statement shall become final. If
          OpCo does deliver any Objections, Magellan and OpCo shall negotiate in
          good faith to resolve the Objections as promptly as practical.  In the
          event  Magellan and OpCo are unable to resolve the  Objections  within
          thirty (30) days after such Objections are delivered to Magellan,  the
          matter shall be referred to Arthur  Andersen LLP for final  resolution
          of the Objections, which resolution shall be binding upon the parties.
          Arthur  Andersen  LLP shall  resolve  the  Objections  as  promptly as
          practical,  but in any event within  forty-five  (45) days.  If at any
          time the  Objections  to the  Statement are resolved in any manner set
          forth above, the Statement shall become final (the "Final Statement").
          If the Final Statement shows that the amount of Working Capital Assets
          as of the Closing Date are less than $8.0 million (the difference, the
          "Shortfall"),  Magellan  shall  promptly  pay OpCo the  amount  of the
          Shortfall.  If the Final  Statement  shows  that the  Working  Capital
          Assets as of the  Closing  Date are  greater  than $8.0  million  (the
          "Surplus"),  OpCo  shall  promptly  pay  Magellan  the  amount  of the
          Surplus.


                                   SECTION 4.

                            CONSIDERATION AND CLOSING

     4.1  Amount  and  Form  of  Consideration.  On  the  Closing  Date  (i)  in
          consideration   of  Magellan's   transfer  and   contribution  of  the
          Contributed  Assets to OpCo,  OpCo  shall  deliver to  Magellan  fifty
          percent (50%) of the issued and outstanding  capital equity  interests
          in OpCo  (the  "Magellan  Interest"),  and  (ii) in  consideration  of
          Crescent's  transfer and contribution of the Crescent  Contribution to
          OpCo, OpCo shall deliver to Crescent fifty percent (50%) of the issued
          and  outstanding  capital  equity  interests  in OpCo  (the  "Crescent
          Interest").

     4.2  The Closing.

          (a)  The Contribution  shall occur on the date, at the time and place,
               and  subject  to the  conditions  set  forth in the  Real  Estate
               Purchase and Sale Agreement and herein.

          (b)  On the  Closing  Date,  Magellan,  Crescent,  OpCo and each  OpCo
               Subsidiary  (as   applicable)   shall  execute  and  deliver  the
               following documents:

               (i)  the OpCo LLC Agreement;

               (ii) the Franchise Agreement;

               (iii)subject to Section  7.1(t) of the Real Estate  Purchase  and
                    Sale Agreement, the Bridge Loan Agreement;

               (iv) the Warrant Agreement;


                                      - 9 -





               (v)  subject to obtaining any required  consent,  assignments  of
                    the contracts and leases included in the Contributed Assets,
                    the Purchased Assets and the Working Capital Assets; and

               (vi) such other instruments and documents,  in form and substance
                    reasonably  acceptable to Magellan and  Crescent,  as may be
                    necessary   to  effect  the  closing  of  the   transactions
                    contemplated   by  this   Agreement   or  to  evidence   the
                    Contribution.

          (c)  On the Closing Date,  Magellan  shall execute and deliver to OpCo
               the following:

               (i)  Assignments, bills of sale or other documents or instruments
                    of transfer to transfer to OpCo all tangible and  intangible
                    personal  property included in the Contributed  Assets,  the
                    Purchased  Assets  and the  Working  Capital  Assets  (which
                    documents shall include a general  warranty to title of such
                    assets  except for those assets which are leased,  purchased
                    on  an  installment   basis  or  encumbered  by  an  Assumed
                    Obligation);

               (ii) Such  instruments  of assumption  and other  instruments  or
                    documents as may be necessary to effect OpCo's assumption of
                    the Assumed Obligations; and

               (iii)Such other  instruments  or documents as may be necessary to
                    effect the closing of the transactions  contemplated by this
                    Agreement.

          (d)  At the closing,  Crescent shall deliver by wire  transfer,  to an
               account number  designated by OpCo, the Crescent  Contribution in
               immediately available funds.


                                   SECTION 5.

                         REPRESENTATIONS AND WARRANTIES

     5.1  Representations  and Warranties of Magellan.  Magellan  represents and
          warrants to OpCo, as of the date hereof as follows:

          (a)  Organization  and Power.  Magellan and the Magellan  Subsidiaries
               are corporations or limited  liability  companies duly organized,
               validly  existing  and in good  standing  under the laws of their
               respective  states of incorporation or formation,  with power and
               authority to conduct the businesses in which they are engaged, to
               lease and own the properties leased or owned by them and to enter
               into and perform their obligations under this Agreement.  Each of
               Magellan  and  the  Magellan  Subsidiaries  is  qualified  to  do
               business  and is in good  standing  as a foreign  corporation  or
               limited liability company in each jurisdiction where each of them
               is required to be so  qualified,  except  where the failure to so
               qualify would not have a material adverse effect on a Hospital or
               on the business of the Hospitals taken as whole.


                                     - 10 -





          (b)  Authorization.  The execution  and delivery of this  Agreement by
               Magellan  and  the  Magellan  Subsidiaries,  the  performance  by
               Magellan and the Magellan  Subsidiaries of all obligations  under
               this  Agreement  and the sale  and  delivery  of the  Contributed
               Assets,  the Purchased Assets and the Working Capital Assets have
               been duly  authorized  by all necessary  corporate  action on the
               part of Magellan and the Magellan  Subsidiaries.  This  Agreement
               has been duly executed and delivered by Magellan and the Magellan
               Subsidiaries  and  constitutes  the  legal,   valid  and  binding
               obligation of each of them,  enforceable against each of Magellan
               and the  Magellan  Subsidiaries  in  accordance  with its  terms,
               except  as   enforceability   may  be  limited   by   bankruptcy,
               insolvency,  reorganization or similar laws affecting  creditor's
               rights generally.

          (c)  No Violation.  The  execution  and delivery of this  Agreement by
               Magellan and the Magellan  Subsidiaries,  and the consummation by
               Magellan  and  the  Magellan  Subsidiaries  of  the  transactions
               contemplated  in this  Agreement will not conflict with or result
               in the breach or violation of any of the terms or conditions  of,
               or  constitute  (or with  notice  or lapse of time or both  would
               constitute) a default under,  (i) the  Certificate or Articles of
               Incorporation  or Bylaws of Magellan or any Magellan  Subsidiary,
               (ii)  except  as set  forth  on  Schedule  5.1(c),  any  material
               instrument,  contract or other agreement to which Magellan or any
               Magellan  Subsidiary  is a  party  or by  which  Magellan  or any
               Magellan  Subsidiary  is bound,  (iii) any material  provision of
               law,  statute,  rule or regulation  of any court or  governmental
               authority to which Magellan or any Magellan Subsidiary is subject
               (assuming  applicable  approvals and consents in Schedule  5.1(d)
               are  obtained),  or (iv) except as set forth on Schedule  5.1(c),
               any  judgment,  decree,  franchise,   order,  license  or  permit
               applicable to Magellan or any Magellan  Subsidiary,  except where
               such  conflict,  breach,  violation  or default  would not have a
               material  adverse  effect on a Hospital or on the business of the
               Hospitals taken as a whole.

          (d)  Consents.  Except as set forth in  Schedule  5.1(d),  no material
               consent,  approval,  license or authorization of any third party,
               governmental  agency,  commission,  board or public  authority is
               required  in  connection   with  the   execution,   delivery  and
               performance  of  this  Agreement  by  Magellan  or  any  Magellan
               subsidiary.

          (e)  Insurance.  A complete  and  accurate  schedule of all  insurance
               policies (including a statement of policy limits and deductibles)
               held by Magellan  and the Magellan  Subsidiaries  relating to the
               Hospitals  or the  Business  now  in  force,  including,  without
               limitation,  malpractice,  public liability,  property damage and
               workers  compensation or other coverage,  has been made available
               to  Crescent.  All  insurance  policies  remain in full force and
               effect  except  where  such  failure  to remain in full force and
               effect will not have a material  adverse  effect on a Hospital or
               on the business of the Hospitals taken as a whole.

          (f)  Litigation.  Except as set forth in Schedule 5.1(f), there are no
               lawsuits,   proceedings,   actions,   arbitrations,   claims   or
               governmental investigations, inquiries or proceedings pending or,
               to the knowledge of Magellan, threatened, against Magellan or any
               Magellan Subsidiary seeking damages for an amount in excess of $1
               million, and there is no action, suit or proceeding by any person
               or agency  pending or, to the  knowledge of Magellan,  threatened
               which  questions  the  legality or  validity of the  transactions
               contemplated hereby.

                                     - 11 -






          (g)  Licenses,  Accreditation and Third-Party Payors. Magellan and the
               Magellan Subsidiaries hold all licenses, permits,  registrations,
               approvals,  certificates,  contracts,  consents,  accreditations,
               approvals and franchises  ("Licenses  and Permits")  necessary to
               own or lease the  Contributed  Assets and to conduct  and operate
               the   Hospitals  in  the  manner   presently   operated  and  for
               participation   in  the  Medicare   and  Medicaid   reimbursement
               programs,    including,   without   limitation,   all   licenses,
               certificates  of need and permits  required by the state in which
               they operate and by all other  appropriate  health care  facility
               licensing agencies,  federal, state, county or local governmental
               authorities and regulatory agencies,  except where the failure to
               hold such Licenses and Permits would not have a material  adverse
               effect on a Hospital or on the business of the Hospitals taken as
               a whole.

          (h)  The Business.  Upon transfer to OpCo of the  Contributed  Assets,
               the  Purchased  Assets  and  the  Working  Capital  Assets,   and
               consummation  of  the  transactions  contemplated  by  the  other
               Transactional  Documents,  (i) OpCo  will  have or,  through  the
               Franchise  Agreement,  will  have  access  to  all  tangible  and
               intangible  assets  and all  personnel  reasonably  necessary  to
               conduct a  business  that is  substantially  the same as and that
               operates in  accordance  with the same  standards of operation as
               the business of the Hospitals prior to the Closing, and (ii) OpCo
               will have the means to provide the services  specified in Section
               7.9.

          (i)  Contracts. Schedule 5.1(i) contains a listing of all contracts or
               series of related contracts which are material to the business of
               the Hospitals, taken as a whole ("Material Contracts"), including
               all amendments, modifications and side letters thereto, currently
               in  existence.  With respect to each Material  Contract,  neither
               Magellan  nor any  Magellan  Subsidiary  has received a notice of
               termination,  has sent a notice of termination, is in default, or
               has any knowledge that any other party to such Material Contracts
               is in default thereunder.

          (j)  No Other Owned Hospitals. Except as described on Schedule 5.1(j),
               no Magellan  Subsidiary  owns or operates any Hospital other than
               the  Hospitals   operated   using  the  assets  which  are  being
               contributed or sold pursuant to this Agreement.

          (k)  Financial Statements. All books and records relating to operating
               income and expenses of the Hospitals  made available to CREELP or
               Crescent  by  Magellan  were and  shall be  those  maintained  by
               Magellan  in  regard to the  Hospitals  in the  normal  course of
               business. The audited Financial Statements as of and for the year
               ended  September  30,  1996  (the  "1996  Financial  Statements")
               furnished  by  Magellan  to  CREELP  as  a  part  of   Magellan's
               Deliveries  (as  defined  in the Real  Estate  Purchase  and Sale
               Agreement)  have been  prepared  from the books  and  records  of
               Magellan in the ordinary course of business and present fairly in
               all material  respects the results of  operations of Magellan for
               the periods then ended and the financial condition of Magellan as
               of the date of the 1996 Financial Statements.

          (l)  No Material  Adverse  Change.  Since the date of Magellan's  1996
               Financial  Statements,  there has been no material adverse change
               in the business or results of operations of

                                     - 12 -





               Magellan  and the Magellan  Subsidiaries  taken as a whole or the
               business of the Hospitals taken as a whole.

          (m)  SEC Reports.  The  periodic  reports  filed by Magellan  with the
               Securities  and Exchange  Commission  with respect to  Magellan's
               immediately  preceding fiscal year and any interim periods in its
               current fiscal year did not as of their  respective dates contain
               any untrue  statements  of a  material  fact or omit to state any
               material fact required to be stated  therein or necessary to make
               the statements  therein,  in the light of the circumstances under
               which they were made, not misleading.

          (n)  Compliance  With Laws.  Magellan  has  delivered  to  Crescent or
               CREELP a draft dated __________,  1997 ("Proxy Statement") of its
               proxy  statement  to  shareholders  for  its  Annual  Meeting  of
               Shareholders  at which,  among  other  matters,  shareholders  of
               Magellan will consider and vote on the transactions which are the
               subject of the Transaction Documents.  Except as described in the
               Proxy  Statement,  or in documents  filed with the Securities and
               Exchange  Commission  pursuant to applicable law, Magellan is not
               aware of any  material  risk that  Magellan is, in the conduct of
               the   Business   prior  to  the   closing  of  the   transactions
               contemplated by the  Transaction  Documents or that OpCo will be,
               in  the  conduct  of  the  Business  after  the  closing  of  the
               transactions   contemplated  by  the  Transaction  Documents,  in
               violation of any applicable federal law specifically  designed to
               regulate the  healthcare  industry,  which  violation will have a
               material adverse effect on Magellan or OpCo.

     5.2  Representations and Warranties of Crescent. Crescent hereby represents
          and warrants to OpCo as follows:

          (a)  Authorizations, etc. The execution and delivery of this Agreement
               by Crescent and the consummation of the transactions contemplated
               hereby have been duly  authorized by all necessary  action on the
               part of Crescent,  including its General Partner.  This Agreement
               has been duly executed and delivered by Crescent and  constitutes
               the valid and binding obligation of Crescent, enforceable against
               Crescent in accordance with its terms,  except as  enforceability
               may be  limited  by  bankruptcy,  insolvency,  reorganization  or
               similar laws of affecting creditor's rights generally.

          (b)  No  Violation.   Neither  the  execution  and  delivery  of  this
               Agreement,  nor the  consummation by Crescent of the transactions
               contemplated hereby will conflict with or result in the breach or
               violation of any of the terms or conditions of, or constitute (or
               with notice or lapse of time or both would  constitute) a default
               under, (i)  organizational  documents,  including the Partnership
               Agreement of Crescent, (ii) any material instrument,  contract or
               other agreement to which Crescent is a party or by which Crescent
               is bound, (iii) any material  provision of law, statute,  rule or
               regulation  of any  court  or  governmental  authority  to  which
               Crescent  is subject,  including  any  provision  relating to the
               status of Crescent Real Estate Equities Company ("CEI") as a real
               estate investment trust, or (iv) any judgment, decree, franchise,
               order,  license or permit  applicable  to Crescent,  except where
               such  conflict,  breach,  violation  or default  would not have a
               material adverse effect on Crescent.

                                     - 13 -






          (c)  Consents.  Except as set forth in  Schedule  5.2(c),  no material
               consent,  approval,  license or authorization of any third party,
               governmental  agency,  commission,  board or public  authority is
               required  in  connection   with  the   execution,   delivery  and
               performance of this Agreement by Crescent.

          (d)  SEC  Reports.   The  periodic  reports  filed  by  CEI  with  the
               Securities  and  Exchange   Commission   with  respect  to  CEI's
               immediately  preceding fiscal year and any interim periods in its
               current fiscal year did not as of their  respective dates contain
               any untrue  statements  of a  material  fact or omit to state any
               material fact required to be stated  therein or necessary to make
               the statements  therein,  in the light of the circumstances under
               which they were made, not misleading.


                                   SECTION 6.

                              CONDITIONS TO CLOSING

     6.1  Pre-Closing   Conditions.   The   consummation  of  the   transactions
          contemplated   by  this   Agreement   by  each  party  is  subject  to
          satisfaction of the following conditions, as applicable:

          (a)  Satisfaction of all of the conditions to closing set forth in the
               Real Estate Purchase and Sale Agreement;

          (b)  Execution of the Franchise Agreement in the form of Exhibit B and
               B-1 hereto  (except that (i) the  "Territory"  for each Franchise
               Owner (as defined in the Franchise  Agreement) shall be specified
               prior to execution  thereof in  accordance  with the criteria set
               forth on Schedule 6.1(b) and as reasonably determined by Magellan
               with input from the  individuals  who have been  designated to be
               the President  and the Chairman of the  Governing  Board of OpCo,
               (ii) the  identities  and fees  payable by each  Franchise  Owner
               shall be specified prior to execution thereof and (iii) all other
               missing information shall be completed prior to execution thereof
               and  reflecting  any  change in the amount of the  Franchise  Fee
               thereunder as mutually agreed by the parties);

          (c)  Execution  of the OpCo L.L.C.  Agreement in the form of Exhibit C
               hereto,  updated  to  reflect  any  change in the name or form of
               organization  of  Crescent,  the names of the  Directors  and the
               source of the initial bank financing referred to therein and with
               all missing information completed prior to execution thereof;

          (d)  Unless  working  capital  financing  has  been  obtained  from  a
               financial  institution  as provided in Section 7.1(t) of the Real
               Estate Purchase and Sale Agreement,  execution of the Bridge Loan
               Agreement in the form of Exhibit D and D-1;

          (e)  Execution  of the  Warrant  Agreement  in the form of  Exhibit  E
               hereto  (updated  to  reflect  any  change in the name or form of
               organization of Crescent Corp. and with the number of

                                     - 14 -





               shares  issuable  under the Warrant  completed  and the  exercise
               price completed, reflecting the same premium as used to calculate
               the exercise  price for the warrants  under the Magellan  Warrant
               Agreement, and based upon a valuation of Crescent Corp. conducted
               by a mutually agreed upon independent appraiser); and

          (f)  The  truth  and  accuracy  in  all   material   respects  of  the
               representations  and warranties made herein and compliance in all
               material  respects  with all  covenants  and the delivery by each
               party of an officer's certificate so stating.

     6.2  Failure of Conditions. If any condition described in subsections (a) -
          (f) of Section  6.1 is not  satisfied  by the Closing  Date,  Crescent
          shall have the right to terminate  this  Agreement  by giving  written
          notice of such action to Magellan and Magellan shall have the right to
          terminate by giving written  notice to Crescent.  Upon delivery of any
          such  termination  notice,  this Agreement  shall  terminate,  and all
          rights and obligations of the parties  hereunder shall be released and
          discharged,  except that Magellan,  on the one hand, and Crescent,  on
          the other hand,  shall each remain liable to the other for all damages
          suffered by the other if the unsatisfied condition was due to a breach
          by one party of any of the covenants, obligations,  representations or
          warranties  of such party in this  Agreement  or any other  failure by
          such party to use its commercially  reasonable best efforts to satisfy
          conditions  precedent  to Closing  that are within the control of such
          party to satisfy.


                                   SECTION 7.

                            COVENANTS AND AGREEMENTS

         Magellan covenants and agrees, and will cause each Magellan  Subsidiary
to covenant and agree, and, as applicable,  Crescent and OpCo covenant and agree
as follows:

     7.1  Unlisted Assets. To the extent that,  subsequent to Closing,  an asset
          or right that is used in the conduct of the business of the  Hospitals
          prior to  Closing  and that was not  listed  as a  Contributed  Asset,
          Purchased  Asset,  Working  Capital  Asset  or an  Excluded  Asset  is
          discovered  to exist,  either such asset or right shall be conveyed to
          OpCo without charge or OpCo shall receive the benefits of ownership of
          such asset  through the Franchise  Agreement at no  additional  charge
          (except  to the  extent  that the  asset  results  in an  increase  in
          franchise  fees due to the gross  revenue  component of the  franchise
          fees);

     7.2  Assignment or Transfer of Contributed  Assets.  To the extent that any
          of the Contributed Assets cannot be assigned or otherwise  transferred
          to OpCo, Magellan will use its commercially reasonable best efforts to
          create  an   alternative   structure   that  will  provide  OpCo  with
          substantially  the same  rights,  and produce  substantially  the same
          economic effect, as that which would have been provided or produced if
          the Contributed Assets had been transferred or assigned.


                                     - 15 -





     7.3  Parties' Commercially  Reasonable Best Efforts.  Magellan and Crescent
          agree to use their  commercially  reasonable best efforts to cause all
          their  covenants and agreements  and all  conditions  precedent to the
          consummation of the Transactions  contemplated by this Agreement to be
          performed, satisfied and fulfilled.

     7.4  Insurance  Reserves.  Magellan will cause Plymouth  Insurance  Company
          Ltd.  ("Plymouth") to maintain reserves in amounts that are reasonably
          actuarially  adequate  to cover risks  insured by Plymouth  associated
          with the operation of the business of the Hospitals.

     7.5  Accounts  Receivable.  OpCo shall pay to Magellan all amounts actually
          received by OpCo in payment of receivables relating to the business of
          the Hospitals, which receivables were existing as of (or accrued prior
          to)  the  Closing  Date,  in  exchange  for a fee  payable  to OpCo by
          Magellan equal to 5% of receivables  collected by OpCo and received by
          OpCo or Magellan. The receivables will be collected in accordance with
          the  procedures  (including  the  level  of  effort  to  be  expended)
          established by Charter  Behavioral  Health Systems,  Inc. prior to the
          Closing Date and disclosed to OpCo in writing on or before the Closing
          Date. Any receivables remaining uncollected 120 days or more after the
          Closing  Date will be turned  over to Magellan at its request and OpCo
          shall  have no further  obligations  as to such  receivables  but will
          continue  collection  efforts for all  receivables not so delivered to
          Magellan.

     7.6  Brokers.  Each party  represents and warrants to the other that it has
          not engaged,  dealt with or otherwise  discussed this Agreement or the
          Transactions with any broker, agent or finder.

     7.7  Specific  Performance.  The parties  acknowledge  and agree that their
          respective  rights  and  obligations  that  will  arise  out  of  this
          Agreement are unique and irreplaceable, and that the failure of either
          party to perform its  obligations  under this  Agreement or any of the
          Transaction  Documents  would result in damage to the other party that
          could not be adequately  compensated by a monetary  award.  Subject to
          Section  8.4 of the  Real  Estate  Purchase  and  Sale  Agreement  but
          notwithstanding  anything else to the contrary,  the parties therefore
          agree that if either party fails to perform its obligations  hereunder
          or with respect to any of the Transaction  Documents,  the other party
          may,  in  addition  to all other  remedies,  seek an order of specific
          performance from a court of appropriate jurisdiction.

     7.8  Third Party Consents; Further Assurances.

          (a)  If any  party  shall  fail to  obtain  any  third  party  consent
               necessary,  proper or advisable to effect the consummation of the
               Contribution,  the  purchase  of  the  Purchased  Assets  or  the
               purchase of the Working Capital Assets,  such party shall use all
               commercially  reasonable  best  efforts,  and shall take any such
               actions  reasonably  requested by the other  parties  hereto,  to
               minimize any adverse effect upon OpCo's  business  resulting,  or
               that  could  reasonably  be  expected  to  result  after the date
               hereof, from the failure to obtain such consent.


                                     - 16 -





          (b)  In addition to the actions,  contracts and other  agreements  and
               documents and other papers  specifically  required to be taken or
               delivered pursuant to this Agreement,  each of the parties hereto
               shall execute such  contracts and other  agreements and documents
               and take such further  actions as may be  reasonably  required or
               desirable to carry out the provisions of this Agreement.

     7.9  Services Agreements.  Prior to closing, Magellan, in its capacity as a
          joint venturer,  will or will cause any Magellan Subsidiary which is a
          joint  venturer in any Joint  Venture that owns or operates a domestic
          Hospital,  which  Joint  Ventures  are set forth on  Schedule  7.9 and
          defined in the  Franchise  Agreement as "Existing  Joint  Ventures" (a
          "Joint  Venture"),  to enter into a services  agreement  with OpCo for
          each such Hospital owned or operated by a Joint  Venture,  pursuant to
          which  OpCo  will  perform,  to the  extent  agreed  by joint  venture
          partners,  all of  Magellan's  obligations  under  the  Joint  Venture
          agreement  in  exchange  for the  payment to OpCo by  Magellan  of all
          distributions  and fees paid to  Magellan by or on behalf of the Joint
          Venture. Magellan will use its commercially reasonable best efforts to
          obtain  the  consent  of  Magellan's  joint  venture  partners  to the
          performance,  by OpCo,  of  Magellan's  obligations  under  the  Joint
          Venture  Agreements.  Each service  agreement,  as referred to in this
          Section 7.9,  shall be approved by Crescent,  which approval shall not
          be unreasonably  withheld. The services agreement(s) shall continue in
          effect until termination of the Facilities Lease.

     7.10 Employee  Benefits.  The parties agree to establish  employee  benefit
          plans for the employees of OpCo  providing for overall  benefits in an
          amount similar to the benefits  provided by the employee benefit plans
          in  effect  on  the  date   hereof  at  Magellan   and  the   Magellan
          Subsidiaries.

     7.11 Title to Property. Magellan and the Magellan Subsidiaries shall convey
          at the  Closing  pursuant  to the  form of bill  of sale  attached  as
          Exhibit I to the Real Estate Purchase and Sale Agreement, (i) good and
          marketable title to the Contributed  Assets,  the Purchased Assets and
          the Working  Capital  Assets (to OpCo or such OpCo  Subsidiary as OpCo
          directs)  owned by  Magellan or a Magellan  Subsidiary,  subject to no
          liens,  encumbrances  or material  claims  whatsoever,  except for the
          Assumed Obligations and except for any liens,  encumbrances and claims
          related to the  purchase of property  on an  installment  basis in the
          ordinary course of business, and (ii) all of their rights and interest
          in the  Contributed  Assets,  the  Purchased  Assets,  and the Working
          Capital Assets leased by Magellan or a Magellan Subsidiary.

     7.12 Right to Inspect.  Magellan  shall grant OpCo the right to inspect any
          and all  business  records  retained by  Magellan  pursuant to Section
          2.2(z) during  reasonable  business  hours and upon  reasonable  prior
          notice.  OpCo shall  grant  Magellan  access to any  business  records
          transferred  to  OpCo  during  reasonable   business  hours  and  upon
          reasonable prior notice.



                                     - 17 -





                                   SECTION 8.

                                 INDEMNIFICATION

     8.1  Indemnification  Obligations of Magellan. Magellan shall indemnify and
          hold harmless OpCo and its subsidiaries and affiliates,  each of their
          respective  officers,  directors,   partners,  employees,  agents  and
          representatives  and each of the permitted  successors  and assigns of
          any of the foregoing  (collectively,  the "OpCo Indemnified  Parties")
          from,  against  and in  respect  of any and all  claims,  liabilities,
          obligations,  losses,  costs,  expenses,  penalties,  fines  and other
          judgments  (at  equity  or at law)  and  damages  (including,  without
          limitation,  amounts paid in settlement,  costs of  investigation  and
          reasonable  attorneys' fees and expenses)  (collectively,  "Claims and
          Damages")  arising  out  of or  relating  to  (i)  any  breach  of any
          representation,  warranty,  covenant, agreement or undertaking made by
          Magellan in this Agreement or in any certificate,  agreement,  exhibit
          or  schedule  delivered  pursuant  to  this  Agreement,  or  (ii)  the
          ownership,  lease or operation of the  Hospitals and  attributable  to
          events  arising  prior to the  Closing  (including  claims  made after
          Closing  related  to events  occurring  prior to  Closing)  other than
          Assumed  Liabilities  or liabilities to the extent they are covered by
          existing insurance,  provided,  however,  that if the insurer does not
          pay insured  amounts under the terms of the policies,  Magellan  shall
          indemnify the OpCo Indemnified Parties for such debts, liabilities and
          obligations.  The Claims and Damages of the OpCo  Indemnified  Parties
          described in this Section 8.1 as to which the OpCo Indemnified Parties
          are entitled to indemnification are hereinafter  collectively referred
          to  as  "OpCo  Losses."   Notwithstanding  anything  to  the  contrary
          contained herein,  Magellan's indemnity obligations hereunder will not
          extend to claims arising out of willful misconduct or fraud of OpCo.

     8.2  Indemnification  Obligations  of OpCo.  OpCo shall  indemnify and hold
          harmless  Magellan and its  subsidiaries  and  affiliates  and each of
          their respective officers, directors,  partners, employees, agents and
          representatives  and each of the permitted  successors  and assigns of
          any  of  the  foregoing   (collectively,   the  "Magellan  Indemnified
          Parties")  from,  against  and in  respect  of any and all  Claims and
          Damages  arising  out of or  relating  to any debts,  liabilities  and
          obligations  relating to (i) the ownership,  lease or operation of the
          Hospitals and  attributable to events which arise after the Closing or
          (ii) the Assumed  Obligations.  The Claims and Damages of the Magellan
          Indemnified  Parties  described  in this  Section  8.2 as to which the
          Magellan  Indemnified  Parties  are  entitled to  indemnification  are
          hereinafter   collectively   referred   to   as   "Magellan   Losses."
          Notwithstanding  anything to the  contrary  contained  herein,  OpCo's
          indemnity  obligations hereunder will not extend to claims arising out
          of willful misconduct or fraud of Magellan.

     8.3  Indemnification Procedure.

          (a)  Promptly after receipt by an OpCo Indemnified Party or a Magellan
               Indemnified  Party (each an  "Indemnified  Party") of notice by a
               third party of any complaint or the commencement of any action or
               proceeding with respect to which  indemnification is being sought
               hereunder,  such  Indemnified  Party shall  notify  OpCo,  if the
               Indemnified Party is a

                                     - 18 -





               Magellan Indemnified Party, or Magellan, if the Indemnified Party
               is a OpCo Indemnified Party (the "Indemnifying  Party"),  of such
               complaint or of the  commencement  of such action or  proceeding;
               provided, however, that the failure to so notify the Indemnifying
               Party shall not relieve the Indemnifying Party from liability for
               such claim arising  otherwise  than under this Agreement and such
               failure to so notify the  Indemnifying  Party  shall  relieve the
               Indemnifying  Party from liability which the  Indemnifying  Party
               may have under this  Agreement with respect to such claim if, but
               only if, and only to the extent that,  such failure to notify the
               Indemnifying  Party results in the forfeiture by the Indemnifying
               Party  of  rights  and  defenses   otherwise   available  to  the
               Indemnifying  Party with respect to such claim.  The Indemnifying
               Party  shall  have  the  right,   upon  written   notice  to  the
               Indemnified  Party,  to  assume  the  defense  of such  action or
               proceeding,   including  the  employment  of  counsel  reasonably
               satisfactory  to the  Indemnified  Party and the  payment  of the
               reasonable fees and disbursements of such counsel.  In the event,
               however,  that the Indemnifying Party declines or fails to assume
               the  defense of the  action or  proceeding  or to employ  counsel
               reasonably  satisfactory to the Indemnified Party, in either case
               in a timely  manner,  then  such  Indemnified  Party  may  employ
               counsel  to  represent  or  defend  it  in  any  such  action  or
               proceeding  and the  Indemnifying  Party shall pay the reasonable
               fees and  disbursements  of such counsel as  incurred;  provided,
               however, that the Indemnifying Party shall not be required to pay
               the fees and  disbursements  of more  than  one  counsel  for all
               Indemnified  Parties in any  jurisdiction in any single action or
               proceeding.  In any action or  proceeding  with  respect to which
               indemnification is being sought hereunder,  the Indemnified Party
               or the Indemnifying Party,  whichever is not assuming the defense
               of such  action,  shall  have the  right to  participate  in such
               litigation  and to retain  its own  counsel at such  party's  own
               expense.  The Indemnifying Party or the Indemnified Party, as the
               case may be,  shall at all times use  reasonable  efforts to keep
               the Indemnifying  Party or the Indemnified Party, as the case may
               be,  reasonably  apprised  of the  status of the  defense  of any
               action,  the defense of which it is maintaining  and to cooperate
               in good  faith  with the  Indemnifying  Party or the  Indemnified
               Party,  as the case may be,  with  respect to the  defense of any
               such action.

          (b)  No  Indemnified  Party  may  settle  or  compromise  any claim or
               consent  to the  entry  of any  judgment  with  respect  to which
               indemnification  is being  sought  hereunder  without  the  prior
               written   consent  of  the   Indemnifying   Party,   unless  such
               settlement,  compromise  or  consent  includes  an  unconditional
               release of the Indemnifying  Party from all liability arising out
               of such claim. An Indemnifying  Party may not,  without the prior
               written  consent of the Indemnified  Party,  settle or compromise
               any claim or consent to the entry of any judgment with respect to
               which  indemnification  is being  sought  hereunder  unless  such
               settlement,  compromise  or  consent  includes  an  unconditional
               release of the Indemnified  Party from all liability  arising out
               of such claim and does not contain any equitable order,  judgment
               or term which in any manner affects, restrains or interferes with
               the business of the  Indemnified  Party or any of the Indemnified
               Party's respective affiliates.

          (c)  In the event an Indemnified  Party shall claim a right to payment
               pursuant to this  Agreement,  such  Indemnified  Party shall send
               written  notice  of such  claim to the  appropriate  Indemnifying
               Party.  Such notice  shall  specify the basis for such claim.  As
               promptly as possible after the  Indemnified  Party has given such
               notice, such Indemnified Party and the appropriate

                                     - 19 -





               Indemnifying  Party shall establish the merits and amount of such
               claim (by mutual agreement, litigation, arbitration or otherwise)
               and, within five business days of the final  determination of the
               merits and amount of such  claim,  the  Indemnifying  Party shall
               deliver to the Indemnified Party  immediately  available funds in
               an amount equal to such claim as determined hereunder.

          (d)  Liability Limits. To the extent any claim for OpCo Losses against
               Magellan   is  based   upon  the   alleged   inaccuracy   of  any
               representation  or  warranty  contained  in  Article  5  of  this
               Agreement,  then, for a period  beginning on the Closing Date and
               ending two years  later,  Magellan  shall only be liable for such
               OpCo Losses solely to the extent that any such OpCo Losses exceed
               in  the   aggregate  in  any  one  year,   one  million   dollars
               ($1,000,000.00).  Beginning  two years  after the  Closing  Date,
               Magellan  shall be  liable  for such  OpCo  Losses  solely to the
               extent that any such OpCo Losses exceed in the  aggregate  during
               such  period,  ten million  dollars  ($10,000,000.00);  provided,
               however,  that to the extent a claim for OpCo Losses is not based
               on the inaccuracy of a  representation  or warranty  contained in
               Article 4 of this Agreement, then such claim shall not be subject
               to the limitations  above,  nor shall the amount of any such OpCo
               Losses be included with other OpCo Losses in determining  whether
               such basket amounts have been reached.

          (e)  Claim Periods.  Indemnification  obligations under this Article 7
               for   pre-closing   and   post-closing   debts,   liabilities  or
               obligations  and for a breach of  representations,  warranties or
               covenants  shall  survive  until  expiration  of  the  applicable
               statute of limitations.


                                   SECTION 9.

                                  MISCELLANEOUS

     9.1  Fees and Expenses;  Transfer Costs.  Fees and expenses incident to the
          negotiation,  preparation  and  execution  of this  Agreement  and the
          performance of the Contribution  (including attorneys',  accountants',
          financial advisors' and other advisors' fees and disbursements)  shall
          be borne by the party  incurring the expense.  Magellan  shall pay all
          sales,  transfer and other recording  charges and conveyance  taxes in
          connection with the transfer of the Contributed  Assets, the Purchased
          Assets and the Working  Capital Assets to OpCo and in connection  with
          the transfer of any licenses or permits to OpCo.

     9.2  Notices.  Whenever any notice is required or permitted hereunder, such
          notice  shall be in writing and (a) sent by  certified  mail,  postage
          prepaid, return receipt requested,  (b) given by established overnight
          commercial courier for delivery on the next business day with delivery
          charges prepaid or duly charged, (c) personally  hand-delivered or (d)
          sent by facsimile

                                     - 20 -





          transmission with confirmation of receipt received,  to the applicable
          address or facsimile number set forth below:

                  (i)      if to Crescent:

                           Gerald W. Haddock, Esq.
                           President and Chief Operating Officer
                           Crescent
                           777 Main Street
                           Suite 2100
                           Fort Worth, Texas 76102
                           Facsimile: (817) 878-0429

                           with a copy to:

                           David M. Dean, Esq.
                           Senior Vice President, Law
                           Crescent
                           777 Main Street
                           Suite 2100
                           Fort Worth, Texas 76102
                           Facsimile: (817) 878-0429

                           Wendelin A. White, Esq.
                           Shaw, Pittman, Potts & Trowbridge
                           2300 N Street, N.W.
                           Washington, D.C. 20037
                           Facsimile: (202) 663-8007

                  (ii)     if to Magellan:

                           Steve J. Davis, Esq.
                           Executive Vice President,
                             Administrative Services and General Counsel
                           3414 Peachtree Road, N.E.
                           Suite 1400
                           Atlanta, Georgia 30326
                           Facsimile: (404) 814-5793


                                     - 21 -





                           with a copy to:

                           Robert W. Miller, Esq.
                           King & Spalding
                           191 Peachtree Street
                           Atlanta, Georgia 30303-1763
                           Facsimile:(404) 572-5100

Notices which are mailed shall be deemed  effective upon receipt.  Notices which
are hand- delivered shall be deemed effective upon tender to a natural person at
the address  shown.  Notices which are  delivered by overnight  courier shall be
deemed given on the next business day after  delivery to such  courier.  Notices
which are  delivered by facsimile  transmission  shall be deemed  received  upon
electronic confirmation of delivery.

     9.3  Entire  Agreement.   This  Agreement  and  the  Transaction  Documents
          (together  with  the  exhibits  and  schedules   hereto  and  thereto)
          supersede  all  prior  agreements  and  understandings,  both oral and
          written,  between  the  parties  with  respect to the  subject  matter
          hereof, all of which are null, void and of no force or effect.

     9.4  Waivers and  Amendments.  This  Agreement  may be  amended,  modified,
          superseded,   canceled,   renewed  or  extended,  and  the  terms  and
          conditions  of  this  Agreement  may  be  waived,  only  by a  written
          instrument  signed by the parties  hereto or, in the case of a waiver,
          by the party waiving compliance.

     9.5  Governing  Law.  This  Agreement  shall be governed by the laws of the
          State of Delaware,  without regard to the application of choice of law
          principles. The rule that an Agreement should be construed against the
          party  drafting  it shall  not  apply to this  Agreement  because  all
          parties have played a  significant  role in  negotiating  and drafting
          this Agreement.

     9.6  Severability.  If any term, covenant or condition of this Agreement is
          held to be invalid or unenforceable in any respect, such invalidity or
          unenforceability  shall  not  affect  any  other  provision,  and this
          Agreement  shall be  construed  as if such  invalid  or  unenforceable
          provision had never been contained in this Agreement.

     9.7  Binding Effect;  Benefit. This Agreement shall inure to the benefit of
          and be binding upon the parties hereto and their respective successors
          and  assigns.  Nothing in this  Agreement,  expressed  or implied,  is
          intended  to confer on any  person  other than the  parties  hereto or
          their  respective  successors  and  assigns,  any  rights,   remedies,
          obligations or liabilities under or by reason of this Agreement.

     9.8  No Assignment.  This  Agreement may not be assigned  without the prior
          written consent of the other party,  except that Crescent shall assign
          all of its rights and obligations hereunder to New Crescent.


                                     - 22 -





     9.9  Arbitration.

          (a)  Following  Closing,   any  controversy,   claim  or  question  of
               interpretation  arising out of or relating to this  Agreement  or
               the breach  thereof shall be finally  settled by  arbitration  in
               Delaware,  under the then-effective  Commercial Arbitration Rules
               of the  American  Arbitration  Association  as  modified  by this
               Agreement,  and judgment on the award rendered by the arbitrators
               may be  entered  in any  court  having  jurisdiction.  The  award
               rendered  by the  arbitrators  shall be final and  binding on the
               parties and not subject to further appeal.  Such  arbitration can
               be initiated by written  notice by either party (the  "Claimant")
               to the other party,  which notice shall  identify the  Claimant's
               selected  arbitrator.   The  party  receiving  such  notice  (the
               "Respondent")  shall  identify  its  arbitrator  within  ten (10)
               business  days   following  its  receipt  of  such  notice.   The
               arbitrator  selected by the Claimant and the arbitrator  selected
               by the Respondent  shall,  within ten (10) business days of their
               appointment, select a third neutral arbitrator. In the event that
               they are unable to do so,  either  party may request the American
               Arbitration  Association to appoint the third neutral arbitrator.
               The  arbitrators  shall have the authority to award any remedy or
               relief that a court in Delaware could order or grant,  including,
               without  limitation,   specific  performance  of  any  obligation
               created under this Agreement, the issuance of injunctive or other
               provisional  relief,  or the imposition of sanctions for abuse or
               frustration of the arbitration  process.  The  arbitration  award
               will be in writing  and  specify  the factual and legal basis for
               the award.

          (b)  The arbitrators  shall instruct the  non-prevailing  party to pay
               all costs of the proceedings,  including the fees and expenses of
               the arbitrators  and the reasonable  attorneys' fees and expenses
               of the prevailing party. If the arbitrators  determine that there
               is not a prevailing party, each party shall be instructed to bear
               its own costs and to pay one-half of the fees and expenses of the
               arbitrators.

     9.10 Counterparts.   This   Agreement  may  be  executed  in  two  or  more
          counterparts,  each of which  shall be deemed an  original  but all of
          which taken together shall constitute one and the same instrument.

     9.11 Exhibits and Schedules.  The exhibits and schedules delivered or to be
          delivered  pursuant to this  Agreement are a part of this Agreement as
          if set forth in full within the Agreement.

     9.12 Headings.  The headings in this  Agreement are for reference  purposes
          only and shall not in any way affect the meaning or  interpretation of
          this Agreement.

                                     - 23 -




     IN WITNESS WHEREOF, the parties have executed this Agreement as of the date
first above written.

                                                     CRESCENT


                                By: _____________________________________
                 Name:
                Title:



                                MAGELLAN HEALTH SERVICES, INC.


                                By: _____________________________________
                 Name:
                Title:


                                      -24-