Exhibit 4.18
                                DEMAND DEBENTURE


February 7, 2003                                                CDN $600,000,000


The undersigned, 3351611 Canada Inc., a corporation existing under the laws of
Canada (the "CORPORATION"), for value received, hereby promises to pay to the
order of Bank of America, N.A. ("BA"), for its own benefit and on behalf and for
the benefit, and as holder of an irrevocable power of attorney ("FONDE DE
POUVOIR") under Article 2692 of the Civil Code of Quebec, of each of the other
Lenders (BA in the aforesaid capacities, the "AGENT") as defined in the Credit
Agreement (as defined below), ON DEMAND, at such address or addresses as the
Agent may designate at any time and from time to time by notice in writing to
the Corporation, upon presentation and surrender thereat of this Debenture, the
sum of SIX HUNDRED MILLION DOLLARS ($600,000,000) in lawful money of Canada, and
to pay interest thereon, before as well as after maturity and both before and
after default, from the date of this Debenture, at the same place, in like money
at a rate of TWENTY-FIVE PER CENT (25%) per annum from the date hereof, together
with interest on overdue interest (computed monthly) at the same rate from its
due date to the date of payment. This Debenture (a) is issued pursuant to the
provisions of the Credit Agreement, (b) is secured by a deed of hypothec made by
the Corporation in favour of the Agent and governed by the laws of the Province
of Quebec, and (c) is governed by the laws of the Province of Quebec.

Notwithstanding the fact that this Debenture is stated to be payable on demand,
payment of this Debenture may not be demanded until the occurrence of an Event
of Default (as defined in the Credit Agreement) which is continuing and which
has not been waived in accordance with the terms of the Credit Agreement.
Furthermore, notwithstanding the fact that this Debenture is in the amount of
$600,000,000 and bears interest at the rate of 25% per annum, the Corporation
shall not have any obligation, at any time, to make payment under this Debenture
for any amount in excess of its indebtedness under the Credit Documents then
outstanding.

"CREDIT AGREEMENT" means that certain credit agreement dated as of February 7,
2003 among Sun Media Corporation, as Borrower, the financial institutions named
on the signature pages thereto, as Lenders, and BA, as Administrative Agent, as
same may subsequently be amended, amended and restated, modified, supplemented
or replaced from time to time.

Capitalized terms not otherwise defined in this Debenture have the meaning
ascribed thereto in the Credit Agreement.

This Debenture may be transferred by the Agent only to a successor agent
appointed under and in accordance with the provisions of the Credit Agreement.





                               3351611 CANADA INC.





                             Per:  /s/ CLAUDINE TREMBLAY
                             ---------------------------
                             Name: Claudine Tremblay
                             Title: Assistant Secretary