Confidential - Adventure Club

I've just rediscovered in my attic 16 issues of an adventure magazine
called Confidential (1989 - 1991). It was a subscription magazine by an
adventure club called Official Secrets which was part of a company
called Special Reserve. There are plenty of interviews with companies
like Infocom, review, hints and tips on creating adventure games etc.

I seem to remember getting a free game called "Myth" by Magnetic
Scrolls which was only ever given to club members - but there's no sign
of it anywhere now

Does anybody else remember this magazine? A search on Google brings
back only a couple of references to reviews in the magazine and nothing
much about the magazine itself.