In today's Esdevium releases (they are probably the biggest distributor for games in the UK, so if you have a local games shop there is a VERY high chance they get stock from Esdevium!) -
Shipping for 22 December, Call of Cthulhu Card Game Core Set, RRP £8.99
www.esdeviumgames.com/newreleasesheets/December22nd2008web.pdf
So should be in your local store just before Christmas, with a little luck!