Help please!

[buckslass]

Hi, my partner has lost (i use that word rather loosely, we think it's actually been lifted) a signed 1st edition Terry Pratchett, he cannot remember the title and i can only remember the colours when it was last seen, recall it being 9"x6" approx. It was a hardback, main colours on front page black, silver and blue. I've looked on play.com and that lists about 120, pretty sure it wasnt any of them, partner thinks it may have been an old one.
If you happen to come across the one described above, Hogfather & Small Gods (both signed 1st editions too) in the Milton Keynes area - then please let me know asap
Many thanks & regards
buckslass

[sanityassassin]

could it possably be reaper man which is mainly black and blue on the cover although its hard to tell as josh kirbys covers are all very colourful