I love Crab's Moon Brian. A welsh classic by the great Guy N. Smith. I've read all his Crab novels I think. If slime is about slugs I've read that too. the rest look superb! Spider legs looks skin-crawly creepy. I love the fact that one of the authors is called pickover! Grisly!
I also have the series of MEG novels,tales of a giant prehistoric shark.Look for a screenplay in theaters this Summer!
Those MEG novels sound ace Brian. And promise of a film! Wow!