HA!!! I knew I couldn't be the only one that thought Lovecraft was using that 'undescribable horror' bit to avoid having to describe it in detail!

I always thought I was some kind of horror genre geretic for thinoing that, but no more! :D

I didn't read the book but I saw the movie and it's the only horror movie that has scared me since I became an adult.:)

Hungry Moon by Ramsey Campbell. Hard to find but worth the read. The gloom and fog on the english moors just escalates as it goes along. But his style of writing takes a bit of getting used to, myself being more accustomed to his short stories rather than novels.

The book is way scarier than the film, it really will scare ya :D