What is the most chilling book you've ever read?

[Beatgrrl]

At this time of year, I really love to snuggle up under a blanket, get all comfy and absolutely terrify myself with a great book and I could really use some recommendations. Which books have been absolutely bone-chillingly terrifying for you? Which have been the books that have left you too afraid to turn the lights out; too afraid to move? Which books have made you feel too scared to turn the page?

The Loney by Andrew Michael Hurley.
A Headfull of Ghosts by Paul Tremblay.
Dark Tales by Shirley Jackson (creepy short stories).

Babysitter by Joyce Carol Oates

Engleby by Sebastian Faulks
After the Party by Cressida Connolly
Never let me Go by Kazuo Ishuguro

Stephen King's IT i found the comments in italics which was the childrens thoughts, very chilling, the book is nothing like the film.

The Dark Half is v good too, though not as scary, but very weird.

Oh yes, IT. Read it at 13yo, made me scared of drains!
Poe's The Mask of the Read Death is uber creepy - in fact, anything Poe.

Michelle Pavers novel's are so chilling with an almost immediate growing feeling of dread and suffocation.

Tender is the Flesh by Agustina Bazterrica. A dystopian cannibal horror. It stays with you and the more you think about it the more you realise it could be a reality one day.