Without going into specifics so the creature/entity/plot is given, I’m looking for horror that is keep-you-up-at-night level. A good wendigo or poltergeist or even disease epidemic book would be greatly appreciated.
I loved books like Pet Sematary, the Troop, The Quiet Boy (short story), Contagion. I try to go into horror blind so I am fully unaware of what to expect, so I’ve read a lot of duds lately. Psychological horror is ok, if it’s unpredictable/not just “normal person gaslit into thinking they’re crazy” type trope.
The only horror I was unable to finish was Tender is the Flesh. My kudos to you if you got through that one.
Thank you all for your advice


The book that scared me the most was not actually a horror book. It’s a sci-fi novel, The Snail on the Slope, by Strugatsky brothers.
The repetitive dialogue is what a lot of people seem to hate about it, but that’s exactly what set the existential dread in me as I was reading it. Just wandering through life half-asleep, going through the motions in a brain fog… brrr