Spooky books about the woods to send a shiver down my spine while camping

Hi all, I’m going camping next week and I’d love suggestions for spooky horror/thriller/mystery novels to send a shiver down my spine! Ideally something set in the woods or camping/wilderness related. I’m planning to bring an Algernon Blackwood collection but I’d also like to have a full-length novel.

I love ghost stories and the like, not so interested in cannibals and things like that. Not interested in YA, and since I see it suggested so much I did not care for The Fisherman (I thought the writing was poor).

Thanks in advance 🙂