Instant New York Times BestsellerOne of Fall 2019's Best Books (People, EW, Lithub, Vox, Washington Post, and more)A young boy is haunted by a voice in his head in this acclaimed epic of literary horror from the author of The Perks of Being a Wallflower.Christopher is seven years old.Christopher is the new kid in town.Christopher has an imaginary friend.We can swallow our fear or let our fear swallow us.Single mother Kate Reese is on the run. Determined to improve life for he