'A visceral, unflinching, and emotionally powerful horror novel...this is Gould at her most poignant and most electric.' -Ava Reid, #1 New York Times bestselling author of A Study in Drowning Yellowjackets meets Girl, Interrupted when a group of troubled teens in a wilderness therapy program find themselves stranded in a forest full of monsters eager to take their place. Devin Green wakes in the middle of the night to find two men in her bedroom. No stranger to a fight, she calls to her foster parents for help, but it soon becomes clear this is a planned abduction--one everyone but Devin signed up for. She's shoved in a van and driven deep into the Idaho woods, where she's dropped off with a cohort of equally confused teens. Finally, two camp counselors inform them that they've all been enrolled in an experimental therapy program. If the campers can learn to change their self-destructive ways--and survive a fifty-days hike through the wilderness--they'll come out the other side as