Disappearance At Devil's Rock

"Tommy Sanderson, a 13-year-old living with his single mother and sister just outside Boston, doesn’t come home after a sleepover with his buddies. The search for him begins in Borderland, a nearby forest: specifically a place called Split Rock, a cleft boulder with a dead tree sticking out of it that the boys have begun referring to as Devil’s Rock. From that simple premise, Paul Tremblay crafts an intricate, perception-rattling mystery in which nothing is as it seems — the kind of thriller that takes the simple premise of a lost child and twists it into a dizzying emotional vortex."