The instant New York Times bestseller! Hot on the heels of The Twin, the undisputed queen of YA thrillers is back with a scary and suspenseful read about a summer camp filled with dark secrets. Esme and Kayla once were campers at Camp Pine Lake. Now they're back as counselors-in-training. Esme loves the little girls in her cabin and thinks it's funny how scared they are of everything--the...