Barnes & NobleThe Lake by Natasha Preston

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 woods, the bugs, the boys. . . even swimming in the lake. It reminds her of how she and Kayla used to be. Before. . . Because Esme and Kayla did something terrible when they were campers. Something they've kept a secret all these years. They vow that this summer will be awesome. Two months of sun, s'mores, and flirting with the cute boy counselors. But then they get a message: THE LAKE NEVER FORGETS. The secret they've kept buried for so many years is about to resurface. [T]he strong buildup leads to a shockingly satisfying finale. An eerie thriller reminiscent of summer horror movies that will keep readers on edge. Kirkus "Pays homage to classic summer camp slasher films. . . horror fans will likely appreciate this paranoia-fueled tale".