Without mercy
(Book)

Jules Farentino knows that her teenaged half-sister, Shaylee, has been having problems lately. But when she learns of her mother's plan to send Shay to an elite boarding school, she's skeptical. The Academy is a remote, secluded institution with a reputation. But one of its students went missing six months ago and has never surfaced. And the further Jules digs, the more concerned she becomes. On impulse, Jules applies for a teaching job at the Academy, and once there, her suspicions grow.