The Merciless - Danielle Vega

Sofia is new in town, desperate for a fresh start at her new school. On her first day, she meets three seemingly perfect girls who invite her into their circle. Sofia's expectations are shattered when her new friends kidnap Brooklyn, a troubled classmate, and attempt to save her. The girls stage an exorcism, but their efforts spiral wildly out of control. Over the course of one weekend, Sofia will learn more than she ever bargained for about friendship, secrets, and the terrifying darkness of the human soul. In an astonishing final showdown, Sofia will learn who is good and who is evil. What she discovers is the biggest surprise of all...