Two years ago, Laura was in a cult. But when the sprawling house in the hollow burned down with Vervain, their strikingly handsome and magnetic leader, trapped inside, Laura had nowhere to go but home. Brokenhearted, she finds herself longing for their lost leader—despite the trauma of that strange and terrifying year, she knows the power he promised her was real. But when her estranged friend, Aliyah, calls to tell her that Daniel, one of the other acolytes, has been lured back to the hollow by a message from Vervain, Laura only hears one thing: He’s still there. As Laura and Aliyah venture back to the house of their nightmares to find the truth, Laura soon realizes that not everything she remembers can be trusted—and that the darkness will do anything to get her back.