Musician Cassidy Drake has no idea who she really is until a brutal attack on her mother reveals truths she never could have imagined. Finn Brody, the mysterious man she meets at the hospital, suspects Cassidy's true nature when magic erupts around them.

Cassidy and Finn are drawn into a battle neither of them want. But they are essential in the quest to stop the evil fae queen from conquering the human world. Joined with the rest of The Four, can they defeat an entity with vast, unimaginable power? Or will they be the first casualties in the coming epic battle for survival?