Torn (Blood Lily Chronicles, Book 2)

From New York Times and USA Today bestselling author Julie Kenner (aka J. Kenner) … Lily Carlyle thought she was working for the forces of good. Attempting to close the gates of hell, Lily was betrayed by her handler and tricked into helping the demon hordes keep it open. Even more painful, Lily’s sister is possessed by the very demon that began their family nightmare. Aided by a half-demon she can’t entirely trust, but can’t entirely resist, Lily must pretend to be the good soldier in order to save her sister and the world. Lily is still unsure of who to trust. But now she knows who to kill.