Violet Eden is Grigori – part angel, part human. Her destiny is to protect humans from the vengeance of exiled angels. Knowing who to trust is key but when Grigori reinforcements arrive it becomes clear everyone is hiding something. Even Lincoln. The only thing Violet does know ... Phoenix's hold over her is more dangerous than ever. The race to find the one thing that could forever tilt the balance of power takes them all to the sacred mountains of Jordan, where Violet's own powers will be pushed to the extreme. And the ultimate betrayal exposed.