All Sera ever wanted was to solve the mystery of her dad's death and find out whether or not the Night Angel, Peter, really loved her. Now, there are bigger issues at stake. After being saved from death by the Night Angels, Sera returns to Oak Haven to find her brother, Salem, has been saved by her nemesis, the sinister Los Angeles mayor-to-be, Fabian Gore. Sera and her brother meet again in their hometown of Oak Haven as powerful denizens. And as enemies. Someone is channeling power to the Queen, imprisoned in St. Catherine's Monastery. If she escapes, the Ancient Ones will rise up from their sarcophagi beneath churches throughout the world and wreak vengeance on denizens and humans alike.

To thwart the Queen, Sera has no choice but to form an uneasy alliance with Gore. Meanwhile, Sera's power and her connection to the Key of Mystery is growing. Only she can open the Book of Angels. But whoever does that will become something that Sera never wants to be: the Seventh Angel. How can Sera solve her own problems when everyone else wants her to solve their problems as well?