Avery doesn't belong at Theaa, an academy where angels learn to fight demons in the eternal war between Heaven and Hell. The main problem is. Avery is in love with a demon. On Earth, they'd been girlfriends, and now, they're forbidden lovers. Now that Avery knows that Desire is stuck as a demon in Hell because of her, she has to come up with a plan to save her. Even if it costs her salvation.