After a terrifying encounter in Hell destroys her trust in Michael, the Guardians' powerful leader, former detective Andromeda Taylor is ready to call it quits as one of the angelic warriors and resume her human life again. But when demonic forces threaten her closest friends and she uncovers a terrifying plot devised by Lucifer, Taylor is thrown straight into Michael's path again...

To defeat Lucifer, Michael needs every Guardian by his side--and he needs Taylor more than any other. The detective is the key to keeping his own demonic side at bay, and Michael will do anything to protect her and keep her close. And when Taylor manifests a deadly power, her Gift might tip the scales in the endless war between Heaven and Hell...or it might destroy them both with a single touch.