Meet Faith, a broken girl with a terrible burden: being a Guardian Angel. As a Guardian, you are assigned a Watched, who you must help through the bad times in their life. Faith had made the terrible mistake of bonding with her watched, which led to heartbreak. When she was reassigned, she made a vow, to never get attached to her Watched again. But the oath she made that day proves practically impossible to keep, when she meets her new Watched. Aidan Riley, despite his mess of a life, is a charismatic, charming, and handsome young guy, and Faith can’t help but be pulled in by his intoxicating presence. As Aidan and Faith move closer, they are both thrust into whole new worlds. But Faith can’t really let him in, not after what happened last time. And love is forbidden between Guardians and mortals. As Aiden and Faith try to make life-changing decisions, Lucifer is plotting. Plotting to settle the score, plotting to bring destruction to the doorstep of Heaven itself.
In the epic conclusion to the Devil's Deal series, Freya has one final chance to discover the full potential of her own power, and to use it to restore balance in the universe - once and for all. After the destruction caused by Roisin, Ferya and Torix come to terms with their losses and mistakes... And prepare for a final battle that will change everything.