As humans, it is believed that we create our own demons but are they really demons? Is it possible that the things we are calling "demons" are just the things we consider to be different? Why must the ones who are supposedly different be treated so poorly? It's not like they asked to be this way, they're just made like this. A young girl is born into this "different" faction and is in a life or death situation that involves her, her "other half," and everyone else around her. She has to choose to either embrace the darkness and become one with her other half or go against what she was born to be and save everyone from the one thing causing all the problems, herself.
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.