Humanity has uncovered the earths long time hidden creatures, which they call the Unknowns. These creatures can range from vampires, to shape shifters, to half-man half-animals, to those who can bend elements, time and space. And those with superhuman abilities. Humanity has locked these creatures out and walled up their cities, reverting back to olden day techniques in transport and clothing, trying to cleanse their world and get rid of these creatures. Vera, a seeminly ordinary human girl, wanders alone, but like most of the Unknowns, she is not what she seems. But even she doesn't realize her true power, and why every Unknown she encounters, knows her name, and would lay down their life to protect her.
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.