This book is viewed in the perspective of a boy named Zack Newton. First he and all his friend's get seduced and dragged to a secret government base. Scientists experiment on humans and transform them into mutants.
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.