Divine law has been broken. Officers Bones and Bishop are pulled off their assigned mundane jobs to take up their original roles as homicide detectives, two hundred years after their last case. At first sight, it looks like a routine suicide, until the Hound picks up an extra set of DNA signatures and a syringe containing an unusual purple liquid.
To make matters worse, Officer Bones is struggling to keep her emotions together. Time is wearing her down and so is her former partner. She needs to solve the case quickly. It's only a matter of time before she cracks, or even worse; Bishop finds out.
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.