In a world where supernatural beings exist and murder innocent humans where no other human can see them what will Garry do with just a dagger that has magical properties allowing him to kill them.
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.