Twenty One years after the salvation of the corrupted world that Silver and her three companions saved, a new story arises.
Minx and Fawn were once one person, a little boy named Sam. Unfortunately Sam became fatally ill, and through the use of long out-dated magic, Sam survived - with a consequence. His body was split into two, one mute male body and one blind female, The Bloody Twins.
Salvaged from Lyon Corps, a facility that thrives on the making of child soldiers and children into experiments, the twins are forced to live on the run. But now they're back and with the assistance of unlikely allies, an abundance of enemies and an unwavering sibling bond they plan to wreak havoc upon those who made them like this. The Bloody Twins are out for revenge.
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.