To make a living, seventeen-year-old Eloise Wylde helps her alcoholic dad cheat during poker games. But when Eloise makes a mistake, her dad's life is threatened. Either she counts cards for Randy, the infamous drug dealer they've cheated, or her Dad dies. As if by magic, Eloise stumbles upon the green-eyed Light, who has an even darker past than herself. He promises to save her dad if she strikes a deal with him. However, his calm and collected personality hides a shadowy secret. Eloise agrees and Light plunges her into a world where the police are animalistic, mermaids run a black market, and inter-dimensional portals resemble airports. When Eloise realizes she must choose between her anticipated reunion with her dad or saving Light from a grim fate, she discovers love is like sealing a demonic contract-it can kill you.
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.