Spain, 1539. Humans and merfolk coexist somewhat peacefully, despite the latter species' dangerous and elusive nature.
Rafael Reyes is a metalworking merchant who can barely get by. His life is simple, routine, and terribly depressing. In his opinion, variety and excitement are things for people who don't struggle to buy a loaf of bread.
But excitement shows up on the shoreline, whether he wants it to or not. It shows up as a creature that is just as capable of stealing his heart as it is of ripping it 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.