Mankind has always been afraid of the sea, that is, until now.
Meri has been born in a time of danger for any mermaid, where the tyrant king Derek rules only for the death of humanity. Forced to join the Legion, the branch of the merfolk army designed to hunt humans, Meri is forced kill the creatures she finds so fascinating, especially one who turns out to be her one and only soul mate.
Would she be able to find out the truth of why the humans are so dreaded? And at the same time, fight for her heart.
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.