Edward Xu had known Sonia Henson since kindergarten. The two of them and a whole collection of kids had played in the woods and by the ocean for months in the summer. They would imagine all sorts of things, wisps and mermaids, creatures in the dark of the tidepools and trees. As they grew, their games and imaginations matured, their playful behavior soon turned to concern for school and sport.
Halfway through sophomore year, Sonia Henson went missing. Her body was found on the beach that spring; left with an empty hole in her skull and answerless questions that rang through the town.
Eddie soon catches on to just why Sonia died, now adamant to find her killer. Little does he know that there is far more to her death than he thinks -magic, murder, malicious plans and merfolk.
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.