Ever since Freya was little, she was trained as an assassin. That's just how it is in her world. She's trained to go after enemies that are a danger to the secret, the secret that Fae is among humans. Every year, assassins of high strength are assigned to Fae themselves. Freya is one of these assassins. When she gets assigned, she is distraught, seeing as she was assigned to protect her enemy, Prince Ambrose. Will Freya be able to be a worthy assassin, while trying not to kill the Fae she is assigned to?
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.