An unlikely pair meet and form an unbreakable bond. Wren and Athen are both heirs, but to very different thrones. Athen, the son of a tyrannical emperor, was abandoned as an infant and taken in by a kind faerie named Amira. Wren, the child of the leaders of the revolution against the dynasty, watches their family get slaughtered for their defiance. Running into the forest to escape the same fate. the two meet and form an unlikely bond, growing up together and being raised by the fae. When they finally leave the nest to go out on their own, their pasts come back to haunt them and it seems they are more intertwined with one another's fate than anyone had previously thought them.
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.