Eridell is a valley that rests hidden amongst mountains and dense forests; a fantastical kingdom where humans and dragons are companions, linked together at birth with a strong telepathic connection. In this kingdom, there live three especially unique people: Syn, a dragon breeder linked with a common dragon, leaving him at the bottom of the hierarchy; Kira, a respected rider who soars the skies protecting and patrolling her kingdom; and Edlyn, a princess who longs to rule better than her father.
A cold-blooded murder sends shockwaves through Eridell, leaving them helpless and stripped of a ruler. This is when Syn, Kira, and Edlyn are brought together from different worlds, entrusted with bringing down the murderer who has put everything they know in danger. With the help of a dragon shifter who seeks redemption and dragons they never knew existed, the three begin their journey; a journey that will push them to their mental and physical limits. How far will each one go in an attempt to reshape their lives, and is it all in vain?
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.