Two kingdoms that were once one, separated by a wall of frost and stones.
Dinar is cursed with endless snow and governed by spectacular magic. Adrielle, its future queen, is rumored to be a ruthless killer and a master strategist, she is feared throughout the kingdom and beyond it, and will do anything to protect her family's crown.
Historia is an earth of blades and blood where the only magic capable of existing is the one that the Monsters possess. Arabella is a princess far down the line of succession, uninterested in the deadly war of her kingdom, she dedicated her sword to fight the monsters roaming her country.
But when Arabella's oldest friend is sent as a spy in Dinar and never returns, she decides to infiltrate the court herself as a potential bride for the prince to save her friend and maybe even put a stop to this endless war. But she will quickly find herself untangled with the cut-throat politics of the palace and somehow drawn to the dark princess.
Two princesses who never met enemies by blood will encover together secrets buried in history but will it be enough to stop the war?
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.