A war, as old as humanity itself, rages on between the demon and humans. The line between good and evil has blurred, a mystery to one's mind. Demons are vile, vicious beasts. But then again, humans aren't much different. Anna, a normal village girl is dragged into this war at a young age when her village is attacked by demons. She manages to escape with a few others. The most unexpected people betray them, and others join them... some even fall in forbidden love. Will a few teens be able to stop this war? Or are they all doomed to a war that will last for eternity?
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.