Earth is divided between two magical realms; the fire realm, and the ice realm. Both realms are secret to outsiders, who don't realize magic exists. Tara though, like any other normal teenage girl, doesn't believe in magic. That is, until a fateful event happened. She learns that she can produce both fire and ice magic, which hasn't happened in centuries. But that isn't a good thing if both realms are in the middle of war. Tara needs to find out which side she will take, fire or ice, or if she'll even choose a side at all. Will she restore peace...or will she just make everything worse?
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.