Isla and Sophie have been the best of friends for as long as they can remember. They're close enough that they are like sisters to each other. But when they turn 14, they find out they might actually be.
Isla and Sophie have been living the normal teenage girl life. Sleepovers, boys, drama, secretly being sisters who turn out to be magical creatures, traveling to a different realm, meeting more magical creatures, overthrowing their evil uncle, saving people, and finding their birth parents. Just the normal stuff.
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.