Many humans, in an abundance of numbers. A few unicorns, extremely rare in sighting. But there has only been one individual of both worlds to exist. Caramel is not quite human, and not quite unicorn. Living alone in the grotto her herd once roamed in is all she knows what to do for sure. But one night, when a wolf sings the tale of the ferocious Red Dragon that chased all the unicorns away , Caramel embarks on a journey to find her lost half with the help of the other. Joined by the wizard Navy, rogue queen Clair, and prince Nitroz, the young hybrid encounters a circus warlock, a band of thieves, and even the Red Dragon itself. However, the greatest danger lies at the end of the trail, where she may find something darker behind the disappearance of the unicorns than the Red Dragon...or rather its involvement in the true plot.
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.