They say you only live once, if we only live once, so will the Earth. In Greek Mythology times, the Book of Destiny was created to tell the future of our beloved Earth. This book then slips away journeying into the Earth waiting to be found. When research biologists find the book, they are astonished with the prediction of the near future and say the Earth will die. But with Earth as the only planet still alive, they have to find a way by protecting it. The Fate of the Earth lies in the Book of Destiny.
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.