This book starts after The Tower of Nero in The Trials of Apollo. Most of everything is the same, apart from a few small things. Also I have Harry Potter in this, but it doesn't came for a while yet. I hope someone reads!
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.