A grand library filled with information that could possibly destroy the "Real World", universes within each page, betrayal of whom they trust.
Bellerose Meia is a 15-year-old girl who isn't just the "Girl Who Got into a Car Accident" or "The Girl Who Lost Her Mother", she is something more than that. She has changed a lot for 4 months, but getting a job at the Whispering Willows Library won't help bring her back to "normal." In fact, it leads to something that she will not be able to forget; whether she wants to or not.
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.