Fallon was never quite normal. Despite being a model student, minus her athletic abilities and sarcasm, she has never been popular. Instead of turning to friends (not like she has any) or sports, or social media for comfort, she turns to books. Reading and writing have become her escape. As a child, she finds and old, tattered book and begins writing in it. She doesn't think anything of it, but when people suspiciously similar to the characters she has written about begin showing up after she turns thirteen, she is dragged headfirst into a whole new conflict involving everything from fictional characters to humanity's darkest secrets.
Now, Fallon must team up with characters she created long ago and unite two worlds in the hopes of preventing a catastrophic destruction of reality. Things can never be simple for teenagers, can they?
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.