Freya hates her life and it got worse after her best and only friend, Phoenix was found mysteriously dead. She begins to notices weird things happening to her: mirrors floating in the middle of the ocean and the forest that no one else seems to see, having vivid dreams turning into nightmares that are coming true. When she goes toward the mirror she gets teleported into a completely different world, but things aren't right. She meets Echo, a girl with a bad temper and the personality of a velocoraptor, who stumbles upon Freya who is hurt and unconscious, but when Freya wakes she recognises Echo but can't quite remember where from. She meets amazing people along her journey to help her find her way back home, but in the end does she really want to go back?
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.