Having lost his memories, Rylan Cove wakes up in Melusine - only to realise that he too has been forgotten by the entire town. Except for two people - Eirlys Winter, runaway daughter of one of the richest families in Melusine and Lady Nuria - who claim to be the only ones who remember him, and that he was the hero of the town before vanishing without a trace two years ago.
Strange incidents, ranging from malfunctioning equipment to the disappearance of magic users come to light as Rylan tries to find his place in the world again, and a conspiracy shows itself. When a certain mission to an underground sewer network goes wrong, he is confronted with a choice - either to face the horrors of his past head on, or to retreat back to the safety of the present.
And when these strange incidents start hitting too close to home, Rylan decides to investigate.
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.