Inara Baxter isn't an ordinary kid. She's Ingenium, a person with special abilities. She can draw energy from all four Ingenium divisions: earth, shadow, light, and time, based on her emotions. She's a Polymath. As cool as it sounds, she's been genetically enhanced by a mysterious group of rebels. They use her as their weapon to take down the Assembly, the Ingenium's government. Every day they've come closer to controlling her, full-time. From hallucinations to hour-long blackouts, it's clear to Inara that she's not safe anymore.
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.