According to prophecy, the ruby comet shooting across the sky signifies the dawn of darkness. A pact between a mysterious entity with The Demon Lord, Sanheim, will unleash a legion of undead and demons throughout the lands. Salvation, for the people of the city of Asteria, lies in the belief that a hero chosen by The Great Mother, the goddess of life, will rise to unveil the source behind the corruption and destroy the evil unleashed. A light in the darkness, hope is all that remains.
In a world where unauthorized magic is penalized by death, Juno and his twin sister, Lucia, are lucky to be recognized for their unique abilities in combat and holy magic. They're plucked from the streets of Asteria's bottom tier and thrust inside the walls of the Holy Temple, narrowly escaping demise. For eight years, Juno is trained as a Holy Knight while Lucia learns to perfect the art of holy magic, after being declared the prophesied priestess destined to vanquish Sanheim. Yet, shadows loom in the halls and deceit runs afoul.
Juno and Lucia are left to question their faith, and everything they know as truth, when the rebellious leader Kane, a descendant of an opposing royal bloodline, threatens to usurp the church on the grounds that its overseers are not as virtuous as they claim to be.
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.