With Zentropolis on the brink of collapse, a more dangerous foe enters the fray: Umbra, the leader of the Abyss, a being forged from darkness itself. Umbra seeks not just the destruction of the city but the eternal eclipse of the entire world. His power is vast, and Lyria struggles to find a way to even hurt him. She is forced into a brutal confrontation in the heart of the city, with devastating consequences.