Theo chose to fall for Yuri.
Seeking refuge from the shadows of the Fracture in the King's moving castle, Theo kept himself away from the world and all its darkness. But everything changed when Yuri arrived and brought warmth to Theo's heart. When Yuri's life is threatened and the only option is for Theo to become a scion to the Morningstar or lose Yuri forever, Theo chooses love over duty.
As Yuri's power grows, Fae forests awaken and magic runs wild. Yuri's Incubi lover, Lucian, finds himself in a curious world of cotton candy trees and fluffy murder balls, while Yuri and Theo search for whispers of the Fallen, and a way to free the Morningstar.
Enemies rise as Yuri's existence is discovered, the legends spawn fear of total destruction. Can an angel in the middle of his fall, a broken ice prince, and a demon bound in the darkness find a way to save Yuri from the blade set to fall?