A King with a frozen heart. A girl born of prophecy. A bond so volatile that a single touch would turn her to ash. Kael Nightborne is the King of Alphas—a title carved from the bones of a thousand rivals. For three centuries, he has ruled from the Obsidian Spire, waiting for a myth to draw breath. Under the gore-red light of the Blood Moon, the prophecy is finally born: the Rare Blood has arrived. But the Moon is cruel. To claim his mate is to kill her. To even step within her borders is to shatter her fragile soul with the weight of his primal power. Bound by a divine decree of isolation, Kael is sentenced to twenty years of silence. He cannot see her face, he cannot scent her skin, and he cannot even whisper her name. While she grows up in a world unaware of her true nature, Kael becomes a monster in the dark. He will spend two decades purging the earth of every threat and building a kingdom of shadows, all while enduring the agonizing hum of a bond he is forbidden to answer. The clock is ticking. The King is waiting. And when the twentieth year finally bleeds into the night, Kael won't just find her. He will tear the world apart to claim the woman he was forced to abandon.