In the city of Aethel-Gard, heat is a luxury, silence is a weapon, and mercy is a death sentence. Kaelen Thaw is the Glacier King. As the Alpha of the Obsidian Rift, he is a man carved from permafrost and absolute power. He doesn't feel. He doesn't love. He only siphons . To keep his city alive, he must drain the life-force of the weak. And he has just found his ultimate battery. Nyxine Solari is an Empyrean Flare—a creature of raw fire and forbidden light. Sold to the Glacier King to save her people, she expects an execution. Instead, she finds a gilded cage in the Sun-Glass Tower and a master who looks at her with a hunger that isn't just about power. Kaelen claims he only wants her "resonance" to stabilize the Rift. But the way his touch lingers, the way he cages her with his body, and the way his ice melts against her fire tells a different story. His mercy is a lie. His passion is a prison. As a dark revolution brews in the Sub-Basin and the Council demands her blood, Nyxine must decide: Is Kaelen the monster the world fears, or is he the only man capable of burning it all down to keep her safe? In a world of absolute zero, their love is the only thing that burns.