She built a fortress of power to hide her true nature. Now, she’s the prisoner of the one woman who can tear it all down.

Carys Vance is a CEO. An Ice Queen. A titan of industry who built her empire to escape her own biology. Her secret is a congenital disease she medicates with illegal, black-market suppressants: she’s an Omega. In a world where her kind are seen as property, her meticulously controlled life is her only defense.

But when a corporate rival’s treachery causes her suppressants to fail at a high-stakes gala, her secret is unleashed in a wave of scent that draws every predator in the room.

Her savior is the last person she would ever expect. Vexia is the monstrous Alpha enforcer of the Chthonian clan, an ancient warrior whose people were once enslaved by Carys's ancestors. Acting on instinct and duty, Vexia abducts Carys from the chaos, imprisoning her deep within a subterranean enclave. She sees Carys not as a woman, but as a political weapon—and the hated symbol of her people's oppression.

Forced together, they are bound by more than stone walls. They are fated mates, a biological truth that revolts them both. But when assassins breach the Chthonian fortress, it becomes clear that Carys is the target of a conspiracy that runs deeper than their ancestral hatred. A plot that could enslave every Alpha in their world.

To survive, they must forge an alliance. An Omega whose greatest weapon is her mind, and an Alpha whose body is a weapon. They are each other’s worst enemy and only hope. Trapped between a primal, undeniable bond and a world that wants to tear them apart, they must discover what is more dangerous: the conspiracy hunting them, or the savage, untamed passion igniting between them.

Obsidian Heart is a full-length, standalone Paranormal Sapphic Omegaverse Romance. This dark and suspenseful novel is packed with world-building, high-stakes action, and a slow-burn, enemies-to-lovers romance that builds to a happily ever after. Perfect for fans of monstrous love interests, powerful heroines, and a story where the greatest weakness becomes the most devastating weapon. This book features spicy, high-heat, open-door scenes intended for a mature audience.