One wedding. One massacre. One debt that can only be paid in blood.Elara Vance was supposed to marry a prince to save her father’s empire. Instead, she watched her groom flee as a monster walked through the chapel smoke. Adrian Volkov didn't come for the guest list. He came for the collateral.Now, Elara is trapped in a mountain fortress of marble and secrets, owned by a man who views her as a strategic acquisition. Adrian is cold, ruthless, and determined to break the one thing his billions couldn't buy: her defiance. But as the Rossi family hunts her and her own blood betrays her, the walls of her gilded cage become her only protection.In a world where everyone has a price, can she survive being the billionaire’s most dangerous possession?