Aria was sold to pay her family's debt - forced to replace her sister and marry cold billionaire Damian Blackwood. The rules: 1. Be his hidden wife. 2. No one must know she exists. 3. Never fall in love. To the world, he is single and ruthless. Behind closed doors, he is obsessed with her. She is his secret. His hidden bride. She wants to escape. He won't let her go. "You are mine, Amara. Even if the world doesn't know it."