On the eve of her arranged marriage, Princess Lyra is bound to the Tidal Tithe, a ritual demanding the sacrifice of a human heart. But before the offering can be made, she is stolen away by a rival kingdom. Torn from the sea, Lyra enters into a dangerous bargain to appease ancient magic unraveling around her. Her only ally? The enemy she was foretold to hate. As treachery deepens and tides rise, Lyra must choose: obey the rules of her kingdom, or seize the forbidden magic hidden within her voice—and risk everything to change the tides. A story of sacrifice, rebellion, and love as fierce as the sea itself.