The sea keeps every secret. Some were never meant to surface. For twelve years, Olivera has lived with the pain of her mother’s mysterious disappearance. In the quiet fishing village of Harrow Cove, she has learned to live without answers—until the sea begins to change. When a strange black tide rises and a mysterious silver mark appears on her palm, Olivera discovers that her mother’s disappearance is tied to an ancient kingdom, forgotten magic, and a throne she was never meant to inherit. Hunted by a ruthless ruler and tempted by a mysterious force promising to return her mother, Olivera must uncover the truth about her past before the darkness beneath the waves destroys everything she loves. But the sea always demands a price. The storm is coming. The throne is waiting. And the sea has chosen its heir. Will Olivera save her world—or lose everything trying to bring her mother home?