What would life be like for a mermaid condemned to live at the surface? Marielle and her sister Edlyn are the heirs of the kingdom of Aquamarine, a country of merfolk ruled by the tyrannical Queen Molgale. Known by the human kingdoms that border hers as the Sea Witch, the Queen rules with an iron fist and isn't afraid to destroy anyone who wanders into her waters. Not even her children are safe from her wrath. Alexander and Lysander, the twin princes of Calchester, have suffered under the sea witch's curse for eleven long months. With only thirty days left before the curse becomes permanent and still no solution in sight, the twins must set out to find a way to restore their kingdom to its former glory. When the twins' first encounter with the sea witch almost results in their deaths, Marielle protects them at the cost of her future. She's cast out of Aquamarine and cursed to live the rest of her days as a human. Can Marielle help the twins to break her mother's without revealing who she truly is?