The Mermaid Princess They Betrayed

Ella senses the Dark Tide but is a tool. After saving Cedric, she's deceived by jealous Vivian on their wedding eve. Pushed into the Dark Tide, she's rescued by Ronan, the pirate king she saved. Ronan frees her; they expose the conspiracy to control the ocean. Awakening her Dark Tide power, Ella commands Ronan's fleet, becoming the Dark Tide Queen.