A Little Persuaded: The Little Mermaid needs a bit of Persuasion

Seven years ago, mermaid princess Enna gave up the human prince she loved because it seemed impossible for them to be together. However, a storm and a mysterious stone column have brought him back into her life, and now she must venture among the humans in order to learn how to save her people.

But all is not as it seems and enemies might be hiding in plain sight. And can Enna keep her heart safe when she must guard it against the very one who stole it before?