Tail of the Sea (Ravens of the Mist Series)

Madison used to be on her own, living in the water near an island where, from time to time, she would walk near the water of the sea. She's a mystical creature known as a mermaid. Because of the sea, her heart had been cold, until a mysterious man appeared out of nowhere. Henry has a secret, and now that he has learned more about her, he doesn't have the will or the power to execute the reason he came here in the first place. When she discovers his secret and what he represents, will she stay by his side or escape him?