A Princess of Wind and Wave — Melanie Cellier

Isla may be a mermaid princess, but she's never felt at home in her undersea kingdom. Instead she dreams of the day her people can return to the surface -- and the boy whose life she once saved. But while Isla foresees danger for her people beneath the ocean, she has no concept of the dark forces working to keep her people submerged.
When an impetuous vow sets her on the course of the truth, Isla discovers that shadowy foes beset the kingdoms of both land and sea. And when she finally finds herself onshore, Isla realizes the fight will require not only her sword but her mind and heart as well -- at least if she ever hopes to overcome her enemies and win the love of the prince of her dreams.
In this reimagining of the classic fairy tale, The Little Mermaid, the princess will have to grow beyond her dreams if she wants to save two kingdoms and her own heart.
If you enjoy clean romance, adventure, and intrigue, then try the books in the Beyond the Four Kingdoms series now! These interconnected fairy tale retellings each feature a different princess who has to fight for her happily ever after.
Beyond the Four Kingdoms reading order:

A Dance of Silver and Shadow: A Retelling of The Twelve Dancing Princesses

A Tale of Beauty and Beast: A Retelling of Beauty and the Beast

A Crown of Snow and Ice: A Retelling of The Snow Queen

A Dream of Ebony and White: A Retelling of Snow White

A Captive of Wing and Feather: A Retelling of Swan Lake

A Princess of Wind and Wave: A Retelling of The Little Mermaid