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Once upon a time, a mermaid fell in love with a human prince. When his ship was lost in a storm, she brought him to the nearest shore. But when the prince opened his eyes, he saw another girl, and believed she to be his savior.

This other woman, Viola, has no interest in marrying this man. But nobility means obligation and duty, and so she's resigned to a loveless marriage to a man she wishes she'd never met.

But Prince Edvard has brought a mute woman named Pearl along with him... a mute woman who seems ethereal, unlike anyone Viola has ever met before.