Crown Of Coral And Pearl by Mara Rutherford

In a world where the ocean is both a source of life and a barrier, two sisters from the impoverished village of Varenia are bound by tradition and rivalry. Each generation, the most beautiful girl is chosen to marry the prince of the mainland kingdom, Ilara, a fate that promises wealth and security. When the spirited and adventurous Nor is unexpectedly thrust into this role, she must navigate the treacherous court politics, uncover hidden secrets, and confront her own desires, all while grappling with the bonds of sisterhood and the weight of destiny.

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