The Crown of the Abyss: The Mute Bride of Atlantis

Lilith is the daughter of a siren, and at thirteen she gave up her voice to protect the three pirates who had raised her. Her silence becomes the price she pays for their safety, shaping every choice she makes in a world where the sea holds ancient power. The bargain that saved her foster family also ties her future to the depths of Atlantis, and the cost of that promise begins to weigh on her.