For her research, Mira Hale approaches Auren as if he were a lonely deep-sea merman, never realizing the powerful Siren has already claimed her as his mate. She even teaches him a courtship song and dance—until the truth of what he is drives her to flee. Auren answers by taking her to a remote island, where Mira begins to change and long-buried childhood memories return. One revealed secret after another points to the same truth: Auren saved her once before. Now Mira must face a choice between the human life she knows and the Siren who may have been part of her fate all along.