Locked Deep: The Siren Falls

Sinopsis

Biologist Lena is stranded on Pelagia-9 after her husband steals her research. She mistakes siren Kael for a merman and teaches him courtship, making him claim her, dragging her underwater to turn her into his own. Lena later learns he saved her as a child and waited sixteen years. When rescuers come, will she flee or stay with him?