Haleigh Sallow has always felt the ocean pulling at her bones, but she never imagined it would answer back. After a mysterious night on Mako Island, her life fractures into secrets, saltwater, and moonlit transformations. Balancing school, family, and the dangerous truth of being a mermaid becomes even more complicated when Atlas Warner enters her life—quiet, loyal, and unknowingly tethered to her secret in ways that could change everything. Their slow-burn connection is filled with unspoken tension, stolen glances, and the fear that loving him might be the one thing she can’t protect him from.