In the small coastal town of Greyhaven, the sea is never quiet. It whispers between the dunes, whispers from the windows, and carries the voices of those who call it home.

Seventeen-year-old Mara Raine has always been drawn to those whispers. Since her father drowned years ago, the sound of the tide has been different—closer, almost human. When she discovers a seashell that echoes its sound, Mara begins to uncover a painful truth: the sea doesn't just take the dead, it keeps them.

As the ghostly voices grow louder with each rising tide and the bodies of the drowned surface beneath the sea, Mara must confront the bond between the living and the lost. With the help of Eli, a quiet boy marked by his own tragedy, she heads toward the Tidal Gate, where memory and water meet—and where a terrible choice awaits.

To silence the sea, she must decide what she will allow it to take.

Because in Greyhaven, the ocean remembers everything.