The Losers Club-Stella, her twin brother Owen, Lainey, Cole, and Emma-spend the summer at a creaky old shore house belonging to Lainey's . At family first, it feels like a normal getaway: beach days, salt air, and board games during the evening. But strange events start almost immediately. They meet a boy named George, who seems friendly enough... until they spot his face in a black-and-white photograph from 1892, marked as a child who went missing.
George never seems wet after swimming, and he appears and disappears on the beach without leaving footprints. The group begins to suspect he isn't just a local kid-he's a ghost, tied to something deep in the water.