June 1998, Flagstone Ford, West Virginia — a stretch of creek where the water runs clear over limestone and the sound of something scraping against rock never quite stops. Luna's uncle told her about the boy who drowned there in '72, the one they never found, and the game the local kids played afterward: drop a stone in the water at midnight, wait for the splash back. She went there herself one summer, alone, with a pocketful of pebbles. What she heard that night wasn't an echo. And what she saw at the bottom of the creek, when the moon came out from behind the clouds, is something she still wakes up thinking about. A quiet, waterlogged horror story about grief, memory, and the things that wait under the surface.