In the thin November fog off the coast of Maine, Luna rows to the abandoned Port Blossom lighthouse—shuttered since 1987. Inside, she finds the logbook of the last keeper, Elias Voss. His early entries catalogue routine maintenance and storm damage. Then, on a moonless night, he begins to note a second beam of light out on the water, opposite the lighthouse tower. A light with no source, no charted buoy, no explanation. As his entries grow shorter and more frantic, the light seems to answer the lighthouse's sweep—pulsing in counter-rhythm. By the final entry, he writes only six words. Luna closes the log and looks out the salt-crusted window. Beyond the fog, impossible and steady, that same pale glow hangs where no light should be. A quiet horror about solitude, obsession, and the things that blink back.