He wasn't supposed to be here. The platform had been condemned since the Wende—the fall of the Wall—but Jonas had a key. His grandfather, Erich Braun, had been the last official photographer of the GDR’s National Park Service. When Erich died last spring, he left Jonas a leather pouch, a rusted key, and a single sentence scribbled on a napkin: “The register knows what the map forgot.”

Jonas opened it.

The first photo: a clearing that didn’t exist on any modern map. The second: a stone circle with shadows falling the wrong way—northward at noon. The third: a woman in a yellow coat, facing away from the camera, standing at the edge of a cliff Jonas knew had crumbled into the river in 1987.