In late March of nineteen twenty-two, a single set of footprints appeared in the fresh snow, leading directly to a remote Bavarian farmhouse called Hinterkaifeck. But there were no tracks leading away. Inside, a family had been growing uneasy. For days, they heard strange footsteps in the attic. A set of house keys vanished from its hook. An unfamiliar newspaper appeared on their porch, one the...
