Théodore Labbé — Lighthouse Keeper's Assistant Found Dead, Island Completely Isolated

The Flannan Isles lighthouse disappearance of 1900 is the most famous of several lighthouse vanishing cases, but the disappearance of Robert Labbé at a French lighthouse in 1913 adds another layer of maritime mystery to the genre. On the Île de Sein off the coast of Brittany, a lighthouse assistant was found dead under unexplained circumstances, his colleague having apparently fled the isolated island without explanation, leaving behind all personal effects and supplies. The island was genuinely unreachable for several days due to weather, and when a supply boat finally arrived, investigators found one man dead and one man missing with no explanation apparent. The missing man was a trained lighthouse keeper with years of experience on isolated postings — not someone prone to panic or desertion. Lighthouses of the 19th and early 20th centuries were sites of repeated strange disappearances and deaths, particularly at isolated offshore stations. The combination of extreme isolation, disturbed sleep cycles due to light-keeping duties, and the psychological stress of confinement on rocks far from land created conditions that may explain some incidents through mundane means — but not all of them. The pattern of lighthouse keeper disappearances across France, Britain, and Scotland remains a documented historical phenomenon without comprehensive explanation.