The mystery immediately burrowed into the public consciousness thanks to the many weird details surrounding it. In addition to the actual disappearance, there was an uneaten meal still on the kitchen table, suggesting whatever had happened to them was extremely swift and unexpected. This was further supported by the fact that, although the weather during the men's disappearance had been horrible, one of them had left his oilskins -- weatherproof outerwear -- inside the lighthouse.
Even today, many consider the Flannan Isle case one of the most enticing disappearance mysteries. It has inspired books, songs, poems, and even a Doctor Who episode. Over the years, people have attempted to explain the events with theories ranging from murder schemes, ghost ship abductions, and sea monsters to saner but equally unlikely ones about the whole scenario being an elaborate escape from the job by the three men (because, uh, a regular "I quit" is just too conventional for some people?). I'm not even going to visit the more far-fetched ones about wormholes and people being turned to sea birds by evil spirits, but rest assured they are out there.