Arthur Kingsley Porter, (1883 1933) renowned American, Harvard professor and owner of Glenveagh Castle, vanished without trace from Inishbofin Island, Co. Donegal, in 1933. No trace of the professor was ever found. Over the decades stories of Porter's disappearance turned into legend. A strong swimmer and always fond of the outdoors, was it likely that Porter had been drowned by misadventure or was foul play involved? Perhaps Porter took off alone to pursue new adventures? By the late 1920s...