 The Golden Crown mine is being re-opened for the first time since 1902. The mine has a reputation for being unsafe. Mike is the only one who sees a mysterious man clad in black waistcoat and top hat driving a horse and buggy and calling himself a doctor. The man repeatedly warns Mike that there will be a terrible accident at the mine. The doctor carries a pocket watch that plays The Skye Boat Song when opened. There is indeed an explosion at the mine which traps two men inside. The doctor appears and leads Mike to another entrance. The doctor goes inside while Mike summons help. Sgt Stewart and Sullivan save the trapped men, but there is no sign of the doctor. Sullivan found an old watch in the mine and gives it to Sgt Stewart who opens it at Mike s urging. The watch plays The Skye Boat Song.