Previously, the ship captain had introduced Jimmy and Clark to Mr Barnaby, a one legged man. Barnaby has mysteriously been able to round up a full crew for the ship despite the original crew walking off. The voyage begins. Barnaby seems strange, but Clark can’t put his finger on what it is. They are told a tale about a whistling ghost that makes itself known by its audible presence, but there’s not much time to consider the truth behind the story, when the captain has been pushed overboard, and rescued by Superman.