A detailed review and analysis of evidence presented before the Australian Marine Inquiry investigating the cause of the wartime Collision between the minesweeper HMAS Goorangai and the passenger liner S.S. Duntroon at Port Phillip on November 20, 1940. With 300 pages and over 100 photographs, maps and explanatory diagrams, the authors seek an explanation to this tragic event leading to the loss of the entire Goorangai crew.