The second instalment of the adventures of the St Frank's school chums on their trip to Australia. When the School Ship makes a brief stop in Durban Harbour, South Africa, the boys help Nelson Lee, the 'famous schoolmaster-detective', to rescue a stranded airman, discover the mystery of Vanhoek's ostrich farm, and capture train bandits. A small group of the boys has to find an alternative mode of travel to Adelaide.
Also includes an article on the cricket test matches between England and Australia, and letter from the author to his readers.