'Once a stranger enters the valley of the mysterious "white master," he is never allowed to go out again' (3).
While Dorrie sets out from Sydney to locate the missing boys, the St. Frank's chums discover that the valley is filled with gold, and that the 'white master' is actually the estranged father of Clapson, one of their group. Reunited with his son, Clapson has a renewed sense of living and allows the St. Frank's boys to depart, just in time to meet up with Dorrie and his rescue party.