“The kind of adventure story every boy loves! Two boys and their tutor, after a hairs-breadth escape from the murderous plans of a European dictator, flee to South America – and pit their wits and spirits against the forces of Nature, to live a Robinson Crusoe-like existence somewhere in the danger-infested jungles of the upper Amazon!”
– Boy’s Life magazine advert, ‘Adventure books for red-blooded boys’, December 1942
