Airplane Boys Discover the Secrets of Cuzco

The narrative follows Bob Caldwell and Jim Austin, members of a youthful flying partnership, as they obtain a new airplane called the Lark and undertake a sequence of aerial adventures that include engine fires, narrow escapes, a stowaway, midair combat, and a journey to the Peruvian highlands around Cuzco. Interwoven are scenes on frontier ranches, encounters with outlaws and lawmen, scientific curiosities from a nearby laboratory, and problem-solving that tests their courage and skill. The book proceeds episodically through a dozen chapters, mixing action, mystery, and aviation detail aimed at energetic, technically curious readers.