Don Sturdy Books in Order

Don Sturdy and his uncles join an aerial expedition across the North Pole. A severe blizzard threatens their airship, turning the journey into a struggle with Arctic weather where staying aloft and finding safety become immediate concerns.

Don accompanies his uncles to Alaska to collect specimens and geological samples in the Valley of Ten Thousand Smokes. Their scientific expedition takes them through volcanic country, where difficult terrain and natural hazards challenge the young explorer.

A cable from Egypt brings news that Don's father has vanished while pursuing the Tombs of Gold. Don and his uncles travel to investigate, entering a search that leads toward ancient burial places and a family's unresolved mystery.

Don Sturdy travels through the Sahara with his uncles, one a hunter and the other a scientist. Their motor expedition encounters dangerous wildlife and hostile people, requiring the young adventurer to face hazards beyond ordinary travel.

Don accompanies his uncle into the Amazon region to capture large South American snakes alive. The unusual commission requires more than successful hunting, as the expedition must handle powerful reptiles while navigating the dangers of the jungle.

Don explores the Sargasso Sea in a maritime adventure involving derelict vessels and dangerous wildlife. Ship collisions, sharks and a floating mass of seaweed repeatedly threaten his safety, turning exploration into a succession of urgent survival problems.

During an African adventure, Don Sturdy is swept over a major waterfall into territory inhabited by gorillas. Separated by the sudden disaster, the young explorer must confront the dangers of an unfamiliar jungle far from ordinary help.

Don and his traveling party are wrecked in Borneo, leaving them stranded in unfamiliar country. Encounters with local head hunters turn the interruption into a dangerous adventure, testing the young explorer's ability to cope with captivity and escape.

Don and his uncles organize an African expedition to capture unusually large lions alive. Their search places the young adventurer close to dangerous animals, making each encounter a test of hunting skill, caution and teamwork.

Don, Teddy, and their companions travel into Central America's jungles seeking the legendary Temples of Fear. Storms, dangerous wildlife, and warnings about human sacrifice turn the search for a lost Maya civilization into a perilous expedition.

Don and his companions join a whaling ship for an ocean adventure entangled with crime. Alongside the dangers of the voyage, a boy's struggle to prove himself adds personal tension to the expedition's troubles at sea.