Clarence Young's 'The Motor Boys Over the Rockies; Or, A Mystery of the Air' is a thrilling tale of adventure and mystery set in the early 20th century. The book follows the daring exploits of three young protagonists as they navigate the treacherous Rocky Mountains in pursuit of a mysterious airship. Young's writing style is brisk and engaging, filled with vivid descriptions that bring the wilderness of the Rockies to life. This book is a prime example of early 20th-century boys' adventure literature, popularized by authors like Jules Verne and Mark Twain. The Motor Boys series was a favorite among young readers of the time, known for its exciting plots and relatable characters. Clarence Young's background as a journalist and keen interest in technology likely influenced the themes of aviation and exploration that run throughout the book. Overall, 'The Motor Boys Over the Rockies' is a captivating read that will appeal to fans of adventure stories and early 20th-century literature.

The Motor Boys were the heroes of a popular series of adventure books for boys at the turn of the 20th century issued by the Stratemeyer Syndicate under the pseudonym of Clarence Young.

When Jerry, Ned and Bob returned from an automobile ride one day, and saw a great crowd around the railroad station of their home town, they were somewhat excited. They were made more so when they saw Jim Nestor, the foreman of the mine in which they held an interest, and another Westerner, wildly digging on the tracks. And when they heard the murmurs of "gold," they did not know what to think. And from then on they were involved in happenings that did not cease when they set out to recover the sixty nuggets, so strangely hidden on the border. Though the gold on the railroad tracks did not amount to much, the other pocket of the precious yellow metal did, as you will learn in the pages that follow. In this book you may also read of the search Professor Snodgrass made for some luminous snakes, and how he found them; and I have also taken pleasure in writing for you an account of how Noddy Nixon tried to get away from the motor boys the gold they worked so hard for, and how our heroes braved even the perils of a band of Blackfeet Indians, who had escaped from their reservation.