Project Gutenberg 2015-10-09 Public domain in the USA. 140 Walton, Frank Davis, J. Watson 1870 1959 Davis, John Watson The Flying Machine Boys on Duty; Or, The Clue Above the Clouds E-text prepared by Stephen Hutcheson, Rick Morris, and the Online Distributed Proofreading Team "The Flying Machine Boys on Duty; Or, The Clue Above the Clouds" by Frank Walton is a fictional adventure novel written in the early 20th century. It follows a group of young aviators, specifically James Stuart, Ben Whitcomb, and Carl Nichols, as they embark on a mission to track down two notorious criminals after a bank heist and murder. With excitement in the air, the boys utilize their flying machines to traverse the dangers they face against both human adversaries and the challenges of flight. At the start of the story, we meet a young aviator flying over New York Bay who encounters a bothersome pursuer in another aircraft. After a defensive duel of skill in the skies, he returns to a hangar where he meets up with his friends. They are soon drawn into a conversation about a commission from the police to find the criminals behind a bank robbery and murder, believed to have fled to a mountainous region on the Pacific coast. As they prepare for their journey, hints are dropped of underlying threats from the criminals' associates, foreshadowing tension and adventure in their quest. The beginning sets up a gripping narrative filled with aerial pursuit, danger, and the camaraderie of youth united against crime. (This is an automatically generated summary.) Reading ease score: 81.4 (6th grade). Easy to read. en Mystery and detective stories Aeronautics -- Juvenile fiction PZ Text Category: Children & Young Adult Reading Category: Crime, Thrillers and Mystery Category: Adventure Category: Novels Category: American Literature 377251 2025-07-20T06:46:40.006294 text/html 356436 2024-10-22T23:14:46 text/html 400263 2025-07-20T06:46:45.734230 application/epub+zip 397226 2025-07-20T06:46:40.973240 application/epub+zip 208443 2025-07-20T06:46:40.491270 application/epub+zip 490328 2025-07-20T06:46:49.231165 application/x-mobipocket-ebook 459110 2025-07-20T06:46:45.228212 application/x-mobipocket-ebook 270627 2022-09-22T16:43:36.829828 application/x-mobipocket-ebook 317118 2025-07-20T06:46:39.077226 text/plain; charset=us-ascii 297115 2024-10-22T23:14:46 text/plain; charset=us-ascii 18019 2025-07-20T06:46:49.363160 application/rdf+xml 30675 2025-07-20T06:46:40.574258 image/jpeg 4153 2025-07-20T06:46:40.533235 image/jpeg 354173 2025-07-20T06:46:40.040255 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog