The Mystery of the Flying Express

Mystery of the Flying Express
Original edition
AuthorFranklin W. Dixon
IllustratorPaul Luane
LanguageEnglish
SeriesHardy Boys
GenreDetective, mystery
PublisherGrosset & Dunlap
Publication date
January 1, 1941
Publication placeUnited States
Media typePrint (hardback & paperback)
Pages192 pp
Preceded byThe Disappearing Floor 
Followed byThe Clue of the Broken Blade 

The Mystery of the Flying Express is Volume 20 in the original The Hardy Boys Mystery Stories published by Grosset & Dunlap.

This book was written for the Stratemeyer Syndicate by John Button in 1941. Between 1959 and 1973 the first 38 volumes of this series were systematically revised as part of a project directed by Harriet Adams, Edward Stratemeyer's daughter. The original version of this book was rewritten in 1970 by Vincent Buranelli and retitled to Mystery of the Flying Express.

Because of Dr. John Button's death in 1967, The Mystery Of The Flying Express (1941) entered the Canadian Public Domain on January 1, 2017.