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For the revised edition of this book, see The Disappearing Floor (revised text).

The Disappearing Floor
Ghostwriter John Button[1]
Outline Edna C. Stratemeyer[1]
Publication information
Publisher Grosset & Dunlap
Producer The Stratemeyer Syndicate
Publication date 1940
Media type Book (Hardcover)
Pages 218
Series The Hardy Boys
Preceded by The Twisted Claw
Followed by The Mystery of the Flying Express


The Disappearing Floor is the 19th book in The Hardy Boys series. It was first published in 1940 by Grosset & Dunlap.

Publication history

to be added.

Plot summary

The Hardys track down a gang of bank robbers to an old mansion filled with curious inventions.


This list is incomplete, you can help The Hardy Boys Wiki by expanding it.



to be added.

Businesses and organizations

to be added.


to be added.


to be added.


  1. 1.0 1.1 Who Wrote the Hardy Boys? at

External links

to be added.

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