The Disappearing Floor
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| Author | Franklin W. Dixon |
|---|---|
| Series | The Hardy Boys |
| Genre(s) | Children's literature/Young adult literature |
| Publisher | Grosset And Dunlap |
| Released | May 1, 1940 |
| Pages | 192 |
| ISBN | ISBN 0-448-08919-X |
| Preceded by | The Twisted Claw |
| Followed by | The Mystery of the Flying Express |
The Disappearing Floor is Volume 19 in the original Hardy Boys book series published by Grosset And Dunlap.
While Frank and Joe help their father locate a notorious jewel thief, they also explore the mysterious death of a tycoon's nephew years before.
