The Disappearing Floor
| Publisher | Grosset & Dunlap |
| Series | The Hardy Boys |
| Publisher Series | Hardy Boys Mystery Stories |
| Format | Hardback |
| Language | English |
| Location | New York |
| Copyright | 1964 |
| Pages / Font | 176 pages |
| ISBN | 0-448-08919-4 |
| Series Number | 19 |
| Other | 18919 |
| Notes | Light Blue Cover, Library Edition |
Added by jlkrien · Last edited by Anaideia