The Secret Panel
| Publisher Series | Hardy Boys Mystery Stories |
| Series | The Hardy Boys |
| Publisher | Grosset & Dunlap, Inc. |
| Format | Hardback |
| Copyright | 1946 |
| Copyright | 1969 |
| Library of Congress Call Number | 74-86693 |
| Series Number | 25 |
| ISBN | 0-448-08925-4 |
Added by miketaylor81