The Hidden Harbor Mystery
| Format | Hardback |
| Language | English |
| Copyright | 1935 |
| Author | Franklin W. Dixon |
| Publisher | Grosset & Dunlap |
| Publisher Series | Hardy Boys Mystery Stories |
| Series | The Hardy Boys |
| Format | Hardback |
| Language | English |
| Location | New York |
| Copyright | 1935 |
| Pages / Font | 219 pages |
Added by jlkrien