Frank and Joe race against time to retrieve a scientist’s top-secret invention before thieves get their hands on it. But the young detectives soon discover that they are involved in a mystery far greater in scope than just safeguarding the invention. When Joe is kidnapped, this incident starts Frank of on a chase that could end disastrously for him and his pals.
| ISBN-13: | 9780448089102 |
| ISBN-10: | 0448089106 |
| Publisher: | Penguin Young Readers Group |
| Publication date: | 1931-05-01 |
| Edition description: | Reprint |
| Pages: | 192 |
| Product dimensions: | Height: 0.9842519675 Inches, Length: 8.661417314 Inches, Weight: 0.48722159902 Pounds, Width: 5.905511805 Inches |
| Author: | Franklin W. Dixon |
| Language: | en |
| Binding: | Paperback |
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