| ISBN: | 9781101123201 |
| Publisher: | Grosset & Dunlap |
| Published: | 1 February, 1933 |
| Format: | eBook |
| Editions: |
4 other editions
of this product
|
In an effort to recover a top-secret instrument needed by the space program, the Hardy boys travel to South America, hot on the trail of a notorious ring of spies.
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