The Boy Adventurers in the Unknown Land
| First published | 1924 |
|---|---|
| Series | The Boy Adventurers #4 |
| Publisher | G. P. Putnam's Sons |
| Format | Hardcover |
| Type | Novel |
| Pages | v+257 |
| Price | $1.75 |
Data from WorldCat, Amazon.com, and 1946-1954 Copyright Registration Cards (O-Z).