The Hardy Boys series, first published in 1927, has sold more than 70 million copies!
Now with a brand-new look, this is an edition that collectors won't want to miss! In The Secret of the Caves, the seventh book in the incredibly popular, long-running series, Frank and Joe Hardy discover the secret of the Honeycomb Caves while searching for a missing professor. A special treat for Hardy Boys fans and any reader who's new to the series!
- ISBN10 0515159093
- ISBN13 9780515159097
- Publish Date 17 October 2017
- Publish Status Active
- Publish Country US
- Publisher Penguin Putnam Inc
- Imprint Jove Publications
- Format Hardcover
- Pages 192
- Language English
- URL https://penguinrandomhouse.com/books/isbn/9780515159097