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Triggered by the disappearance of a brilliant young professor, this mystery takes the Hardy boys first to Kenworthy College, where they find a puzzling message on an examination paper. But then, a new clue is unearthed that sends the young detectives to the Honeycomb Caves. After... Read Full Overview

A brilliant professor vanishes, leaving behind only a cryptic message scrawled on an exam paper. Just when the Hardy brothers, Frank and Joe, are about to hit a dead end, a new clue surfaces, pointing them toward the mysterious Honeycomb Cliffs. Danger and intrigue await them... Read Full Overview

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... Read Full Overview

This is the original 1929 story of The Secret of the Caves: The Hardy Boys book 7. The book has undergone one major revision since originally published in 1929, resulting in two different stories bearing the same title.

While enjoying a summer day boating on Barmet... Read Full Overview

In this exciting installment, after rescuing a woman from drowning the Hardy boys find themselves helping their father in the hunt for her missing brother. Along with their chums, they encounter a number of colorful characters as well as natural impediments in their quest... Read Full Overview

This is the original 1929 story of The Secret of the Caves: The Hardy Boys book 7. The book has undergone one major revision since originally published in 1929, resulting in two different stories bearing the same title.

While enjoying a summer day boating on Barmet... Read Full Overview

This is the original 1929 story of The Secret of the Caves: The Hardy Boys book 7. The book has undergone one major revision since originally published in 1929, resulting in two different stories bearing the same title.

While enjoying a summer day boating on Barmet... Read Full Overview