The Secret of the Caves

The seventh Hardy Boys mystery sends Frank and Joe along a rugged coastline riddled with sea caves, where more than the tide is hiding. What begins as a search for a vanished recluse widens into a tangle involving a swindler with designs on a young woman’s money and a worried man hunting for his missing brother. The boys pick their way through damp tunnels and dead ends before the pieces finally fit. Dating to 1929 and issued under the Franklin W. Dixon pen name, it trades Bayport’s streets for a wilder, wave-battered setting that suits the secret at its center. It is a solid, brisk case from the syndicate’s early run. Read the full story free as a PDF and EPUB.