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Publisher's Summary

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 their pal Chet Morton and buddy Biff Hooper turn up a clue that sends the young detectives in another direction, to the Honeycomb Caves.

After many dangerous encounters, Frank and Joe discover a powerful searchlight on one of the craggy caverns along the seacoast. In the white glare of the searchlight, the startling secret of the cave is dramatically revealed.

Listen to more books in the Hardy Boys series.
©1992, 1964, 1957, 1929 Simon & Schuster, Inc.; (P)2003 Random House, Inc. Listening Library, an imprint of the Random House Audio Publishing Group

Critic Reviews

"Filled with action and plot twists, the mystery is ably read by Bill Irwin. His delivery is soft, but he has enough variety to keep the listener's interest. The sound effects and music are also appropriate for the production." (AudioFile)

What members say

Average Customer Ratings

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  • Overall
  • John
  • Bridgewater, NJ, United States
  • 10-19-04

Hardy Boys Fun

I just loved these stories as a kid and I'm enjoying them again as an adult. Harmless stories with great characters. PLEASE, AUDIBLE, GET MORE HARDY BOYS STORIES!!!

2 of 2 people found this review helpful

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Hardy Boy Mystery

Very well read and written! I really enjoyed listening to the Hardy Boy mystery. Can't wait to listen to some more!!!

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  • SB
  • 05-25-16

The best way to drive, lose the iPad on long trips!

We love these on our car drives. Sure fun and brings us closer. They are timeless.

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My 8 year old son LOVES this book

My son is a big fan of the Hardy Boys series; he loves all these books and listens to them over and over. Great action and mysteries. He listens to every audiobook of the Hardy Boys he can get his hands on. An oldie but goodie, they still very much appeal to young readers.

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  • shaun bartley
  • 09-01-17

very good book

I've read hardy boy book for years even now as an adult I love listening to them on audible the narrators are great each character has a unique voice so you know who's talking. I will still be listening to them in years to come.

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  • Reginald pelle
  • 05-24-16

Wonderful!

The most difficult and most challenging, of all mysteries. But with a little bit of cake, adventure and some lemonade; the Hardy Boys solved this mystery. Wonderful!