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 many dangerous encounters, Frank and Joe discover a powerful searchlight in one of the craggy caverns along the seacoast. In the brilliant white glare of the searchlight, the startling secret of the caves is dramatically revealed.
Author: Franklin W. Dixon
Binding Type: Hardcover
Publisher: Grosset & Dunlap
Published: 05/01/1929
Series: Hardy Boys #007
Pages: 192
Weight: 0.55lbs
Size: 7.62h x 5.04w x 0.70d
ISBN: 9780448089072
Language: English
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