
Young detectives Frank and Joe Hardy, investigating the disappearance of a professor, encounter a hot-tempered hermit, and sabotage at the radar station and Honeycomb Caves.
year: 1992, 1964, 1998, 1995, 2017
call number/section: 1000
subjects: hardy boys (fictitious characters), fiction, college teachers, sabotage, mystery and detective stories, hardy boys (fictional characters), mystery fiction, missing persons, fiction, amnesia, detective and mystery fiction, detective and mystery stories
Editions

Dixon, Franklin W
Grosset & Dunlap (1992)
Frank and Joe solve a mystery involving the disappearance of a professor, a hot-tempered hermit, sabotage at the new Bayport Coastal Radar Station, and the Honeycomb Caves.
Schools: 15

Dixon, Franklin W
Grosset & Dunlap (1964)
Schools: 0

Dixon, Franklin W
Applewood Books (1998)
When the Hardy boys reached the caves, they came unexpectedly upon a queer old hermit.
Schools: 0
Dixon, Franklin W
Grosset (1995)
Schools: 0

Dixon, Franklin W
Grosset & Dunlap, an imprint of Penguin Random House (2017)
Frank and Joe solve a mystery involving the disappearance of a professor, a hot-tempered hermit, sabotage at the new Bayport Coastal Radar Station, and the Honeycomb Caves.
Schools: 1
Dixon, Franklin W
Grosset (1995)
Schools: 1
Dixon, Franklin W
Young detectives Frank and Joe Hardy, investigating the disappearance of a professor, encounter a hot-tempered hermit, and sabotage at the radar station and Honeycomb Caves.
Schools: 0