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Book Information
177 pages • hardcover • first pub 1933 • 7 editions
ISBN/UID: 9780448189123
Format: Hardcover
Language: English
Publisher: Grosset & Dunlap
Edition Pub Date: 01 Jan 1965
About SGAI
SGAI (StoryGraph AI) is a complete in-house solution. This is not ChatGPT or Claude.
All processing is done on StoryGraph, so your reading data is kept private and never shared.
Regarding the environmental impact: The entire feature uses the power of a single gaming PC and runs on 100% renewable energy.
SGAI is opt-in and off by default. Press the button below to turn it off, and you can turn it back on from the Preferences page:
Description
A plot to steal a top-secret instrument vital to the United States space program poses a challenging case for Frank and Joe Hardy. The whereabouts of their famous detective father is a mystery, so Frank and Joe are on their own to foil the plotters.
Community Reviews
Content Warnings
177 pages • hardcover • 1933
ISBN/UID: 9780448189123
Format: Hardcover
Language: English
Publisher: Grosset & Dunlap
Edition Pub Date: 01 Jan 1965
About SGAI
SGAI (StoryGraph AI) is a complete in-house solution. This is not ChatGPT or Claude.
All processing is done on StoryGraph, so your reading data is kept private and never shared.
Regarding the environmental impact: The entire feature uses the power of a single gaming PC and runs on 100% renewable energy.
SGAI is opt-in and off by default. Press the button below to turn it off, and you can turn it back on from the Preferences page:
Description
A plot to steal a top-secret instrument vital to the United States space program poses a challenging case for Frank and Joe Hardy. The whereabouts of their famous detective father is a mystery, so Frank and Joe are on their own to foil the plotters.
Community Reviews
Content Warnings