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173 pages • first pub 1931 (editions)
ISBN/UID: 9780448089102
Format: Hardcover
Language: English
Publisher: Grosset & Dunlap
Publication date: 01 May 1931
Description
Frank and Joe race against time to retrieve a scientist's top-secret invention before thieves get their hands on it. But the young detectives soon discover that they are involved in a mystery far greater in scope than just safeguarding the inventi...
Community Reviews Summary of 213 reviews
Moods
mysterious 81%
lighthearted 45%
challenging 9%
relaxing 9%
tense 9%
Pace
medium 36%
slow 9%
Plot- or character-driven?
Plot: 57% | A mix: 42%Strong character development?
No: 71% | N/A: 14% | Yes: 14%Loveable characters?
Yes: 71% | No: 28%Diverse cast of characters?
No: 71% | It's complicated: 14% | Yes: 14%Flaws of characters a main focus?
No: 57% | Yes: 42%Average rating
Content Warnings
Submitted by users as part of their reviews
Moderate
Confinement, KidnappingMinor
Car accident
173 pages • first pub 1931 (editions)
ISBN/UID: 9780448089102
Format: Hardcover
Language: English
Publisher: Grosset & Dunlap
Publication date: 01 May 1931
Description
Frank and Joe race against time to retrieve a scientist's top-secret invention before thieves get their hands on it. But the young detectives soon discover that they are involved in a mystery far greater in scope than just safeguarding the inventi...
Community Reviews Summary of 213 reviews
Moods
mysterious 81%
lighthearted 45%
challenging 9%
relaxing 9%
tense 9%
Pace
medium 36%
slow 9%
Plot- or character-driven?
Plot: 57% | A mix: 42%Strong character development?
No: 71% | N/A: 14% | Yes: 14%Loveable characters?
Yes: 71% | No: 28%Diverse cast of characters?
No: 71% | It's complicated: 14% | Yes: 14%Flaws of characters a main focus?
No: 57% | Yes: 42%Average rating
Content Warnings
Submitted by users as part of their reviews
Moderate
Confinement, KidnappingMinor
Car accident