The sinister sign post
The Hardy boys and their father solve a mystery involving inexplicable crashes of highspeed race cars being used to test an experimental turbine motor.
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| Main Author: | |
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| Format: | Books Print Book |
| Language: | English |
| Published: |
New York :
Grosset & Dunlap,
c1936.
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| Series: | Hardy boys mystery stories ;
#15 |
| Subjects: | |
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| Summary: | The Hardy boys and their father solve a mystery involving inexplicable crashes of highspeed race cars being used to test an experimental turbine motor. |
|---|---|
| Physical Description: | 215 p. : ill. ; 20 cm. |
