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.
| Main Author: | Dixon, Franklin W. |
|---|---|
| Format: | Books Print Book |
| Language: | English |
| Published: |
New York :
Grosset & Dunlap,
c1936.
|
| Series: |
Hardy boys mystery stories ;
#15 |
| Subjects: |