The sinister signpost
By: by Franklin W. Dixon.
Series: His Hardy boys mystery stories; [15]
Publisher: Grosset & Dunlap
Published: 1968
Place of publication: New York
Language: eng
Number of pages: 175
Subjects: Mystery and detective stories
Description: The Hardy boys and their father solve a mystery involving inexplicable crashes of highspeed race cars being used to test an experimental turbine motor.