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The Sinister Signpost

Published
Jan 1936
Main Genre
Amateur Sleuth Amateur Sleuth
Rating
Pages
192

About This Book

Racing cars! Mystery! Adventure! These elements combine to give Frank and Joe Hardy one of the most dangerous and intriguing cases of their careers.

It all starts when their father, Fenton Hardy, is engaged by an experimental race car and motor designer to investigate a series of mysterious accidents. Three of his drivers have crashed because the windshields of their cars were suddenly crazed, thus cutting off forward vision. Frank and Joe uncover one slim clue. Each of the drivers had seen a signpost marked DANGER shortly before his accident. The young detectives investigate, only to discover that the signposts have vanished. What happened to them? And what sinister purpose did they serve?

The attempted theft of a secret experimental motor and the kidnapping of a famous race horse are part of this thrilling case, which proves to be as sinister as the signposts themselves.

Series Placement

🟡 Mostly Standalone

Genres & Themes

Genres

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Formats & Editions

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Paperback

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Paperback
Jan 1975 HarperCollins (UK) ISBN 0006910505
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Paperback
Apr 1975 Grosset & Dunlap ISBN 0448189151
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Paperback
Jan 1989 HarperCollins (UK) ISBN 0006923526
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Hardcover

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Hardcover
Sep 1936 Grosset & Dunlap ISBN 0448089157
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Hardcover
Oct 1969 Grosset & Dunlap ISBN 0356013308
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Hardcover
Jan 1972 HarperCollins (UK) ISBN 0001605224
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Hardcover
Nov 2004 Applewood Books ISBN 1557092737
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eBook

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eBook
Sep 1936 Penguin ISBN 1101076291
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eBook
Sep 1936 Grosset & Dunlap ISBN B002C7Z4RI
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