![Hardy Boys 15: The Sinister Signpost](/assets/artwork/1x1-42817eea7ade52607a760cbee00d1495.gif)
![Hardy Boys 15: The Sinister Signpost](/assets/artwork/1x1-42817eea7ade52607a760cbee00d1495.gif)
![](/assets/artwork/1x1-42817eea7ade52607a760cbee00d1495.gif)
![](/assets/artwork/1x1-42817eea7ade52607a760cbee00d1495.gif)
Hardy Boys 15: The Sinister Signpost
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- 5,49 €
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- 5,49 €
Publisher Description
In one of the most dangerous and intriguing cases of their careers, Frank and Joe Hardy help their father investigate a series of mysterious car accidents. 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. 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.