Hardy Boys 15: The Sinister Signpost - Franklin W. Dixon

Hardy Boys 15: The Sinister Signpost

By Franklin W. Dixon

  • Release Date: 1936-09-01
  • Genre: Mysteries for Kids
Score: 4.5
4.5
From 29 Ratings

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.