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the hard boys mystery stories 15 : the sinister signpost Franklin W. Dixon

By: Contributor(s): Publication details: New York Grosset & Dunlap, Inc. c1936Description: 175 illustrations 19cmDDC classification:
  • Fic. D621s 2008
Summary: In The Sinister Signpost (Book 15), Frank and Joe Hardy investigate a series of staged car crashes targeting an automotive company. Drivers reported seeing "DANGER" signs just before their windshields mysteriously "crazed" (cracked). The brothers uncover a plot involving stolen, secret engine plans, a kidnapped racehorse, and a villain named Vilnoff.
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In The Sinister Signpost (Book 15), Frank and Joe Hardy investigate a series of staged car crashes targeting an automotive company. Drivers reported seeing "DANGER" signs just before their windshields mysteriously "crazed" (cracked). The brothers uncover a plot involving stolen, secret engine plans, a kidnapped racehorse, and a villain named Vilnoff.

English