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THE HARDY BOYS ONLINE: An unofficial online resource for fans of the Hardy Boys books

Book details

The Mystery of the Spiral Bridge

Volume #45 in the Hardy Boys Canon (1-58) series

  • Publication date: 1966
  • Ghostwriter: Andrew E. Svenson
  • Summary: Saboteurs have kidnapped Fenton Hardy, and the boys must rescue their father while foiling a plot to blow up a bridge in Kentucky.

Cover art (click thumbnail to enlarge)