| 8/ 10 1Votes 8 
  3.7/5  AbeBooks Country United States Series Hardy Boys Pages 192 pp Publisher Grosset & Dunlap |  3.7/5  Goodreads  4.6/5  Barnes & Noble Language English Publication date January 1, 1957 Originally published 1 January 1957 | |||||||||||||||||||||||||||||||||
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| Media type Print (Hardback & Paperback) Similar Franklin W Dixon books, Frank and Joe Hardy: the Clues Brothers books, Mystery books | ||||||||||||||||||||||||||||||||||
The Secret of Pirates' Hill is Volume 36 in the original The Hardy Boys Mystery Stories published by Grosset & Dunlap.
This book was written for the Stratemeyer Syndicate by John Almquist in 1956. Between 1959 and 1973 the first 38 volumes of this series were systematically revised as part of a project directed by Harriet Adams, Edward Stratemeyer's daughter. The original version of this book was shortened in 1972 by Priscilla Baker-Carr resulting in two slightly different stories sharing the same title.
Plot summary
Hired by a mysterious businessman to locate an old Spanish cannon, the Hardy brothers and friends grow more and more suspicious as they encounter stolen cars and a mysterious man on a motorcycle. They eventually uncover the cannon and thousands in gold bullion after perilous underwater adventures.
