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      The Masked Monkey

      by Franklin W. Dixon
      Published
      Jan 1972
      Main Genre
      Amateur Sleuth Amateur Sleuth
      Rating
      Pages
      192
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      Series
      Hardy Boys Mystery Stories Book 51

      About This Book

      Frank and Joe are called upon to find a wealthy industrialist's son who has mysteriously disappeared. The only clue in the case leads the two young detectives to South America, where the intrigues of evil adversaries almost cost them their lives. Only through their courage and perseverance do the Hardys solve one of the toughest cases they have ever tackled.

      Series Placement

      Book 51
      🟡 Mostly Standalone
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      Genres & Themes

      Genres

      Suspense

      Subgenres

      Amateur Sleuth

      Age Level

      Kids (12 & Under) Kids: Middle Grade

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      Formats & Editions

      Browse the different covers, formats, and publication history for this title.

      Paperback

      Paperback edition cover
      Paperback
      Apr 1975 Grosset & Dunlap ISBN 0448189518
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      Paperback edition cover
      Paperback
      Jan 1988 HarperCollins (UK) ISBN 0006928277
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      Hardcover

      Hardcover edition cover
      Hardcover
      Jan 1972 Grosset & Dunlap ISBN 0448089513
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      Hardcover edition cover
      Hardcover
      Jan 1979 HarperCollins (UK) ISBN 0001605453
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      eBook

      eBook edition cover
      eBook
      Jan 1972 Grosset & Dunlap ISBN B00AEDDSSE
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      eBook edition cover
      eBook
      Jan 1972 Penguin ISBN 1101657294
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