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      The Secret of the Caves

      by Franklin W. Dixon
      Published
      Jan 1929
      Main Genre
      Amateur Sleuth Amateur Sleuth
      Rating
      Pages
      175
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      Series
      Hardy Boys Mystery Stories Book 7

      About This Book

      NOTE: There are two slightly different Hardy Boys books by this title. One was published in the early 1950's, and the other was written in the 1970's. This is one of about 6 instances.
      Although some - Including this one - were merely changed (Or 'updated'), some were completely scrapped and the title re-used. The early versions have never been re-printed and are quite scarce, today.

      Series Placement

      Book 7
      🟡 Mostly Standalone
      View full series order

      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
      Trade Paperback
      Digireads.com ISBN 1420982532
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      Paperback edition cover
      Trade Paperback
      Jul 1984 HarperCollins (UK) ISBN 0006923542
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      Mass Market Paperback
      Jun 2003 Grosset & Dunlap ISBN 0448433095
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      Trade Paperback
      Jan 2025 Blurb ISBN B0DSQM9JBN
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      Paperback
      Jan 2025 Dover Publications ISBN 0486853896
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      Paperback
      May 2025 Ancient Wisdom Publications ISBN 1968194088
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      Paperback
      Sep 2025 Start Publishing PD LLC ISBN B0FJKZDV7L
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      Hardcover

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      Hardcover
      May 1929 Grosset & Dunlap ISBN 0448089076
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      Hardcover
      Apr 1975 Grosset & Dunlap ISBN 0448189070
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      Hardcover
      Oct 1998 Applewood Books ISBN 1557091501
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      Hardcover
      Oct 2017 Grosset & Dunlap ISBN 0515159093
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      eBook

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      BleeckerBooksCo
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      eBook
      May 1929 Grosset & Dunlap ISBN B002C0XPYO
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      eBook
      May 1929 Penguin ISBN 1101076224
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      eBook
      Aug 2004 Aegitas ISBN 0369412788
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      eBook
      May 2024 Alien Ebooks ISBN 1667619888
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      Jan 2025 Rare Treasure Editions ISBN 1774648849
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      May 2025 Digireads.com Publishing ISBN 1420982540
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      Audio

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      Audio Cassette
      Jul 2003 Listening Library ISBN 0807216798
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      Audible
      Aug 2004 Listening Library ISBN B0006IU5NI
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      Audio CD
      Aug 2009 Listening Library ISBN 030758223X
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