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      The Infinity Clue

      by Franklin W. Dixon
      Published
      Nov 1981
      Main Genre
      Amateur Sleuth Amateur Sleuth
      Pages
      190
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      Series
      Hardy Boys Mystery Stories Book 70

      Series Placement

      Book 70
      🟡 Mostly Standalone
      View full series order

      Genres & Themes

      Genres

      Suspense

      Subgenres

      Amateur Sleuth

      Characters & Occupations

      Terrorists

      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
      Jan 1983 HarperCollins (UK) ISBN 0006918298
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      Paperback edition cover
      Paperback
      May 1986 Minstrel ISBN 067162475X
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      Paperback edition cover
      Paperback
      Nov 1989 Simon & Schuster ISBN 0671691546
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      Hardcover

      Hardcover edition cover
      Hardcover
      First Edition Nov 1981 Wanderer ISBN 0671423436
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      Hardcover edition cover
      Hardcover
      Nov 1981 Wanderer ISBN 0671423428
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      Hardcover edition cover
      Hardcover
      Nov 1982 HarperCollins ISBN 0207146519
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      Hardcover edition cover
      Hardcover
      Mar 2001 San Val ISBN 0808546120
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