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      Dark Day in the Deep Sea

      by Mary Pope Osborne
      Published
      Apr 2008
      Main Genre
      Action Adventure Action & Adventure
      Rating
      Pages
      144
      Buy on Amazon Book
      Series
      Magic Tree House Merlin Missions Book 11
      Also Appears In
      Magic Tree House Book 39

      About This Book

      History, mystery, and magic!
      Jack and Annie continue their quest for the secrets of happiness—secrets they need if they're going to save Merlin. But when the magic tree house leads them to a tiny deserted island in the middle of the ocean, they're not sure who needs help more—Merlin, or them! The two are soon rescued by a shipful of explorers and scientists. But the crew isn't looking for the secrets of happiness. The crew is looking for . . . a sea monster! Will Jack and Annie wind up in the monster's clutches?

      Series Placement

      Book 11
      View full series order
      Also Appears In
      Magic Tree House
      Book 39
      🟡 Mostly Standalone

      Genres & Themes

      Genres

      Speculative Fiction

      Subgenres

      Action Adventure Fantasy

      Themes

      Magic Time Travel

      Age Level

      Kids (12 & Under) Kids: Chapter Books

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      Formats & Editions

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      Paperback

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      May 2009 Random House ISBN 0375837329
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      Jan 2009 Scholastic ISBN 0545202140
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      Jan 2009 Scholastic ISBN 0545205980
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      Hardcover

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      First Edition Mar 2008 Random House ISBN 0375837310
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      Mar 2008 Random House ISBN 0375937315
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      Jan 2009 Oxford University Press (UK) ISBN 1439589909
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      May 2009 Perfection Learning ISBN 1627657894
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      May 2009 Turtleback Books ISBN 060601778X
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      Jul 2009 Random House ISBN 037596536X
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      eBook

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      Mar 2008 Listening Library Audio ISBN 0739362690
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      Mar 2009 Random House ISBN 0375894616
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      Mar 2009 Random House ISBN B000VMHHA8
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      Audio

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      Audio CD
      Mar 2008 Listening Library ISBN 0739362682
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      Audible
      Mar 2008 Listening Library ISBN B001FVJHKM
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