The Schoolyard Mystery
  • # of Books:
    6
  • First Book:
    March 1984
  • Latest Book:
    April 1998
  • Genres:
    Mystery
  • Age Level:
    Beginning Readers (Ages 5-7)
  • Series Rating:
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The Invisible, Inc. Series in Order (6 Books)

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Frequently Asked Questions (FAQ)

There are 6 books in the Invisible, Inc. series.

The Invisible, Inc. series does not have a new book coming out soon. The latest book, Parents' Night Fright (Book 6), was published in April 1998.

The first book in the Invisible, Inc. series, The Schoolyard Mystery, was published in March 1984.

The Invisible, Inc. series primarily falls into the Mystery genre. This series was written for ages 5-7 and is a good choice for children just learning to read.
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