The Secret Island
  • # of Books:
    5
  • First Book:
    January 1938
  • Latest Book:
    January 1953
  • Age Level:
    Middle Grade (Ages 8-12)
  • Series Rating:
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The Secret Series in Order (5 Books)

Order Book Date Rating
1 5
2 4
3 0
4 0
5 0

Frequently Asked Questions (FAQ)

There are 5 books in The Secret series.

The Secret series does not have a new book coming out soon. The latest book, The Secret of Moon Castle (Book 5), was published in January 1953.

The first book in The Secret series, The Secret Island, was published in January 1938.

The Secret series primarily falls into the General Fiction genre. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.