The Secret Books in Order
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Title
Date
FAQ
How many books are in The Secret series?
5 books
When will the next book in the series be released?
No new book is currently scheduled. The latest book, The Secret of Moon Castle, was published in January 1953.
When was the most recent book released?
The Secret of Moon Castle was published in January 1953.
What was the first book in the series?
The first book in the series is The Secret Island, published in January 1938.
What genre is The Secret series?
The series primarily falls into the General Fiction genre.
Is The Secret series finished?
The series does not currently have a new book scheduled.