How many Xavier Riddle and the Secret Museum books are there?

There are 4 books in the Xavier Riddle and the Secret Museum series by Brooke Vitale, for ages 5-9.

Xavier Riddle and the Secret Museum Books in Order

4 books · Ages 5–9 · Chapter Books

Xavier Riddle and the Secret Museum is a 4-book series for ages 5–9 by Brooke Vitale. Each book stands alone — start anywhere.

Start anywhere — each book stands alone.

That said, I Am Cleopatra and I Am Alexander Hamilton are great first picks.

No particular order needed — browse and pick what catches your eye.