Ozma of Oz, published on July 30, 1907, was the third book of L. Frank Baum's Oz series. It was the first in which Baum was clearly intending a series of Oz books.
It is the first Oz book where the majority of the action takes place outside of the... Wikipedia
Originally published: July 30, 1907
Author: L. Frank Baum
Illustrator: John R. Neill
Followed by: Dorothy and the Wizard of Oz