L. Frank Baum
1) Ozma of Oz
Author
Description
When a storm blows Dorothy to the land of Ev where lunches grow on trees, she meets the Scarecrow, the Tin Woodman, the Cowardly Lion, and Princess Ozma, and together they set out to free the Queen of Ev and her ten children.
4) Road to Oz
Author
Description
Dorothy and her friends follow the enchanted road to Oz and arrive in time for Ozma's birthday party.