The Complete Works of Ruth Plumly Thompson

The Complete Works of Ruth Plumly Thompson
Ruth Plumly Thompson was an American writer of children's stories, best known for writing many novels placed in Oz, the fictional land of L. Frank Baum's classic children's novel The Wonderful Wizard of Oz and its sequels.
This collection includes the following:
The Royal Book of Oz
Kabumpo in Oz
Ozoplaning with the Wizard of Oz
The Wishing Horse of Oz
Captain Salt in Oz
Handy Mandy in Oz
The Silver Princess in Oz
The Cowardly Lion of Oz
Grampa in Oz