By Frank Baum
Published: 1900
Episode: One of Them
Reference: Henry Gale was the name of Dorothy's uncle in the Wizard of Oz. He also claims to have got to the island in a hot air balloon.
Outline
The Wonderful Wizard of Oz is a children's book written in 1900 by L. Frank Baum and illustrated by W.W. Denslow. It was originally published by the George M. Hill company in Chicago, and has since been reprinted countless times, sometimes under the name The Wizard of Oz. The story chronicles the adventures of a girl named Dorothy in the land of Oz..
More info: Wiki Entry, Amazon