Oz Series

Dorothy and the Wizard in Oz is the fourth book set in the Land of Oz written by L. Frank Baum. It was published on June 18, 1908 and reunites Dorothy Gale with the humbug Wizard from The Wonderful Wizard of Oz . Dorothy Gale is gladly joining her Uncle Henry in California to visit relatives who live at Hugson's Ranch, after their vacation from Australia in Ozma of Oz . Dorothy meets Hugson's nephew who is her second cousin, Zeb of Hugson's Ranch. Dorothy, Eureka (her cat) and Zeb are riding a buggy being pulled by a cab-horse named Jim when a violent earthquake strikes.

The Emerald City of Oz is the sixth book in L. Frank Baum's Oz series. Originally published on July 20, 1910, it is the story of Dorothy Gale and her Uncle Henry and Aunt Em coming to live in Oz permanently. While they are toured through the Quadling Country, the Nome King is assembling allies for an invasion of Oz. This is the first time in the Oz series that Baum made use of double plots for one of the books.