Dorothy and the Wizard in Oz

In the story, Dorothy is joining her Uncle Harry in California at Hugson's Ranch, on their way home from Australia, Dorothy having visited friends in San Francisco. She strikes up an acquaintance with Hugson's nephew and her second cousin Zeb. Dorothy, Eureka (Dorothy's cat) and Zeb are riding a buggy being pulled by a horse named Jim when an earthquake starts and opens a crevice beneath them that sends them hurtling into the bowels of the earth. Dorothy, Eureka, Jim, Zeb, and the buggy alight ...