L. Frank Baum (1856-1919) was an American author of children's literature and pioneer of fantasy fiction. He demonstrated an active imagination and a skill for writing from a young age, and was encouraged by his father who bought him the printing press with which he began to publish several journals. Although he had a lifelong passion for theater, Baum found success with his novel The Wonderful Wizard of Oz (1900), a self-described "modernized fairy tale" that led to thirteen sequels, inspired several stage and radio adaptations, and eventually, in 1939, was immortalized in the classic film starring Judy Garland.

Visiting family in California, Dorothy and her cat Eureka are enjoying a carriage ride with her cousin Zeb and his horse Jim. When an earthquake appears out of nowhere, however, the group fall through the earth to the Land of the Mangaboos, a hostile people who blame the intruders for causing the disaster. Just before they are sentenced to death, they are saved by the Wizard of Oz, yet soon find their trials are far from over. Dorothy and the Wizard in Oz, the fourth installment in L. Frank Baum's beloved fantasy series, is a tale of excitement and adventure for children and adults alike.