Emerald City of Oz.pkg - Road to Oz by L. Frank Baum. Oz is a Marvelous land that was written about by L. Frank Baum, and later many other authors. Fourteen Oz books were written by L. Frank Baum. They are all about different adventures that Dorothy, Glinda, Ozma, and other interesting characters have in this magical land. This Newton book also includes a Map of the Land of Oz! Uploaded with permission of Bob Hicks (pdcbob@aol.com) of America Online's PDA Forum.