L . Frank  Baum takes us to the distant island of Pingaree , where Inga , the Prince along with king Rinkitink of Gilgad , undertakes the dangerous voyage to the islands of Regos and Coregos to rescue his captive parents and free the enslaved people of his kindom. We get to visit , for the first time , the lands of Thi , and Herku , and meet the Bears of the Bear Centre , as Dorothy and company , which includes the Wizard of Oz , the Patchwork Girl, the Sawhorse and the Cowardly  Lion among others , embark on their journey to find  Ozma , the Princess of Oz.