Rinkitink in Oz has the tenth installment in L. Frank Baum's Land of Oz series is titled Recorded the Perilous Quest of Prince Inga of Pingaree and King Rinkitink in the Magical Isles that Lie Beyond the Borderland of Oz. With pictures in both black and white and full color by artist John R. Neill, it was released on June 20, 1916. Because Baum initially wrote the majority of the book as a fantasy novel unrelated to his Oz books over 10 years earlier, in 1905, it is noteworthy Until the book's climax, all of the action takes place elsewhere, and no characters from Oz are introduced. The author's second son Robert Stanton Baum's first child, Robert Alison Baum, was the subject of the book's dedication. When Dorothy in Oz learns about these happenings, she sets off with the Wizard of Oz to visit the Nome Kingdom and confront Kaliko. He must release Inga's parents under her pressure. When they are all together again, they all go to Oz. The Wizard learns that Bilbil is really Prince Bobo of Boboland who was cruelly transformed into a goat.