Rinkitink in Oz is the tenth book in the Oz series written by L. Frank Baum, first published in 1916. It was originally written in 1905 as a stand alone fantasy work and subsequently rewritten as an Oz book. Therefore, most of the action takes place outside of Oz in neighboring fairy countries. Rinkitink, a plump jolly fellow, and his grouchy goat Bilbil assist Inga, the crown prince of Pingaree, in reclaiming his lost kingdom from invaders. Inga is helped in his efforts by three magic pearls: one, blue, giving him superhuman strength; one, pink, protecting him from harm; and one, white, providing him with words of wisdom. But when the pearls are lost, can Queen Ozma, watching events on her magic mirror, save the day? Thrilling tale of adventure from a master storyteller, Rinkitink in Oz is sure to enjoyed by Oz fans far and wide and by all who delight in tales of enchantment and adventure.