Merry Go Round in Oz

Merry Go Round in Oz (1963) is the fortieth in the series of Oz books created by L. Frank Baum and his successors. It was written by Eloise Jarvis McGraw and Lauren McGraw Wagner (her married name was dropped from reprinted editions after the marriage ended). It was illustrated by Dick Martin.

Merry Go Round in Oz is the last of the "Famous Forty" and the last "official" Oz book. Reilly & Lee had refused many other authors, including previous author Rachel R. Cosgrove, to publish a fortieth Oz book because of poor sales, but were persuaded by McGraw's two Newbery Awards to admit a fortieth book into the series. The first edition, the so-called "white edition," is the rarest book in the series in its original printings.

Synopsis
Halidom and Troth are two adjacent principalities within the Land of Oz, both resembling medieval kingdoms. Heir to the throne of Halidom is Prince Gules. The people of Halidom have always derived their physical and mental abilities from three golden circlets worn by their ruler: the first around his forehead, the second on his right forearm, the third on his right thumb. The first and third circlets have been lost, with attendant loss of abilities by the subjects of Halidom.

Fess is a young pageboy in the household of Prince Gules, but Fess was born in Troth, so the circlets have no effect on him. Awakening one day to discover that all the natives of Halidom are strangely languid, Fess learns that the second (and last remaining) circlet has been stolen. He embarks on a quest with Prince Gules, aided by a unicorn and a Flittermouse (a mouse with wings) to retrieve all three.

Meanwhile, Dorothy Gale and the Cowardly Lion temporarily leave the Emerald City to place an order with the Easter Bunny, whose underground domain is conveniently accessible from Oz. When Dorothy escapes from an orphanage, she and the Lion join the Prince and Fess in their quest.

Robin Brown, an orphan from the USA, rides a magic merry-go-round horse to the Land of Oz. The horse whisks him the Quadling Country of Oz, where Robin has adventures in View Halloo (a region dedicated to fox-hunting) and Roundabout (a land where everything is round, inhabited by Roundheads). Eventually, Robin must help find the missing magic circlets of Halidom.