The fourth installment of the Oz adventures. When the Shaggy Man asks Dorothy the way to Butterfield, Kansas, she's glad to help him. But she soon finds that not only are they lost - they are in the land of OZ. Together they travel to the Emerald City, wher the Princess Ozma has the power to send them home once again.

Book 5 of L. Frank Baum's immortal OZ series, in whcih Dorothy and the Shaggy Man inexplicably find themselves in Oz, where they meet Polychrome, the abandoned daughter of the Rainbow, and a host of others on their way to Ozma's lavish birthday party.