Out of Oz - Gregory Maguire

It began with the Clock of the Time Dragon and the birth of a green-skinned child, Elphaba Thropp, who became known as the Wicked Witch of the West.

Years have gone by and the once peaceful and prosperous Land of Oz is knotted with social unrest. The Wicked Witch has long passed into legend, her boy Liir and his wife are in exile, and their daughter Rain in hiding. Even Galinda Upland is under house arrest and the Cowardly Lion is on the run from the law. Then there is the matter of Dorothy, and the rumours of her return.

The Emerald City mounts an invasion of Munchkinland and chaos reigns. Rain must come of age; it is up to her to take up her broom – and her legacy – in an Oz wracked by war.