The global bestseller that inspired the hit musical phenomenon.

The third book in Gregory Maguire's Wicked Years series - inspiration for the major, much-anticipated movie coming to the big screen this November.

As civil war looms in Oz, an ancient and tetchy oracle named Yackle prepares for death.

Before she can return to dust, however, the Cowardly Lion - an enigmatic figure named Brrr - arrives seeking knowledge about Elphaba Thropp, the Wicked Witch of the West. The woman who defended him when he was a cub.

But Yackle, too, demands answers of her own.