Author Gregory Maguire has re-imagined the stories of Oz beginning with Wicked which took the viewpoint of one of the wicked witches. With the recent publication of Out of Oz, the fourth and final volume of the series, he looks back on his journey of imagination.

What is the relationship between the original and the story-teller’s retelling?  What are the satisfactions in re-imagining a beloved tale?  What are the pitfalls?