Gregory Maguire is the New York Times bestselling author of Confessions of an Ugly Stepsister; Lost; Mirror Mirror; and the Wicked Years, a series that includes Wicked, Son of a Witch, A Lion Among Men, and Out of Oz.

Now a beloved classic, Wicked is the basis for a blockbuster Tony Award—winning Broadway musical. Maguire has lectured on art, literature, and culture both at home and abroad. He lives with his family near Boston, Massachusetts.

David Litchfield first started to draw when he was very young, creating comics for his older brother and sister. Since then his work has appeared in magazines, newspapers, books and on T-shirts. David's first picture book The Bear and the Piano won the Waterstones Children's Book Prize. He lives in Bedfordshire.