This book has been graded for interest at 8-12 years.

This book was published 2009 by Atheneum Books for Young Readers .

Zilpha Keatley Snyder (b. 1927) is a three-time Newbery Honor-winning author of adventure and fantasy novels for children. Her smart, honest, and accessible narrative style has made her books beloved by generations. When not writing, she enjoys reading and traveling. Snyder lives in Mill Valley, California.