Zilpha Keatley Snyder was born in Lemoore, California on May 11, 1927. She received a B.A. from Whittier College in 1948. While ultimately planning to be a writer, after graduation she decided to teach school temporarily. However, she found teaching to be an extremely rewarding experience and taught in the upper elementary grades for a total of nine years. After all of her children were in school, she began to think of writing again. Her first book, Season of Ponies, was published in 1964. She wrote more than 40 books during her lifetime including The Trespassers, Gib Rides Home, Gib and the Gray Ghost, and William's Midsummer Dreams. She has won numerous awards including three Newbery Honor books for The Egypt Game, The Headless Cupid and The Witches of Worm and the 1995 John and Patricia Beatty Award for Cat Running. She died of complications from a stroke on October 08, 2014 at the age of 87.