By Janice May Udry, Author & Maurice Sendak, Illustrator. James used to be my friend. But today he is my enemy. James and John are best friends—or at least they used to be. They shared pretzels, umbrellas, and even chicken pox. Now James always wants to be boss, and John doesn't want to be friends anymore. But when he goes to James' house to tell him so, something unexpected happens. For ages 4 and up.