As a child, Clive Staples Lewis imagined many things . . . heroic animals and knights in armor and a faraway land called Boxen. He even thought of a new name for himself--at four years old, he decided he was more of a Jack. As he grew up, though, Jack found that the real world was not as just as the one in his imagination. No magic could heal the sick or stop a war, and a bully's words could pierce as sharply as a sword. So Jack withdrew into books...