Biographer AN Wilson goes in search of CS Lewis, the best-selling children's author and world-famous Christian writer, who was actually and underappreciated Oxford academic and an aspiring poet who never achieved the same success in writing verse as he did prose. The man who gave us Narnia was notoriously private and even his best friend, JRR Tolkien, didn't know about his marriage to an American divorcee late in life. He died on the same day as the assassination of JF Kennedy, and few were at his burial. However, his life as a writer is now being remembered alongside national literary heroes in Westminster Abbey's Poet's Corner.