C.S. Lewis was one of the most famous atheists of the twentieth century. Before he returned to the Christian faith and wrote the Chronicles of Narnia series and Mere Christianity, Lewis struggled with anger toward God. This is the story of his pilgrimage to Christianity. Providing greater insight into the atheistic phase of Lewis's life than ever before, this book also helps Christians learn more about what leads someone to atheism and how to witness the Christian faith to them.