The Pilgrim’s Regress: An Allegorical Apology for Christianity, Reason and Romanticism. This little volume opened a thirty-year stream of books on Christian apologetics and discipleship that became a lifelong avocation. Between 1933 and his death in 1963, C.S. Lewis wrote books including the seven volume Chronicles of Narnia, The Screwtape Letters, The Great Divorce, and Mere Christianity, that nudged atheists and agnostics toward the faith, and encouraged and nurtured believers. As a good steward