Christian Apologetics is the attempt to explain and defend Christian theology and philosophy against the assault of postmodern imperatives like materialism and scientism. Apologetics brings reason and logic to the defense of faith, demonstrating that Christianity is both rational and reasonable. Our text is C.S. Lewis's The Screwtape Letters, a fictional account of a series of letters written by the devil Screwtape and addressed to his nephew Wormwood. The book is at once a shrewd indictment of godless materialism and a powerful assertion of the necessity of God from the perspective of reason and faith.