The Screwtape Letters is a thought-provoking urban fiction Christian novel written by C.S. Lewis. The story is presented in the form of a series of letters from Screwtape, a senior demon, to his nephew Wormwood, a junior tempter. Through these letters, Screwtape offers advice on how to undermine and corrupt the faith of a human being. This novel explores themes of spiritual warfare, temptation, and the power of God's grace. With its unique perspective and insightful commentary on human nature and the battle between good and evil, The Screwtape Letters is a captivating urban fiction Christian novel that challenges readers to examine their own beliefs and actions.