"Enemy of God" is a historical novel by author Bernard Cornwell, part of the Warlord Chronicles series. Set in the early medieval period, it explores the legendary figure of King Arthur and the conflicts between the pagan and Christian worlds in Britain. The story is told through the eyes of Derfel Cadarn, a warrior and follower of Arthur, who navigates the complexities of loyalty, faith, and warfare. The novel delves into themes of honor, betrayal, and the struggle for power. It portrays the harsh realities of life during this tumultuous time, highlighting the impact of religious change on society. Through vivid characters and gripping battles, "Enemy of God" brings to life the legendary tales of Arthurian lore.