"The Warlord Chronicles" is a historical fantasy trilogy written by Bernard Cornwell. It is set in the late 5th and early 6th centuries, during the time of the legendary figure King Arthur. The series follows the story of Derfel Cadarn, a warrior and close companion of Arthur, as he navigates the tumultuous landscape of post-Roman Britain. The trilogy consists of three novels: "The Winter King," "Enemy of God," and "Excalibur." These books blend historical events with mythological elements, exploring themes of loyalty, power, and the struggle between paganism and Christianity. The narrative is rich in detail, bringing to life the characters and conflicts of this legendary era.