The "Warlord Chronicles" is a historical fantasy series written by Bernard Cornwell. It is set in the early medieval period of Britain, focusing on the legendary figure of Arthur and the conflicts surrounding his reign. The series combines elements of history and mythology, exploring themes of power, loyalty, and warfare. The trilogy consists of three novels: The Winter King, Enemy of God, and Excalibur. These books present a gritty and realistic portrayal of the Arthurian legend, emphasizing the struggles of various characters, including Merlin and Guinevere, as they navigate a world filled with political intrigue and brutal battles.