Beyond the Forest
The Road to Camlann: The Death of King Arthur is the third book in Rosemary Sutcliff's Arthurian trilogy, after "The Sword and the Circle" and "The Light Beyond the Forest". This book portrays the events that lead to the Battle of Camlann and the downfall of Camelot, including Guinevere and Lancelot's secret affair, and the betrayal of Arthur's illegitimate son Mordred.