King Arthur's Round Table had lasted many years, and the knights had done much to help the people of the country; yet there were traitors to the king among his own subjects. One of these traitors made war in a distant part of the kingdom, and Arthur went with most of his knights to punish him. His nephew, Sir Modred, the brother of Sir Gawain and Sir Gareth, ruled in his stead at Camelot.
Now Sir Modred was a wicked knight. He hated the king and the queen, and Sir Lancelot. Since King Arthur was absent a long time, Sir Modred had the opportunity of doing much harm. He let evil go unpunished; he allowed bad customs to come into the country; and at last he raised a rebellion against the good king.
When Arthur returned to Camelot to quell this rebellion, he had lost many of his faithful knights. Sir Hector was dead, and Sir Ulfius and Sir Brastias; Sir Kay was dead, and Sir Bors, and Sir Gawain. Sir Lancelot was far away. Sir Bedivere alone remained of those who had been with Arthur since he had first ruled in Wales and Britain.
The king and Sir Bedivere, with the help of such knights as still were faithful, tried to put down those rebels. They drove the traitors back until they came at length to Lyonnesse by the sea. Here the last great battle took place.
The night before the battle, Sir Bedivere heard the king praying. Then Arthur slept, and when he awakened he called to his friend:
"Sir Bedivere," he said, "I have had a dream. I thought that Sir Gawain came to me and told me that to-morrow I shall die."
"My lord, it is but a dream," answered Sir Bedivere. "You are great; you have done much good which will last forever, and you will live many years yet to perform many gracious acts. The day will soon dawn, and you will win the battle."
Arthur shook his head.