Then the king dreamed a marvellous dream whereof he was sore adread.

But all this time King Arthur knew not that King Lot's wife was his sister.

Thus was the dream of Arthur: Him thought there was come into this land griffins and serpents, and him thought they burnt and slew all the people in the land, and then him thought he fought with them, and they did him passing great harm, and wounded him full sore, but at the last he slew them.
When the king awaked, he was passing heavy of his dream, and so to put it out of thoughts, he made him ready with many knights to ride a-hunting.

As soon as he was in the forest the king saw a great hart afore him.

This hart will I chase, said King Arthur, and so he spurred the horse, and rode after long, and so by fine force oft he was like to have smitten the hart; whereas the king had chased the hart so long, that his horse lost his breath, and fell down dead.