On Christmas Eve the city throbbed with the clank of arms and the tramp of the great retinues of princes, kings and powerful lords who had come at the archbishop's summons, and by day and night the narrow ways were crowded with armed men. Long ere the dawn of Christmas Day, the lords and the common people betook themselves along the wide road which led across to the church, which then stood in a wide space amid fields, and all knelt therein to mass.
While it was yet dark a great strange cry rang out in the churchyard. Some ran forth, and there by the wall behind the high altar they saw a vast stone, four-square, that had not been there before, and in the middle thereof was stuck a great wedge of steel, and sticking therefrom by the point was a rich sword. On the blade were written words in Latin, which a clerk read forth, which said, 'Whoso pulleth this sword out of this stone and wedge of steel is rightwise born King of all Britain.'
The clerk ran into the church and told the archbishop, and men were all amazed and would have gone instantly to see this marvel, but the archbishop bade them stay.
'Finish your prayers to God,' he said, 'for no man may touch this strange thing till high mass be done.'
When mass was finished, all poured forth from the church and thronged about the stone, and marvelled at the words on the sword. First King Lot, with a light laugh, took hold of the handle and essayed to pull out the point of the sword, but he could not, and his face went hot and angry. Then King Nentres of Garlot took his place with a jest, but though he heaved at the sword with all his burly strength, till it seemed like to snap, he could not move it, and so let go at last with an angry oath. All the others essayed in like manner, but by none was it moved a jot, and all stood about discomfited, looking with black looks at one another and the stone.
'He that is rightwise born ruler of Britain is not here,' said the archbishop at length, 'but doubt not he shall come in God's good time. Meanwhile, let a tent be raised over the stone, and do ye lords appoint ten of your number to watch over it, and we will essay the sword again after New Year's Day.'
So that the kings and lords should be kept together, the archbishop appointed a great tournament to be held on New Year's Day on the waste land north of the city, which men now call Smithfield.
Now when the day was come, a certain lord, Sir Ector de Morven, who had great lands about the isle of Thorney, rode towards the jousts with his son, Sir Kay, and young Arthur, who was Sir Kay's foster-brother. When they had got nearly to the place, suddenly Sir Kay bethought him that he had left his sword at home.
'Do you ride back, young Arthur,' he said, 'and fetch me my sword, for if I do not have it I may not fight.'
Willingly Arthur turned his horse and rode back swiftly. But when he had arrived at the house, he found it shut up and none was within, for all had gone to the jousts. Then was he a little wroth, and rode back wondering how he should obtain a sword for his foster-brother.