The Myton disaster occurred on September 20, and on September 24 Edward raised the siege of Berwick. Certain chroniclers speak of intestine dissensions, and particularly of a quarrel with Lancaster over the appointment of wardens of town and castle once Berwick was taken. The Lanercost chronicler says Edward desired to detach a body to intercept the Scots, and with the rest to carry on the siege; but his magnates would not hear of it. He accordingly abandoned the siege, and marched westward to cut off the retreat of the Scots. Randolph had penetrated to Castleford Bridge, near Pontefract, and swept up Airedale and Wharfdale; and, passing by Stainmoor and Gilsland, he eluded Edward's army, and carried into Scotland many captives and immense plunder. It remained for Edward but to disband his troops, and go home, as usual, with empty hands. About a month later (November 1), when the crops were harvested in northern England, Randolph and Douglas returned with fire and sword. They burnt Gilsland, and passed down to Brough (Burgh) under Stainmoor; turned back on Westmorland, which they ravaged for ten or twelve days, and went home through Cumberland. They mercilessly burnt barns and the stored crops, and swept the country of men and cattle. Edward began to think of truce. In his letter of December 4 to the Pope, he represents that urgent proposals for peace had come to him from Bruce and his friends. In any case, the step was a most sensible one. On December 21, terms were agreed on, and next day Bruce confirmed them. This truce was to run for two years and the odd days to Christmas. Bruce agreed to raise no new fortresses within the counties of Berwick, Roxburgh, and Dumfries. He delivered the castle of Harbottle to Edward's commissioners, 'as private persons,' with the proviso that, unless a final peace were made by Michaelmas, it should be either redelivered to him or demolished. On August 25, 1321, Edward commanded that it should be destroyed 'as secretly as possible.' In autumn 1319, the Pope, at the instance of Edward, had given orders for a revival of the excommunications against Bruce and his friends; but on January 8, 1319-20, he cited Bruce and the Bishops of St Andrews, Dunkeld, Aberdeen, and Moray, to compear before him by May 1. The summons went unheeded; he had not addressed Bruce as King. Excommunications were again hurled at Bruce and his bishops, and Scotland was laid under ecclesiastical interdict. Meanwhile, however, the Scots 'barons, freeholders, and all the community of the realm'--no churchmen, be it observed--assembled at Arbroath Abbey on April 6, and addressed to his Holiness a memorable word in season. First, as to their kingdom and their King: