After a short stay, the Earl of March was about to return to Dunbar; when he heard that the king, himself, was coming north with an army for the invasion of Scotland, and would then confer with him, and consider the terms on which he proposed to transfer his allegiance to him. A month later the king arrived at Alnwick, and there George Dunbar, Earl of March, entered into an agreement with him; in which he renounced all fealty to the King of Scotland, in consideration for which he was granted an estate in Lincolnshire, and other revenues. It was also agreed that the subjects of the King of England should support the earl, in time of necessity; and should be supported by him, and received into his fortresses. He was not, now, in a position to render any very efficient aid to the king; for Robert Maitland, his nephew, to whom he had committed the castle of Dunbar, had been summoned by Douglas, who had marched there with a strong force, by order of the king, and had surrendered the stronghold to him. However, he brought Dunbar's wife and family, and a considerable force of his retainers, safely across the border. He and Percy, together, then made a raid into the Douglas territory; and penetrated as far as Haddington, and collected much spoil from the country round. Douglas, however, came suddenly upon them in great force, and they were obliged to retreat hastily across the frontier again, abandoning their baggage and booty. The king's invasion was no more satisfactory. The Earl of March was unable to place Dunbar in his hands; and, as the Scots declined battle in the open, he laid siege to Edinburgh, but without success. Dunbar being closed to him, he was unable to obtain provisions, and was forced to fall back to England, having accomplished nothing. During his invasion, he had shown much more leniency than had been the custom with his predecessors. He had taken what was necessary to support the army, but had abstained from wasting the country, destroying villages and towns, and slaughtering the country people; and, so far from embittering the animosity between the two nations, he had produced a better state of feeling; and a truce was, in consequence, concluded for a year, at Kelso, by special commissioners from both kings, on the 21st of December, 1400. Chapter 8: Ludlow Castle.