Such is Barbour's story. Taking it, meantime, as it stands, let us see what the English had been doing in the south-west. The details of operation are very scanty. Percy, the King's lieutenant on the western March, had exerted himself during June, July and August in fortifying and provisioning the castles. Lochmaben Castle fell on July 11, and Prince Edward felt himself free to go to Valence at Perth a few days later, and to carry through the siege of Kildrummy by the middle of September. He seems to have acted with more zeal than prudence. Rishanger says he took 'such vengeance that he spared neither sex nor age; towns, too, and hamlets, wherever he came he set on fire, and he mercilessly devastated the country.' This conduct 'is said to have gravely displeased the King his father, who chid him severely.' The King had moved northwards by slow stages, borne in a litter on horseback. It was September 29 when he reached the priory of Lanercost, eight miles from Carlisle, and this house he made his headquarters till March 26. In September, the siege of Dunaverty was proceeding under the direction of Sir John Botetourte, the King's ablest engineer. The local people were very slack in aiding the English, and Edward, on September 25, ordered Sir John de Menteith to compel them to supply the besiegers with provisions and necessaries, 'if they will not with a good grace.' Next month Edward empowered Sir John of Argyll to receive to his peace, on special conditions, Donald of Islay, Gotheri his brother, John MacNakyld, and Sir Patrick de Graham. The conditions suggest that they had been in a position to drive a good bargain; and the submission of the first three at least may, perhaps, be connected with the capitulation of Dunaverty towards the end of October.