No satisfactory reasons ever have been assigned for this extraordinary step on the part of the French king. He had been for months engaged in collecting a huge army, and he had now an opportunity of fighting the English in a fair field with a force four times as great as their own. The only means indeed of accounting for his conduct is by supposing him affected by temporary aberration of mind, which many other facts in his history render not improbable. The fits of rage so frequently recorded of him border upon madness, and a number of strange actions highly detrimental to his own interests which he committed can only be accounted for as the acts of a diseased mind. This view has been to some extent confirmed by the fact that less than half a century afterwards insanity declared itself among his descendants. A few hours after the departure of the French the French standard was lowered on the walls of Calais, and news was brought to Edward that the governor was upon the battlements and desired to speak with some officers of the besieging army. Sir Walter Manny and Lord Bisset were sent to confer with him, and found that his object was to obtain the best terms he could. The English knights, knowing the determination of the king on the subject, were forced to tell him that no possibility existed of conditions being granted, but that the king demanded their unconditional surrender, reserving to himself entirely the right whom to pardon and whom to put to death. The governor remonstrated on the severe terms, and said that rather than submit to them he and his soldiers would sally out and die sword in hand. Sir Walter Manny found the king inexorable. The strict laws of war in those days justified the barbarous practise of putting to death the garrison of a town captured under such circumstances. Calais had been for many years a nest of pirates, and vessels issuing from its port had been a scourge to the commerce of England and Flanders, and the king was fully determined to punish it severely. Sir Walter Manny interceded long and boldly, and represented to the king that none of his soldiers would willingly defend a town on his behalf from the day on which he put to death the people of Calais, as beyond doubt the French would retaliate in every succeeding siege. The other nobles and knights joined their entreaties to those of Sir Walter Manny, and the king finally consented to yield in some degree. He demanded that six of the most notable burghers of the town, with bare heads and feet, and with ropes about their necks and the keys of the fortress in their hands, should deliver themselves up for execution. On these conditions he agreed to spare the rest. With these terms Sir Walter Manny returned to Sir John of Vienne.