On the side of the besiegers, Kirkcaldy’s departure which, according to the Diurnal of Occurrents, took place on the 26th of October, had filliped the leaders into a display of energy. On the Tuesday following it, the Governor and the Lords with him, anxious to put an end to the siege before the arrival of supplies from England, sent to offer the rebels the restitution of their lands, heritages, tacks, benefices and moveables, on condition that they should surrender the Castle and give up young Hamilton. The proposal was met with a curt refusal. Three days later preparation was made for a vigorous attack; and four cannons, a battering culverin, two smaller culverins, and some double falcons were sent to the west trenches for the purpose of battering the sea-tower that stood at the north-west, and also the west wall. Then, when all this artillery had been brought into position, the cannonade began from two sides at once. On the first day it lasted without cessation from seven in the morning till four in the afternoon. The fire was unusually effective. That from the new battery brought down all the battlements and the top-storey of the sea-tower, and the whole roof of the apartments overlooking the shore. On the land-side the feathered bolts shot from the balistæ at the hall and chapel, broke in the roof, and drove those of the garrison who were stationed at that point to the safer shelter of the inner walls. Nor were the besieged inactive. Pointing their own cannon at the attacking artillery they retaliated by killing ‘John Borthwick, principal gunner, and sundry of the soldiers and men of war,’ and by wounding the Earl of Argyle’s master-gunner so seriously that he was reported to be still bedfast nearly two months later. On the morrow the Governor’s artillery again opened its fire, and kept it up as vigorously, though not more murderously, than the day before. Further damage was done to the high parts and roof, but the garrison once more escaped serious injury. The assailants were less fortunate, for they again lost a gunner, James Law, and three other men with him. Such ‘great slaughter made upon their gunners’ disheartened the leaders of the royal troops; and tacitly recognising their inability to take the Castle by open force, ‘they gave up further shooting with great artillery, and continued the siege with blockading and small fire arms.’