The twelfth and thirteenth were without rest, the fire diminishing a little because the besiegers, warned by sad experience, did not wish to risk any more hand-to-hand conflicts. Understanding that theirs was a work of patience and skill, rather than of boldness and bravery, they opened slowly, and with security, roads and mines which should lead to the possession of the redoubt without loss of men. It was almost necessary to build our walls anew, or rather to substitute sacks of earth for them, an operation in which many friars, canons, civil officials, children, and women were occupied. The artillery was almost useless, the fosse about filled up, and it was necessary to continue the defence at short range. And so we wore through the thirteenth, protecting the works as we rebuilt them, suffering much, and seeing ourselves constantly decreasing in numbers, although new men came to take the places of the many that we lost. On the fourteenth the enemy's artillery tried to demolish our new walls, opening breaches for us on the front and at the sides. They did not dare to try a new assault, contenting themselves with opening a mine in such a direction that we could not in any way cover it with our fire, nor with that of any battery near by. Our valorous tantalizing earthworks would soon be covered by the fires of the French batteries, which were hurling to the four winds the earth of which they were formed. In this situation, surrender was inevitable sooner or later. Indeed we were at the mercy of the French arms as a ship at the mercy of the waves of the ocean. Flanked by roads and zig-zags, through which a strong and clever enemy might walk without danger, protected by all the resources of science, our bulwarks of defence were like one man surrounded by an army. We had no serviceable cannons, nor could we bring other new ones, because the walls would not have borne them. Our only resource was to keep watch of the redoubt in order to fly from it at the moment when the French should enter and destroy the bridge, in order to prevent them from following us. This was done; and on the night of the fourteenth they worked without rest on the mine, and we placed small mines at the bridge, hoping that the following day the enemy would try to mount by that wall. But this did not happen. Not daring to make another assault without all the precautions and security possible, they continued their work of digging very nearly up to our fosse. In this labor our indefatigable fusileers did them little damage. We were desperate, but without power to do anything. Our desperation was of no avail; it was a useless force, like the rage of a lunatic in his cage.