Alvarado, with the cavalry, had hard work to keep off the numerous bodies who attacked our rear from the side towards Tlacupa, and had not advanced up to this fearful passage; there was only one cavalry soldier, recently arrived from Spain, who ventured too far, and perished with his horse. Alvarado was already coming up to our assistance, with a small body of horse, but fortunately not before we had made good our retreat beyond the deep gap; for, had he arrived a few minutes earlier, we should, no doubt, have faced about, fought our way back again into the town, and the Mexicans would certainly have cut us off to a man.

This battle took place on a Sunday, and the Mexicans were so elated with the victory they had gained over us, that they fell upon our camp with renewed courage, and in so large a body that they would certainly have taken it by storm but for our cannon and the desperate courage we displayed for the preservation of our lives. During this night, the whole of us remained under arms ready for action, and the horses stood ready saddled and bridled. Cortes was excessively grieved at the defeat we had sustained, and despatched a letter to Alvarado by one of the brigantines in which he told him not, under any circumstances, in future to pass beyond a gap or opening in the causeway before it had been quite filled up; and to keep the horses saddled all day and night, and to observe the utmost vigilance.

Our recent defeat having taught us prudence, we set about filling up the larger opening with the utmost expedition, and completed the work in four days; though it was a labour of great difficulty, and we were the whole time exposed to the attacks of the enemy, who killed six of our men and wounded several others. During the night, each company watched by turns to prevent the Mexicans from destroying our day's work.

As the Mexicans were encamped over against us, we could observe how they regulated their night watches: they were relieved four times during the night, and the men posted at such distances around a large fire, which was kept up till morning, that they could not be seen excepting at the moments when they poked the fire or when the next watch came to relieve. On some nights the fire became extinguished by the rain, but it was instantly relit; though everything was done in the utmost silence and not a word was exchanged, for they only communicated with each other by whistling. Many a time when we heard the guard approaching to relieve the watch, our crossbow-men and musketeers would shoot in among them at random, but without doing them the slightest injury, as they were posted in places which, even during broad daylight, were beyond the reach of our fire, particularly behind a deep ditch, which they had recently dug, and strengthened by a palisade and breastwork. The Mexicans never omitted to return the compliment, and let fly many an arrow at us in the same way.

The conflict on the causeway was daily renewed, and we always made our attacks in the best order possible, so that we soon became masters of the fosse just mentioned, behind which the enemy encamped at nights, but we had each time to encounter vast bodies of men, and the whole of us were more or less wounded. After fighting the whole day until nightfall, there was naturally nothing further to be done than to return to our former position; but each time we commenced our retreat, other bodies of the enemy fell furiously upon us. The Mexicans were confident they should, one time or other, be able to annihilate us during one of these retreats, and they rushed upon us with the very fury of tigers, and came in so close upon us that we were compelled to fight foot to foot. But after a time, when we had got more accustomed to their mode of fighting, we first ordered the Tlascallans off the causeway; for these were very numerous, and delighted in combating with the Mexicans, under our immediate protection, though they only embarrassed our movements, of which the enemy were sly enough to take advantage. As soon as we considered the Tlascallans sufficiently in advance of us, we firmly closed our ranks and began our retreat, which was covered by our crossbow-men and musketeers, and by the four brigantines, which kept up with us, two on each side of the causeway. When we reached our encampment we dressed our wounds with bandages steeped in warm oil, and ate our supper off the maize-cakes, the herbs, and the figs which were sent us from Tlacupa. When this was finished, a strong detachment was again posted for the night at the opening in the causeway, and when daylight broke forth the battle was renewed. Such was our life, day after day; and however early we might march out, we always found the enemy ready to receive us, or they had already advanced up to our outposts and defied us to the combat under the most abusive language. Cortes, with his division, fared no better than we did; the fighting was continued night and day, and many of his men were killed and wounded. For the rest, matters stood with him exactly as they did with us on the causeway of Tlacupa, and two brigantines still continued cruizing on the lake at night-time to intercept the canoes laden with water and provisions for Mexico.

On one occasion two Mexicans of distinction were captured, who informed Cortes that forty pirogues and a great number of canoes lay hid among the reeds of the lake to make another attempt upon the two brigantines. Our general returned these men many thanks for what they had communicated, made them some presents, and promised to bestow considerable lands upon them after Mexico should be taken; they then described to him the spot where the armed pirogues lay in ambush, and the different places where the heavy stakes had been driven in, of which it was intended the brigantines should run foul while pursuing the pirogues in their sham flight.

Cortes was now determined to pay the enemy out in their own coin, and in the night-time concealed six of our brigantines in a place where the reeds stood very thick, at about a mile distant from the spot where the pirogues lay in ambuscade. Each brigantine was entirely covered with green boughs, and the men on board were ordered not to make the least noise during the whole of the night. Very early next morning, Cortes ordered one of our other brigantines to run out as usual to waylay the convoys of provisions going to Mexico. Both the above-mentioned distinguished Mexicans were taken on board to point out the place where the pirogues lay concealed, as our brigantine was purposely to steer in that direction. As soon as the Mexicans observed the brigantine approaching, they run out two of their canoes into the lake to allure the brigantine to their pursuit. The stratagem was laid on both sides in the very same way, and it was now only to be seen which should outdo the other. Our brigantine sharply pursued the two canoes, which were moving off in the direction of the concealed pirogues, but suddenly turned round as if she durst not venture nearer land. The instant the pirogues found the brigantine was turning back, they rushed forth out of the reeds and pulled away at their utmost speed in pursuit of her. The brigantine pretended to seek her safety in flight, and steered in the direction where our six others lay concealed, the pirogues following with the utmost confidence. When these were near enough, a shot was fired as a signal to the Spanish vessels, upon which they, in their turn, rushed out upon the pirogues and canoes with the utmost velocity, and bored several of them into the ground. Now the other brigantine also came up which had shammed flight, so that many of the canoes were captured, and numbers of the enemy killed and wounded. From this moment the Mexicans never again attempted similar stratagems on the lake, nor durst they venture so close in our neighbourhood with their convoys of provisions.

When the inhabitants of those towns which lay in the lake found that we were daily gaining fresh victories both by land and water, and that our allies of Chalco, Tezcuco, Tlascalla, and other districts, became more and more closely united to us, they began to consider the great losses they continually sustained, and the numbers of prisoners we took. The chiefs of these towns, therefore, held a conference among themselves, which ended in their sending an embassy to Cortes to sue for peace, and humbly to beg forgiveness for the past; adding, that they had been obliged to obey the commands of Quauhtemoctzin.

Cortes was uncommonly rejoiced to find these people were coming to their senses, and we others belonging to the divisions of Alvarado and Sandoval likewise congratulated ourselves on this circumstance.

Our general received the ambassadors kindly, and told them their towns had certainly deserved severe punishment, but he would, nevertheless, pardon them. The towns which sued for peace on this occasion were Iztapalapan, Huitzilopuzco, Cojohuacan, Mizquic, and all the other towns lying in that part of the lake which contained sweet water.