We were no less assiduous in our warlike preparations, and the canals which had been dug for the launch of our brigantines were now of sufficient width and depth to swim vessels of considerable burden;[8] which, however, is not surprising, as 8000 Indians were daily occupied at this work.

_How Cortes marches against the town of Xaltocan, which lay in the midst of the lake, about twenty-four miles from Mexico, and from thence proceeds to other townships._

The Memoirs of the Conquistador Bernal Diaz del Castillo, Vol 2 (of 2) — Part 24

The materials for building the brigantines were transported to Tezcuco by about 15,000 Tlascallans, who in a few days grew weary of doing nothing; added to which, our provisions were beginning to fail; and as the Tlascallan general was excessively ambitious, and very courageous, he told Cortes he was desirous of rendering our emperor some signal service, and by measuring his strength with the Mexicans, give us some proof of his loyalty, and convince us of his courage; and at the same time to revenge the death of so many of his countrymen. Our general had merely to inform him at what point he should attack the enemy.

The Memoirs of the Conquistador Bernal Diaz del Castillo, Vol 2 (of 2) — Part 24

Cortes returned him many thanks for his kind offers, and informed him that he intended to march out himself on the following day with a body of troops. His attack would be directed against the town of Xaltocan, which lay twenty miles from Tezcuco, in the midst of the lake, and was connected with the mainland by a causeway. He had already thrice admonished the inhabitants of that town to sue for peace, and but very recently made them offers of peace through their neighbours of Tezcuco and Otumpan. However, they not only refused to send us messengers of peace, but treated our ambassadors with contempt, and even laid violent hands on them, and then sent them back with this answer to Cortes: "Only come, you will not find us unprepared; come whenever you like, you will always meet with the same reception, and death will be your portion! This was the answer they were desired to give, by command of their gods."

The Memoirs of the Conquistador Bernal Diaz del Castillo, Vol 2 (of 2) — Part 24

Cortes considered this expedition against the Xaltocans of no small importance, and was therefore determined to command in person. The troops he took with him consisted of two hundred and fifty Spanish foot, thirty horse, with a good number of musketeers and crossbow-men; accompanied by the whole of our Tlascallan friends, and a company of the best warriors of Tezcuco. Of our own officers Cortes selected Alvarado and Oli; Sandoval remaining behind for the protection of Tezcuco, and of our brigantines. We were indeed obliged to be particularly on our guard, for Mexico lay close at hand, nor could we altogether place confidence in the Tezcucans, as the Mexicans had so many friends and relations among them. Before his departure Cortes left especial orders with Sandoval and Lopez to expedite the building of the brigantines, and only allowed them fifteen days more to finish and launch them. He then, after having attended mass, set out on his march. In the neighbourhood of Xaltocan he came up with a large body of Mexicans, who had taken up a strong position, from which they imagined to make a successful attack upon the Spaniards and their horses. Cortes here placed himself at the head of the cavalry, and, after our musketeers and crossbow-men had fired in among the enemy, he charged their line full gallop, and killed several of them. The Mexicans then retreated to the mountains, where they were pursued by the Tlascallans, who slew above thirty more of their numbers. The first night Cortes encamped in a small hamlet, ordered frequent patrols, posted sentinels in all quarters, and observed every military precaution, as there were many considerable townships in this district. Here we learnt that Quauhtemoctzin had despatched large bodies of troops to the assistance of Xaltocan, which were stationed in canoes on the lake.