It was nearly dusk when the squadron, coasting along the great southern causeway, anchored off the point of junction, called Xoloc, where the branch from Cojohuacan meets the principal dike. The avenue widened at this point, so as to afford room for two towers, or turreted temples, built of stone, and surrounded by walls of the same material, which presented altogether a position of some strength, and, at the present moment, was garrisoned by a body of Aztecs. They were not numerous, and Cortés, landing with his soldiers, succeeded without much difficulty in dislodging the enemy and in getting possession of the works. It seems to have been originally the general’s design to take up his own quarters with Olid at Cojohuacan. But, if so, he now changed his purpose, and wisely fixed on this spot as the best position for his encampment. It was but half a league distant from the capital, and, while it commanded its great southern avenue, had a direct communication with the garrison at Cojohuacan, through which he might receive supplies from the surrounding country. Here, then, he determined to establish his headquarters. He at once caused his heavy iron cannon to be transferred from the brigantines to the causeway, and sent orders to Olid to join him with half his force, while Sandoval was instructed to abandon his present quarters and advance to Cojohuacan, whence he was to detach fifty picked men of his infantry to the camp of Cortés. Having made these arrangements, the general busily occupied himself with strengthening the works at Xoloc and putting them in the best posture of defence.