distance; when the rumor reached them that the rear-guard would be wholly overwhelmed without speedy relief. It seemed almost an act of desperation; but the generous hearts of the Spanish cavaliers did not stop to calculate danger when the cry for succor reached them. Turning their horses’ bridles, they galloped back to the theatre of action, worked their way through the press, swam the canal, and placed themselves in the thick of the _mêlée_ on the opposite bank.[178] The first gray of the morning was now coming over the waters. It showed the hideous confusion of the scene which had been shrouded in the obscurity of night. The dark masses of combatants, stretching along the dike, were seen struggling for mastery, until the very causeway on which they stood appeared to tremble, and reel to and fro, as if shaken by an earthquake; while the bosom of the lake, as far as the eye could reach, was darkened by canoes crowded with warriors, whose spears and bludgeons, armed with blades of “volcanic glass,” gleamed in the morning light. The cavaliers found Alvarado unhorsed, and defending himself with a poor handful of followers against an overwhelming tide of the enemy. His good steed, which had borne him through many a hard fight, had fallen under him.[179] He was himself wounded in several places, and was striving in vain to rally his scattered column, which was driven to the verge of the canal by the fury of the enemy, then in possession of the whole rear of the causeway, where they were reinforced every hour by fresh combatants from the city. The artillery in the earlier part of the engagement had not been idle, and its iron shower, sweeping along the dike, had mowed down the assailants by hundreds. But nothing could resist their impetuosity. The front ranks, pushed on by those behind, were at length forced up to the pieces, and, pouring over them like a torrent, overthrew men and guns in one general ruin. The resolute charge of the Spanish cavaliers, who had now arrived, created a temporary check, and gave time for their countrymen to make a feeble rally. But they were speedily borne down by the returning flood. Cortés and his companions were compelled to plunge again into the lake,--though all did not escape. Alvarado stood on the brink for a moment, hesitating what to do. Unhorsed as he was, to throw himself into the water, in the face of the hostile canoes that now swarmed around the opening, afforded but a desperate chance of safety. He had but a second for thought. He was a man of powerful frame, and despair gave him unnatural energy. Setting his long lance firmly on the wreck which strewed the bottom of the lake, he sprung forward with all his might, and cleared the wide gap at a leap! Aztecs and Tlascalans gazed in stupid amazement, exclaiming, as they beheld the incredible feat, “This is truly the _Tonatiuh_,--the child of the Sun!”[180] The breadth of the opening is not given. But it