Obstinate resistance.
Sortie by the Mexicans.

Cortez was astonished at the obstinacy and efficiency of the resistance effected by the besieged. Gradually, however, the besiegers advanced, carefully filling up behind them the gaps in the causeway, that they might easily, if necessary, effect a retreat. They were taught the necessity of this precaution by a terrible repulse which they at one time encountered. Guatemozin, with a quick military eye, perceiving that the causeway occupied by one of the divisions of the Spaniards was impassable behind the Spaniards from trenches unfilled, and broken bridges, and the ruins of barricades, ordered the Mexican troops to retire, to lure the Spaniards forward. He then collected an enormous force, dispatching some in canoes along shallows which the brigantines could not approach, and then, at a signal from the great alarm drum on the summit of the temple, whose doleful tones could be heard for miles, the whole mass, with frantic rage, stimulated by hope, rushed upon the foe. The sudden assault, so impetuous, and sustained by such vast numbers, was quite successful. The Spaniards were driven back in confusion, horsemen and infantry crowding upon each other, till multitudes were forced, pell-mell, horses, and cannon, and men, into the chasms. Here the natives, in their light canoes, fell furiously upon them. More than twenty Spaniards were killed outright, and forty, mangled and bleeding, fell alive into the hands of the victors. There was no possible escape for the captives from their doom. They were to be sacrificed to the gods.

Preparations for sacrifice.
Torturing the captives.

This was an awful reverse, and the Spaniards were horror-stricken in contemplating the fate of their captured comrades. The capital was that night illuminated with great brilliance, and the splendor of the great pyramidal temple, blazing with innumerable torches, gleamed far and wide over the lake. It was an awful spectacle to the Spaniards, for they well knew the scenes which were transpiring on that lofty altar of idolatry. The preparations for the sacrifice could be distinctly seen, and the movements of the sacrificial priests. The white bodies of the victims could also be clearly discerned as they were stripped naked for the torture and the knife; and when the awful torture was applied, the shrieks of the wretched sufferers pierced the still night air, and penetrated the camp of the Spaniards. They listened appalled to those cries of agony, imagining that they could distinguish each victim by the sound of his voice.

This awful scene is thus described by Diaz:

The sacrifice.

"On a sudden, our ears were struck by the horrific sound of the great drum, the timbrels, horns, and trumpets on the temple. We all directed our eyes thither, and, shocking to relate, saw our unfortunate countrymen driven by blows to the place where they were to be sacrificed, which bloody ceremony was accompanied by the dismal sound of all the instruments of the temple. We perceived that when they had brought the wretched victims to the flat summit of the body of the temple, they put plumes upon their heads, and made them dance before their accursed idols. When they had done this, they laid them upon their backs on the stone used for the purpose, where they cut out their hearts alive, and having presented them, yet palpitating, to their gods, they drew the bodies down the steps by the feet, where they were taken by others of their priests. Let the reader think what were our sensations on this occasion. O heavenly God! said we to ourselves, do not suffer us to be sacrificed by these wretches. Do not suffer us to die so cruel a death. And then, how shocking a reflection, that we were unable to relieve our poor friends, who were thus murdered before our eyes."

The Mexicans are elated by their victory.
Shrewdness of Cortez.

This victory elated the Mexicans exceedingly. They cut off the heads of the sacrificed Spaniards, and sent them to the adjacent provinces, to prove that their gods, now appeased by this signal offering of blood, had abandoned the enemy. The priests sent the assurance far and wide that victory was now certain, as the oracles had returned the response that in eight days the detested enemy should be entirely destroyed. This prediction exerted a great influence upon a superstitious people. Many of the natives who had joined Cortez deserted his cause, and even the Tlascalans began to waver. The prudence and shrewdness of Cortez again met the danger and averted it. For eight days he made no advance, but merely stood on the defensive. The predicted time having expired, he said, "You see that the gods have deceived the Mexicans. They have espoused our cause."

His allies.