Among the men who had followed Narvaez was a Negro who had brought with him the germs of small-pox, which were communicated to the Aztecs in the city. It spared neither rich nor poor, as one of the first victims was their leader, Cuitlahua. The electors chose his nephew to succeed him, the youthful Guatemoc, or, as he was commonly called, Guatemotzin. In some respects in spite of the lack of the sagacity and farsightedness of Cuitlahua, he was a better man for the problem, for he at once mustered his forces and launched them upon Cortes and the Tlascalans in the valley of Otumba. The Tlascalans had furnished shelter and provisions to Cortes, and had resolved to stand by their treaty with him, but they had not yet furnished him with any great assistance. A strong party in the council had been entirely opposed to doing anything whatever for him. Cortes practically had to fight the battle alone and the battle had to be won. He and his fought, as the saying is, with halters around their necks.
All day long the Spaniards and their few allies fought up and down the narrow valley. Defeat meant certain death. They must conquer or be tortured, sacrificed and eaten. It was Cortes himself who decided the issue. With Alvarado and a few of the other captains, he finally broke through the Aztec centre, with his own hand killed the Aztec general, to whom Guatemoc had committed the battle, and seized the Aztec standard. At the close of the long hours of fighting the natives broke and fled, and the supremacy of Cortes and the Spaniards was once more established.
Wavering Tlascala decided for Cortes and he was received with generous, royal and munificent hospitality, which accorded him everything he asked. Messengers were despatched to Hispaniola for reinforcements and every preparation made for the renewal of the campaign. During the fall, troops, horses, men, guns and thousands of the flower of the Tlascalan army were placed at Cortes's disposal. He occupied them by sending expeditions in every direction, thus restoring their morale and punishing the savage tribes who had revolted against the Spanish rule and had returned to their old allegiance to the Aztec emperor. The punishments were fearful. The resources of the Mexicans were gradually cut off and by the end of the year the Aztecs realized that they would have to fight their last battle alone. These successful campaigns reëstablished the prestige which the Spaniards had lost. The people everywhere knew that they were no longer gods, but they now enjoyed a higher reputation, that of being invincible.
Cortes was resolved to attack Mexico. With a prudence as great as his determination he decided to neglect no precaution which would insure his success. He caused to be built a number of brigantines by which he could secure the command of the lake, and thereby give access to the city for his troops and allies. These brigantines were built at Tlascala under the supervision of the sailors of the expedition. The rigging of the ships, which had been destroyed, was useful in fitting them out. They were built in pieces and arrangements were made to carry them over the mountains and put them together at the lake when the campaign began. Guns and provisions were also amassed. Powder was brought from Cuba and it was also made by means of the sulphur deposits of the volcanoes round about. The troops were daily drilled and trained. Daily prayers were held, and every effort was made to give the forthcoming campaign the spirit of a crusade. The strictest moral regulations were promulgated. In short, nothing was left undone to bring about the downfall of Mexico.
On his part, Guatemoc was not idle. He summoned to his assistance all the tribes that remained loyal to him, especially those to the west, not subjected to the Spanish attack. He strove by bribery to detach those who had given their adherence to Cortes. Vast numbers of allies assembled in Mexico, which was provisioned for a siege. Everything that occurred to the minds of these splendid barbarians was done. After having done all that was possible, with resolution which cannot be commended too highly, they calmly awaited the onset of the Spaniards.
On Christmas day, 1520, Cortes took up the march over the mountains again for the great city of the cactus rock.
XII. The Siege and Destruction of Mexico
It was April of the next year when Cortes at last arrived before the city and began the siege. The force which he had mustered for this tremendous undertaking consisted of seven hundred Spanish infantry, one hundred and twenty arquebuses, eighty-six horsemen, twelve cannon, and a countless multitude of Tlascalan fighters together with numbers of slaves and servants.
As the city was connected with the mainland by three causeways, it was necessary to invest it on three sides. The army was divided into three equal divisions. He himself commanded the force that was to attack along the south causeway; with him was Sandoval, his most trusted and efficient lieutenant; Alvarado led that which was to advance over the west causeway and Olid was to close the north causeway. The brigantines were brought over the mountains by hand by thousands of Tlascalans. There were no vehicles or highways of any sort in Mexico; the Mexicans not having domesticated any animals there was no use for anything broader than a foot-path, a fact which throws an interesting side-light on their civilization, by the way. These Spanish boats were put together on the shores of the lake and when they were launched they served to close the ring of steel which surrounded the doomed city.