While it was going on, however, a terrible scourge swept over the country. Smallpox, a disease hitherto unknown there, broke out on the seacoast and swept across Mexico, carrying off great numbers--among the victims being Maxixca, the faithful friend of the Spaniards; and Cuitlahua, Montezuma's successor.
The latter was succeeded by Guatimozin, nephew of the two last monarchs, who had married his cousin, one of Montezuma's daughters. Like Cuitlahua he was a gallant prince, and had distinguished himself greatly in the attacks on the Spaniards, in Mexico. He continued the preparations Cuitlahua had begun for the defense; but, like him, was greatly hampered by the fact that a large proportion of the tribes recently conquered by the Aztecs had seized the opportunity, caused by the confusion in the empire, to throw off their allegiance; the royal orders being really obeyed only by the population of the Valley of Mexico, itself.
Before starting on his march towards Mexico, Cortez permitted several of his companions, who were disinclined to face a renewal of the trials and hardships they had suffered, to leave; placing his best ship at their disposal. Their loss was more than made up by the capture of two vessels sent by Velasquez, who was ignorant of the fate which had befallen Narvaez; and who considered it certain that Cortez was a prisoner in his hands. The ships sailed into port, where the captains and crews were at once seized, and were then easily persuaded to join Cortez. Two ships fitted out by the Governor of Jamaica also put into port, to repair damages after a storm; and their crews were also persuaded, by the liberal promises of Cortez, to abandon their service and join him. He thus received a reinforcement of at least a hundred and fifty well-armed men, together with fifty horses.
But this was not the end of the good fortune of Cortez. A merchant ship, laden with arms and military stores, touched at Cuba; and the captain, hearing of the discoveries in Mexico, thought that he should find a good market there. He therefore sailed to Vera Cruz, where his ship and cargo were purchased by Cortez, and the crew swelled the force under him.
By Christmas everything was ready for the advance. The army now amounted to six hundred men, forty of whom were cavalry, with eighty musketeers and crossbow men. It had also nine cannon taken from the ships. The force of the native allies which joined them was estimated at from one hundred and ten thousand, to one hundred and fifty thousand; and consisted not only of the Tlascalan troops, but of those of Cholula, Tepeaca, and other neighboring towns; who, after their defeat by Cortez, had submitted themselves to the Spanish rule.
But Cortez had no idea of taking all these with him, as it would be difficult to obtain provisions for such a host; and he left them behind, to bring on the vessels when completed, and to aid in further operations. He himself marched with the Spaniards and a small body of allies, and reached Tezcuco without opposition. The prince whom Montezuma had appointed to succeed Cacama, fearing the vengeance of the population, had fled to Tlascala; but returning, in hopes of finding a party there in his favor, was seized and put to death by Coanaco, another brother, who had been recognized as king by the Tezcucans.
When the Spaniards approached the city, they found it almost entirely deserted, the inhabitants having fled across the lake to Mexico. Their ruler had accompanied them, and Cortez appointed another brother in his place. This prince lived but a few months, and was succeeded by another member of the royal house--the prince who had, during Cacama's lifetime, obtained a large portion of his dominion; and who proved a valiant and faithful ally of the Spaniards, in their struggle with his countrymen.
The Tezcucans gradually returned after Cortez had nominated a new sovereign, and Cortez at once set a large number of them to dig a canal from the town itself to the lake, so that the men putting together the ships could labor under his very eye.
Several of the cities round sent in to make their submission; and a week after his arrival Cortez marched, with a body of Spaniards and allies, against Iztapalapan, a town of fifty thousand inhabitants, lying near the narrow tongue of land dividing the great lake from that of Xochicalco.
The natives came out to meet them, and fought bravely, but were driven into the city. The greater part of those who could not escape were slaughtered. While engaged in the work of plunder, the Spaniards were alarmed by a rush of water; the natives having broken the bank of the great lake. The troops with the greatest difficulty escaped with their lives, many of the allies being drowned.