Notwithstanding the loss of booty and the humiliating retreat, the expedition had succeeded in its
main object, to inflict a severe lesson on the foe by desolating one of the finest cities in the valley, at the very threshold of the capital. The effect was noticed in the arrival, the day after the return to Tezcuco, of messengers from Otumba and several adjacent towns,36 penitently to renew their allegiance, which was never again broken. A number of other towns and domains followed the example, notably Chalco, a large and fertile district extending round Chalco Lake, and toward the south-eastward. It had fallen from the rank of an independent kingdom to that of a province tributary to the Aztecs. The severity of its taskmasters kept ever smouldering the flame of revolt, and deeply the people sighed for deliverance. Owing to the proximity of the Mexicans and the presence of their lawless garrisons, they like many others had not before ventured to cast off the yoke, but with the approach of the Spaniards they gathered courage, and two envoys were sent to implore protection.37
This accorded with Cortés’ plans, and Sandoval was instructed to assist them. His first order, however, was to escort to Tlascala with twenty horsemen and two hundred infantry the carriers, together with a number of warriors, who desired to return home with the booty so far acquired. Fresh supplies were likewise desired, and communication with Villa Rica must be kept open. They had not proceeded far before the Tlascaltecs, who had hastened in advance of the Spanish main body, found themselves attacked by a large force, which slew a number and captured the carriers’ train. Sandoval routed the assailants and recaptured most of the booty.38
From Tlascala Sandoval turned to Chalco. In certain maizefields in front of the capital the Mexicans stood prepared with twelve thousand warriors to dispute possession. He charged them at the head of his cavalry, but, though yielding for a moment, they rallied and with their