The Aztecs fell back as he rushed on, leaving a lane for the group of galloping cavaliers. Cortéz and his companions soon reached the fatal spot, and the conqueror driving his lance through the Aztec leader, left him to be dispatched by Juan de Salamanca. This was the work of a moment. The death of the general struck a panic into the combined forces of Tenochtitlan and Tezcoco, and a promiscuous flight began on all sides. At sunset, on the 8th of July, 1520, the Spaniards were victors on the field of Otumba, and gathering together in an Indian temple, which they found on an eminence overlooking the plain, they offered up a _Te Deum_ for their miraculous preservation as well as for the hope with which their success reinspired them.[6] * * * * * The next day the invaders quitted their encampment on the battle field and hastened towards the territory of their friends, the Tlascalans. The Spaniards now presented themselves to the rulers of their allies in a different guise from that they wore when they first advanced towards Mexico. Fully equipped, mounted, and furnished with ammunition, they had then compelled the prompt submission of the Tlascalans, and, assuring their alliance, had conquered the Cholulans, and obtained the control even of the capital and person of the Aztec Emperor himself. But now they returned defeated, plundered, unarmed, poor, scarcely clad, and with the loss of a large part of those Indian allies who had accompanied the expedition. There was reason for disheartening fear in the breast of Cortéz, had it been susceptible of such an emotion. But the Lord of Tlascala reassured him, when he declared that their "cause was common against Mexico, and, come weal, come woe, they would prove loyal to the death!"