No sooner had the main body reached the field of battle, than, hastily forming, they poured such a volley from their muskets and cross-bows as staggered the enemy. Astounded, rather than intimidated, by the terrible report of the fire-arms, now heard for the first time in these regions, the Indians made no further effort to continue the fight, but drew off in good order, leaving the road open to the Spaniards. The latter, too well satisfied to be rid of the annoyance to care to follow the retreating foe, again held on their way. Their route took them through a country sprinkled over with Indian cottages, amidst flourishing fields of maize and maguey, indicating an industrious and thriving peasantry. They were met here by two Tlascalan envoys, accompanied by two of the Cempoallans. The former, presenting themselves before the general, disavowed the assault on his troops, as an unauthorized act, and assured him of a friendly reception at their capital. Cortés received the communication in a courteous manner, affecting to place more confidence in its good faith than he probably felt. It was now growing late, and the Spaniards quickened their march, anxious to reach a favorable ground for encampment before nightfall. They found such a spot on the borders of a stream that rolled sluggishly across the plain. A few deserted cottages stood along the banks, and the fatigued and famished soldiers ransacked them in quest of food. All they could find was some tame animals resembling dogs. These they killed and dressed without ceremony, and, garnishing their unsavory repast with the fruit of the _tuna_, the Indian fig, which grew wild in the neighborhood, they contrived to satisfy the cravings of appetite. A careful watch was maintained by Cortés, and companies of a hundred men each relieved each other in mounting guard through the night. But no attack was made. Hostilities by night were contrary to the system of Indian tactics.[122] By break of day on the following morning, it being the second of September, the troops were under arms. Besides the Spaniards, the whole number of Indian auxiliaries might now amount to three thousand; for Cortés had gathered recruits from the friendly places on his route,--three hundred from the last. After hearing mass, they resumed their march. They moved in close array; the general had previously admonished the men not to lag behind, or wander from the ranks a moment, as stragglers would be sure to be cut off by their stealthy and vigilant enemy. The horsemen rode three abreast, the better to give one another support; and Cortés instructed them in the heat of fight to keep together, and never to charge singly. He taught them how to carry their lances that they might not be wrested from their hands by the Indians, who constantly attempted it. For the same reason, they should avoid giving thrusts, but aim their weapons steadily at the faces of their foes.[123]