The tranquillity of the capital was but brief. In less than a week rumors came that the terrible white warrior was not killed, but alive, strong and determined as ever. Many of the Aztecs conceived him to be immortal, and it is scarcely to be wondered at. Cortés had gathered together the little remnant of his army, who crept along a winding route north of the city absolutely ignorant of their way, and what they might encounter. When light came, so that they were observed, stones and arrows were aimed at them by chance natives from above. For several days and nights they slowly advanced, living on the few ears of maize they found; for all provision was carried off from the deserted villages they passed through by the inhabitants as soon as they saw them approach. Cortés was always brave, cheerful, and even encouraging in these dark days. In this toilsome march seven days were passed, and then they came upon the strange pyramid of the sun and moon, at San Juan Teotihuacan, supposed to be the work of the earliest dwellers upon Anahuac, older than the Toltecs. These they make no mention of in their narrative, and we may well suppose they scarcely noticed them, for a sight more impressive and awe-inspiring soon after met their eyes, as they turned the crest of a ridge they had been climbing,--a full-fledged army stretched out before them, filling up the valley of Otumba, and giving it the appearance of being covered with snow, for the warriors were dressed in white cotton mail. Cuitlahua had lost no time. As soon as he heard of the survival of the invader's army, he wasted not a moment. No puerile fear, no fatalistic paralysis restrained his understanding. Ably seconded by the warriors of the army, now roused to the importance of the occasion, he gathered a noble army. Every chief took the field with his whole force, and in a wonderfully short space of time a large army was collected and marched against the fugitives, having learned their course among the mountains. [Illustration: PYRAMID AT TEOTIHUACAN]