Soon after darkness came on, Maxtla called a halt and his shattered forces went into camp. In the arrangement of the bivouac the wounded were placed apart from the regular organizations, and put in charge of surgeons, with which the armies were well supplied, and of whom the historian has said, in commendation: "Not with a view to prolonging the ill to extend the bill," as might be said of some modern practitioners, "was their skill directed, but to a speedy restoration of the patient to health."

Such a thing as a night attack was never considered by the Anahuacans in carrying on a war, and, so long as darkness covered the earth, an army of warriors could go to sleep with the assurance that they would not be disturbed by the enemy. A guard, therefore, was not established anywhere in Maxtla's army, except about the prisoners. This left the wounded almost free from surveillance.

Soon after the Tepanec forces went into camp a lad, apparently about fourteen or fifteen years of age, and rather stoutly built, might have been seen moving about among the soldiers. His dress was somewhat odd, indicating no particular connection or occupation. When asked as to who he was and where he lived, he answered, evasively, that he lived over near the lake, which was not a league away. He did not appear to be a person who might be suspected of having a special object in being there, and require watching. He was, therefore, permitted to move about of his own free will.

During the evening the youngster found opportunity to go among the wounded. He appeared to be searching for someone, for he scrutinized each person closely, as he passed. When he came to the tzin, and got a good look at him, his countenance quickly brightened—he had discovered the object of his search. Gaining Euetzin's attention, he gave him a sign of caution, and moved carelessly on.

The tzin recognized in the strange visitor a lad he had seen on several occasions, in the last few days before the battle, apparently doing duty as a messenger for someone in the allied army, and wondered greatly at his being in the Tepanec camp. He was sure from the boy's actions that he had something to communicate, and kept on the lookout for his return. He came, sure enough, and unconcernedly approached the tzin, who said:

"Do you wish to speak to me?"

In response to the inquiry the lad came quite close, and whispered:

"When the fires have burned out, and darkness hides you, come to a tree just beyond the camp—almost to the west—where you will find help to escape. Do not hesitate." Without waiting for a reply the strange youth turned slowly away, and disappeared.

Euetzin was greatly astonished. "What interest can the boy have in me, that he is here to aid in my escape?" he questioned. "And yet," he pursued, "he may be the agent of another. If I only might," he concluded, realizing his seemingly helpless condition. He had quite a little while in which to think over the matter before the fires would burn sufficiently low to enable him to withdraw from the camp unseen. He doubted his ability to succeed, for he was feeling very sore. His wound was a serious one, and that he might try to get away was not thought of by the doctors. He knew that it would be endangering his life to make the attempt, but when he considered that death was ahead of him if he remained a prisoner, he concluded that it had better be met in an effort to escape than at the hands of the Tepanec priests, later. Thus persuaded, he decided to take the risk.

When the time arrived at which he thought he might safely attempt to go he raised himself to a sitting posture, and looked about him to be assured that everything was favorable. Nothing could be seen or heard to deter him from starting at once, and quietly rolling from the stretcher onto his hands and knees, he crawled slowly and noiselessly from among the wounded warriors, careless as to whether they were sleeping or not, so long as his movements were not discovered. He almost forgot his suffering in the excitement he experienced from the hope of a possible escape, which grew stronger as, by degrees, he approached the limits of the camp. After getting safely beyond he attempted to rise to his feet, but found the exertion too painful to be endured, and sank back upon the ground, where he lay until the pain subsided, when he again started off, crawling. He had pursued, as nearly as he could estimate, a westerly course from the camp, and when he had gone a short distance farther from it, stopped to look for the tree alluded to by the boy. He discovered one off to his right, which he concluded must be the right one, and again resumed his slow and painful movement in its direction. It proved to be the tree referred to, for, on coming close to it, he was discovered by the lad, who was on the watch for him, and seemed highly delighted at his appearance.