After the disasters and fatigues of the _noche triste_, the melancholy and broken band of Cortéz rested for a day at Tacuba, whilst the Mexicans returned to their capital, probably to bury the dead and purify their city. It is singular, yet it is certain, that they did not follow up their successes by a death blow at the disarmed Spaniards. But this momentary paralysis of their efforts was not to be trusted, and accordingly Cortéz began to retreat eastwardly, under the guidance of the Tlascalans, by a circuitous route around the northern limits of lake Zumpango. The flying forces and their auxiliaries were soon in a famishing condition, subsisting alone on corn or on wild cherries gathered in the forest, with occasional refreshment and support from the carcase of a horse that perished by the way. For six days these wretched fragments of the Spanish army continued their weary pilgrimage, and, on the seventh, reached Otumba on the way from Mexico to Tlascala. Along the whole of this march the fainting and dispirited band was, ever and anon, assailed by detached squadrons of the enemy, who threw stones and rolled rocks on the men as they passed beneath precipices, or assaulted them with arrows and spears. As Cortéz advanced, the enemy gathered in his rear and bade him "Go on whither he should meet the vengeance due to his robbery and his crimes," for the main body of the Aztecs had meanwhile passed by an eastern route across the country, and placed itself in a position to intercept the Spaniards on the plains of Otumba. As the army of the conqueror crossed the last dividing ridge that overlooked the vale of Otompan, it beheld the levels below filled, as far as eye could reach, with the spears and standards of the Aztec victors, whose forces had been augmented by levies from the territory of the neighboring Tezcoco. Cortéz presented a sorry array to be launched from the cliffs upon this sea of lances. But he was not the man to tremble or hesitate. He spread out his main body as widely as possible, and guarded the flanks by the twenty horsemen who survived the _noche triste_, and the disastrous march from Tacuba. He ordered his cavalry not to cast away their lances, but to aim them constantly at the faces of the Indians, whilst the infantry were to thrust and not to strike with their swords;--the leaders of the enemy were especially to be selected as marks; and he, finally, bade his men trust in God, who would not permit them to perish by the hands of infidels. The signal was given for the charge. Spaniard and Tlascalan fought hand to hand with the foe. Long and doubtfully the battle raged on both sides, until every Spaniard was wounded. Suddenly Cortéz descried the ensignia of the enemy's commanding general, and knowing that the fortunes of the day, in all probability, depended upon securing or slaying that personage, he commanded Sandoval, Olid, Alvarado, and Avila to follow and support him as he dashed towards the Indian chief.