Alvarado and his soldiers attended as spectators, some of them taking their station at the gates as if by chance, and others mingling in the crowd. They were all armed,--a circumstance which, as it was usual, excited no attention. The Aztecs were soon engrossed by the exciting movement of the dance, accompanied by their religious chant and wild, discordant minstrelsy. While thus occupied, Alvarado and his men, at a concerted signal, rushed with drawn swords on their victims. Unprotected by armor or weapons of any kind, they were hewn down without resistance by their assailants, who in their bloody work, says a contemporary, showed no touch of pity or compunction.[93] Some fled to the gates, but were caught on the long pikes of the soldiers. Others, who attempted to scale the _coatepantli_, or Wall of Serpents, as it was called, which surrounded the area, shared the like fate, or were cut to pieces, or shot by the ruthless soldiery. The pavement, says a writer of the age, ran with streams of blood, like water in a heavy shower.[94] Not an Aztec, of all that gay company, was left alive! It was repeating the dreadful scene of Cholula, with the disgraceful addition that the Spaniards, not content with slaughtering their victims, rifled them of the precious ornaments on their persons! On this sad day fell the flower of the Aztec nobility. Not a family of note but had mourning and desolation brought within its walls.[95] And many a doleful ballad, rehearsing the tragic incidents of the story, and adapted to the plaintive national airs, continued to be chanted by the natives long after the subjugation of the country.[96] Various explanations have been given of this atrocious deed. But few historians have been content to admit that of Alvarado himself. According to this, intelligence had been obtained through his spies--some of them Mexicans--of an intended rising of the Indians. The celebration of this festival was fixed on as the period for its execution, when the caciques would be met together and would easily rouse the people to support them. Alvarado, advised of all this, had forbidden them to wear arms at their meeting. While affecting to comply, they had secreted their weapons in the neighboring arsenals, whence they could readily withdraw them. But his own blow, by anticipating theirs, defeated the design, and, as he confidently hoped, would deter the Aztecs from a similar attempt in future.[97] Such is the account of the matter given by Alvarado. But, if true, why did he not verify his assertion by exposing the arms thus secreted? Why did he not vindicate his conduct in the eyes of the Mexicans generally, by publicly avowing the treason of the nobles, as was done by Cortés at Cholula? The whole looks much like an apology devised after the commission of the deed, to cover up its atrocity.