The revolt against the lieutenant Alvarado was generally attributed to his fiery impetuosity, and to the inhuman and motiveless slaughter committed by the Spanish troops, under his authority, during the celebration of a solemn Aztec festival, called the "incensing of Huitzilopotchtli." Six hundred victims, were, on that occasion, slain by the Spaniards, in cold blood, in the neighborhood of the Great Temple; nor was a single native, engaged in the mysterious rites, left alive to tell the tale of the sudden and brutal assault. Alvarado, it is true, pretended that his spies had satisfactorily proved the existence of a well founded conspiracy, which was designed to explode upon this occasion; but the evidence is not sufficient to justify the disgraceful and horrid deed that must forever tarnish his fame. It is far more probable that rapacity was the true cause of the onslaught, and that the reckless companion of the conqueror, who had been entrusted with brief authority during his absence, miscalculated the power of his Indian foe, and confounded the warlike Mexican of the valley with the weaker soldiers, dwelling in more emasculating climates, whom he had so rapidly confounded and overthrown in his march to the capital. It may well be supposed that this slaughter, combined with the other causes of discontent already existing among the Aztecs, served to kindle the outraged national feeling with intense hatred of the invaders. The city rose in arms, and the Spaniards were hemmed within their defences. Montezuma himself addressed the people from the battlements, and stayed their active assault upon the works of Alvarado; but they strictly blockaded the enemy in his castle, cut off all supplies, and entrenched themselves in hastily constructed barricades thrown up around the habitation of the Spaniards, resolved to rest behind these works until despair and famine would finally and surely throw the helpless victims into their power. Here the invaders, with scant provisions and brackish water, awaited the approach of Cortéz, who received the explanations of Alvarado with manifest disgust:--"You have been false to your trust," said he, "you have done badly, indeed, and your conduct has been that of a madman!"