<P> Alvarado, the conquistadors and the Tlaxcalans retreated to their base in the Palace of Axayacatl and secured the entrances . Alvarado ordered his men to shoot their cannons, crossbows and arquebuses into the gathering crowd . The result either preempted or triggered the Aztec revolt, which was, however, inevitable from the moment of Moctezuma's capture and was accelerated by the split of the Spanish forces . Alvarado forced Moctezuma to appeal to the crowd outside the Palace and this appeal temporarily calmed them . </P> <P> The massacre had the result of resolutely turning all the Aztecs against the Spanish and completely undermining Moctezuma's authority . </P> <P> Alvarado sent for word to Cortés of the events, and Cortés hurried back to Tenochtitlan on June 24 with 1,300 soldiers, 96 horses, 80 crossbowmen, and 80 arquebusiers . Cortés also came with 2,000 Tlaxcalan warriors on the journey . Cortés entered the palace unscathed, as the hostilities have not started yet, although the Aztecs had probably planned to ambush him . The Aztecs had already stopped sending food and supplies to the Spaniards . They became suspicious and watched for people trying to sneak supplies to them; many innocent people were slaughtered because they were suspected of helping them . A few days after the great forces of Cortés got into Tenochtitlan, the roads were shut and the causeway bridges were raised . The Aztecs halted any Spanish attacks or attempts to leave the palace . Every Spanish soldier that was not killed was wounded . </P> <P> Cortés failed to grasp the full extent of the situation, as the attack on the festival was the last straw for the Aztecs, who now were completely against Moctezuma and the Spanish . The military gains of the attack therefore had a serious political cost for Cortés . His new followers were greatly disturbed at the power of the Aztecs, and held Cortés to be a liar since nobody revered them and brought them food and gifts as Cortés had promised . </P>

Who warned against allowing the spaniards to enter tenochtitlan