Cortes responded by the most profound expressions of respect and gratitude for all Montezuma's munificence to the Spaniards; he then hung round the emperor's neck a chain of coloured crystal, making at the same time a movement as if to embrace him, but was restrained by the two Aztec lords, who were shocked at the idea of such presumption. Montezuma then appointed his brother to conduct the Spaniards to their quarters in the city, and again entering his litter was borne off amid prostrate crowds in the same state in which he had come. The Spaniards quickly followed, and with colours flying and music playing entered the southern portion of the city of Mexico. The great wide street facing the causeway stretched for some miles in nearly a straight line through the centre of the city. In the clear atmosphere of the tableland it was easy to see the blue mountains in the distance beyond the temples, houses, and gardens which stood on either side of it. But what most impressed the Spaniards was the swarm of people who thronged every street, canal, and roof, and filled every window and doorway. To the Aztecs it must indeed have been a strange sensation when they beheld the fair-faced strangers, and for the first time heard their well-paved streets ringing under the iron tramp of the horses--those unknown animals which they regarded with superstitious terror. But their wonder changed to anger when they saw their detested enemies, the Tlascalans, stalking through their city with looks of ferocity and defiance.