In that time they say that news arrived of a miracle in Cuzco, of something like a yauirca or amaru that had emerged from the mountain of Pachatusan, a very fierce beast, half a league long and thick, and two and a half fathoms in width, and with ears and fangs and whiskers; and it came by Yuncaypampa and Cinca, and from there it entered the lake of Quibipay. Then two sacacas of fire came out of Asoncata, and [onel passed Pontina [mountain] of Arequipa; and the other came down to and passing Guamanca, where there are three or four very high mountains covered with snow, those in which they say that there are animals with wings, and ears, and tails and four feet, and on top of their backs many spines like a fish; and from afar they say that it appeared to them [to be] all fire.The above words were written by those who saw the skies at night. Obviously, they did not understand all the aspects of the events that they witnessed. The events had to be translated into elements that their citizens could understand. It was not frightening because of its appearance, it was frightening because of what it did to the world that they knew.
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Bauer, B. S. & Dearborn, D. S. P. (1995) Astronomy and Empire in the Ancient Andes Austin, Texas: University of Texas at Austin.