(From the Codex Florentino by Sahagun's informants)
At nightfall it began to rain, but it was more like a heavy dew than a rain. Suddenly the omen appeared, blazing like a great bonfire in the sky. It wheeled in enormous spirals like a whirlwind and gave off a shower of sparks and red-hot coals, some great and some little. It also made loud noises, rumbling and hissing like a metal tube placed over a fire. It circled the wall nearest the lakeshore and then hovered for a while above Coyonacazco. From there it moved out into the middle of the lake, where it suddenly disappeared. No one cried out when this omen came into view: the people knew what it meant and they watched it insilence.
Nothing whatever occurred on the following day. Our warriors and the Spanish soldiers merely waited in their positions.Cortes kept a constant watch, standing under a many colored canopy on the roof of the lord Aztautzin's house, which is near Amaxac. His officers stood around him, talking among themselves.