from the article:
From the Popol Vuh, or National Quiché History
[Excerpt from Part II]
“Brother, the bats have stopped moving. It looks like the sun has begun to rise,” said Ixbalanqué to Hunahpú.
“Perhaps. I am not sure,” answered Hunahpú, “Let me look…”
And when Hunapú stuck out his head, to see if dawn was breaking, Camazotz cut it off at the neck with a single blow.
“Hunahpú, is it morning yet?” Ixbalanqué asked. And when his brother did not reply, he yelled out, “Hunahpú! Where are you?”
Then Ixbalanqué understood the silence. […]