Quotation from: The Gods of Mars

Written by: Edgar Rice Burroughs

"It was midnight when you released me from my chains," said Thuvia.
"Two hours later we reached the storeroom. There you slept for
fourteen hours. It must now be nearly sundown again. Come, we
will go to some nearby window in the cliff and make sure."

So saying, she led the way through winding corridors until at
a sudden turn we came upon an opening which overlooked the Valley
Dor.