Which two sentences show how the narrative point of view creates a sense of mystery and awe in the passage?
Mark and Garry were on a trekking trip in the Shenandoah mountains in Virginia.
"This site must be at least 9,000 years old," he said.
As they moved further down the walkway, the light became dimmer, and eventually they could not see anything around them.
"Can you believe what we just saw?"
The cavern here was unlike the other caverns because the sun poured in through an opening in the ceiling.