Ron turns towards the entrance of the hidden chamber. "Look at the way
the dust is swirling around at the bottom of the stairs."
"Yes, the air current is making it move more than the rest of the dust,"
smiles Sheri. "Do you want me to explain how that works?"
"Yes, but not the dust at the bottom of the stairs," states Ron, as he
turns to the side. "I would like you to explain the same thing happening
over by the wall at the end of the smooth area around those small
rocks."
Sheri follows Ron's outstretched arm, and there is the same pattern in
the dust by the wall. There are only two areas in the hidden cave below
the cliff where the air is moving the dust. The air in the rest of the
Chamber is still because the dust is just falling straight down.