For a long time he crossed and recrossed the vast cave.

Its throat was a vast long cave, dry and bright.

What looked like vast caves stretched away on each side of the tunnel, and men lounged about in them.

She stood in a place like a vast cave, overly warm and humid.

I wanted to see that vast Mammoth cave and die.

It was as if the passage here debouched into some vast cave.

Right, not left-and the only way out of the vast cave was to the left!

On the other hand, wouldn't she be vulnerable in the vast caves by herself?

Sunlight filtered from an opening in the vast cave, far overhead.

Then lie smiled and walked away from the entrance to the vast caves.