At the end of a short passage was a vertical pit.

She got up and followed him, a deep vertical pit appearing suddenly in the center of her forehead, just under the red bangs.

IT was a vertical pit inside the wall.

He didn't crawl as far as the vertical pit through which he had descended.

Beyond the hole was a vertical pit that led downward inside the thick wall.

The end of the vertical pit was close below.

A vertical pit, a yard in diameter, went down for twenty feet.

Somewhere ahead must be another vertical pit, that would lead upward into the home of Crane Worthington.

Our disk had halted just where the vertical pit entered the roof, close beside one rock wall of the great space.

The vertical pit, two feet in diameter, went down 20 feet.