When Tungata stepped up beside her, he saw that she had exposed a square vertical shaft, into one wall of which were set stone steps.

In the fire stair off the main hallway is the square shaft where the steel needle was secretly assembled.

It has a square shaft, the head is weathered and the gnomon is missing.

In a moment the walls of a square shaft twenty feet on a side were flowing upward past him.

Three hundred meters in, the corridor opened abruptly into the square central shaft of the mine.

Then he noticed a square shaft next to the door.

A stubby, square shaft projected from each gearbox at a right angle, sticking straight out of the wall.

The moonlight was coming, not from a door opening into the jungle, but from a square shaft in the roof, high above their heads.

The base element is a square shaft with four or five square panels on each side.

Bill looked up and saw they were in a square stone-faced shaft about fifteen feet high.