Now we have two major pieces, plus three wall panels.

We were all inside when the guy slid the wall panel closed behind us without another word.

He wondered why, and then saw a small steady red light on a wall panel near the door.

When the wall panels are in place they will support the ceiling.

Finally he called up the forward view, closed the wall panel and turned toward her.

"Excuse me," he said and walked over to the red wall panel.

On the wall panel above him, a red light began to flash.

The red button was still there behind its wall panel.

The guard stopped, pushed a wall panel, and opened a door.

"It could batter down the wall panel and open the door."