His guards led him to a steel door set into a large cavern wall.

I sat back against the cavern wall and let him talk.

He let his head fall back against the cavern wall.

The cold power of it drove the youth back against the cavern wall.

At last he reached a mouth in the cavern wall that had no ramp.

She was sitting with her back against the cavern wall.

And I found myself there, at the end of the line, sitting against the cavern wall with the standard across my lap.

The impact threw him against the cavern wall, with his arms spread wide.

He was sitting on the ground, his back to the cavern wall.

It was as though the cavern walls had come alive.