I sat on the head of the staircase until his return.

You'll find the sp.ace at the top of the staircase in Building 29.

At the top of the staircase was a door which he had never seen before.

He went quickly to the top of the staircase and looked down.

She was looking down over the well of the staircase.

He was no longer on the step, but back at the top of the staircase.

At the bottom of the staircase, I turned to him.

She opened the door as I got to the top of the outside staircase.

After this came the main body of the church and the staircase.

She went in, and sat on the bottom step of the staircase.