He took the first set of stairs almost at a run.

They had been waiting for him at the top of the stairs.

Maybe the door had been on the other side of the stairs!

At the top of the stairs, I turned and looked down.

At the top of the back stairs I made them wait.

She took a step toward the head of the stairs.

Getting no response, he went to the top of the stairs.

Someone was watching them from the top of the stairs.

He stood until she was gone, then went to the head of the stairs.

She was watching him from the top of the stairs.