Hanaud was directing the light of a pocket electric torch to the next flight of stairs.
Here the steps were carpeted, and once more the men crept up.

One after another they came out upon the next landing.

It ran, like those below it, along the side of the house from the back to the front, and the doors were all upon their left hand.

From beneath the door nearest to them a yellow line of light streamed out.
They stood in the darkness listening.

But not a sound came from behind the door.