The Camera Fiend by E.W. Hornung

The boy and girl sat long and late in the open window at the back of the house. The room would have been in darkness but for a flood of moonlight pouring over them. The only light in the house was in the room above, and they only saw its glimmer on the garden when a casual cloud hid the moon; but once Pocket had crept out into the garden to steal a look at the lighted window itself; and what he saw was the shadow of a huge bent head smoking a huge bent pipe, and dense clouds of shadow floating up the wall and over the ceiling.

It seemed hours since they had heard footstep or other sound upstairs or anywhere. There had been a brisk interval-and then an end-of more or less distant hansom-bells and motor-horns. There was no longer even a certain minute intermittent trembling of trifles on the walnut-tables, to which Pocket had become subconsciously accustomed in that house, so that he noticed its absence more than the thing itself. It was as though the whole town was at rest, and the tunnels under the town, and every single soul above or below ground, but those two white faces in the moonlight, and perhaps one other overhead.