It was only seven windows wide, and had consisted originally of one story only, but a low second story had been added, recognizable instantly as a piece of patchwork.

A great key hanging over the entrance announced the fact that there was a locksmith's workshop inside.

The courtyard was very low and narrow, and roughly paved with cobblestones, between which the grass sprouted luxuriantly.

At the further end of this court stood the "Hinterhaus," likewise two-storied, on the ground floor of which the locksmith carried on his resounding trade.
Accompanied by Stubbe, Wilhelm mounted the worn wooden staircase leading to the second floor.

The flat consisted of a kitchen and a room with one window.