The Trap - Pilgrimage, Volume

Though the air cleared as they mounted the stairs, it had now a new smell, meeting and mingling with the thinned odours coming up from below, the smell of long-lying London dust. A staircase window, fast shut, showed a grimy sky. On the first floor were two rooms standing open, their doorways close together at right angles. The window of the large front room gave a blurred view of the house-fronts over the way. The back room was a small square, with a square window.