His eye was drawn by movement at the building’s front entrance. Two people wanted to leave the building. To that end, they were standing framed in its doorway. But they were somewhat torn between fear of what was behind them and fear of what was ahead. Behind them the building was undergoing a gradual, staged collapse, or settling, as one failed floor accordioned into the one below it and the weight of the structure was cruelly redistributed. Each of these events led to a vast exhalation of dust from all the building’s orifices including the front door; so the two people Sokolov was looking at tended to vanish at random intervals, for a few seconds at a time, as a nebula of dust puffed out of the door and then subsided. Nothing was quite horizontal or vertical anymore, so big messes of debris tended to skid off the top of the pile and accelerate toward the street and strike it with impacts that Sokolov could feel in his gonads and that must be even more impressive to those people in the doorway.