‘Leave his work behind, you mean?’

‘Yes. Most of us—all of us, in fact—drop work when we turn the bus over to the ground staff. We don’t remember it until we say hullo to the mechanic in charge next morning. But Bill got so that he would pore over maps of the route as if he had never flown the hop before.’

‘Why this interest in the route, do you think?’

‘Well, I did think maybe he was figuring out a way to avoid the bad weather areas. It did begin—the interest in maps, I mean—one time when he came in very late after being blown out of his way by one of those terrific hurricanes that come out of nowhere in that country. We had nearly given him up that time.’

‘Don’t you fly above the weather?’

‘On a long hop, of course. But when you’re flying freight you have to come down at the oddest places. So you’re always more or less at the mercy of the weather.’

‘I see. And you think Bill changed after that experience?’

‘Well, I think it left a mark on him. I was there when he came in. In the plane, I mean. I was waiting for him, on the field. And he seemed to me a bit—concussed, if you get me.’

‘Suffering from shock.’

‘Yes. Still back there, if you know what I mean. Not really listening to what you said to him.’