Depression.

I spied Helen strap-hanging in a five o'clock tram. By twisting my head over my shoulder and by Helen gaining a few inches when the conductor passed, we came within talking distance.

“How are you?”

“Oh, I'm quite well,” said Helen. “So's Peter. Mary is staying with us just now.”

A fat woman rose, and by dint of shoe-horn squeezings managed to reach the door. When we straphangers had resettled ourselves, Helen and I found ourselves at smiling distance again. I thought about Mary, Helen's young sister—a nice child. I hadn't seen her for some time. Helen had been away and I was never accustomed to visiting Helen's people