"And the fourth dimension?" I inquired, making a rapid mental calculation.

"One dollar to me," said Tripp. "For whiskey. Are you on?"

I smiled enigmatically and spread my elbows as if to begin writing again. But this grim, abject, specious, subservient, burr-like wreck of a man would not be shaken off. His forehead suddenly became shiningly moist.

"Don't you see," he said, with a sort of desperate calmness, "that this girl has got to be sent home to-day—not to-night nor to-morrow, but to-day? I can't do anything for her. You know, I'm the janitor and corresponding secretary of the Down-and-Out Club. I thought you could make a newspaper story out of it and win out a piece of money on general results. But, anyhow, don't you see that she's got to get back home before night?"

And then I began to feel that dull, leaden, soul-depressing sensation known as the sense of duty. Why should that sense fall upon one as a weight and a burden? I knew that I was doomed that day to give up the bulk of my store of hard-wrung coin to the relief of this Ada Lowery. But I swore to myself that Tripp's whiskey dollar would not be forthcoming. He might play knight-errant at my expense, but he would indulge in no wassail afterward, commemorating my weakness and gullibility. In a kind of chilly anger I put on my coat and hat.

Tripp, submissive, cringing, vainly endeavoring to please, conducted me via the street-cars to the human pawn-shop of Mother McGinnis. I paid the fares. It seemed that the collodion-scented Don Quixote and the smallest minted coin were strangers.

Tripp pulled the bell at the door of the mouldy red-brick boarding-house. At its faint tinkle he paled, and crouched as a rabbit makes ready to spring away at the sound of a hunting-dog. I guessed what a life he had led, terror-haunted by the coming footsteps of landladies.

"Give me one of the dollars—quick!" he said.

The door opened six inches. Mother McGinnis stood there with white eyes—they were white, I say—and a yellow face, holding together at her throat with one hand a dingy pink flannel dressing-sack. Tripp thrust the dollar through the space without a word, and it bought us entry.

"She's in the parlor," said the McGinnis, turning the back of her sack upon us.