Zebatinsky rose. “Well, agreed.—This is all confidential, now.”

“Perfectly. You will have all your information back when I tell you what change to make and you have my word that I will never make any further use of any of it.”

The nuclear physicist stopped at the door. “Aren’t you afraid I might tell someone you’re not a numerologist?”

The numerologist shook his head. “Who would believe you, my friend? Even supposing you were willing to admit to anyone that you’ve been here.”

On the twentieth, Marshall Zebatinsky was at the paint-peeling door, glancing sideways at the shop front with the little card up against the glass reading “Numerology,” dimmed and scarcely legible through the dust. He peered in, almost hoping that someone else would be there already so that he might have an excuse to tear up the wavering intention in his mind and go home.

He had tried wiping the thing out of his mind several times. He could never stick at filling out the necessary data for long. It was embarrassing to work at it. He felt incredibly silly filling out the names of his friends, the cost of his house, whether his wife had had any miscarriages, if so, when. He abandoned it.

But he couldn’t stick at stopping altogether either. He returned to it each evening.

It was the thought of the computer that did it, perhaps; the thought of the infernal gall of the little man pretending he had a computer. The temptation to call the bluff, see what would happen, proved irresistible after all.

He finally sent off the completed data by ordinary mail, putting on nine cents worth of stamps without weighing the letter. If it comes back, he thought, I’ll call it off.

It didn’t come back.

He looked into the shop now and it was empty. Zebatinsky had no choice but to enter. A bell tinkled.

The old numerologist emerged from a curtained door.