high-bridged nose flaring, as though he could scent a new mystery.
He said, “Well, Mr. Wassell, tell me your story again from the beginning. Leave out
nothing, for one can’t tell when even the smallest detail may not be of the greatest importance.”
Wassell owned an important business in town, and in it he employed many robots and
also human beings.
Wassell did so, but there was nothing startling in the details at all and he was able to
summarize it this way. “What it amounts to, Mr. Smithson, is that I am losing money. Someone in
my employ is helping himself to small sums now and then. The sums are of no great importance,
each in itself, but it is like a small, steady oil loss in a machine, or the drip-drop of water from a
leaky faucet, or the oozing of blood from a small wound. In time, it would mount up and become
dangerous.”
“Are you actually in danger of losing your business, Mr. Smithson?”
“Not yet. But I don’t like to lose money, either. Do you?”
“No, indeed,” said Smithson, “I do not. How many robots do you employ in your
business?”
“Twenty-seven, sir.”
“And they are all reliable, I suppose.”
“Undoubtedly. They could not steal. Besides, I have asked each one of them if they took
any money and they all said they had not. And, of course, robots cannot lie, either.”
“You are quite right,” said Smithson. “It is useless to be concerned over robots. They are
honest, through and through. What about the human beings you employ? How many of them are
there?”
“I employ seventeen, but of these only four can possibly have been stealing.”
“Why is that?”
“The others do not work on the premises. These four, however, do. Each one has the
occasion, now and then, to handle petty cash, and I suspect that what happens is that at least
one of them manages to transfer assets from the company to his private account in such a way
that the matter is not easily traced.”
“I see. Yes, it is unfortunately true that human beings may steal. Have you confronted
your suspects with the situation?”
“Yes, I have. They all deny any such activity, but, of course, human beings can lie, too.”
“So they can. Did any of them look uneasy while being questioned?”
“All did. They could see I was a furious man who could fire all four, guilty or innocent.
They would have had trouble finding other jobs if fired for such a reason.”
“Then that cannot be done. We must not punish the innocent with the guilty.”
“You are quite right,” said Mr. Wassell. “I couldn’t do that. But how can I decide which one
is guilty?”
“Is there one among them who has a dubious record, who has been fired under uncertain
circumstances earlier in his career?”
“I have made quiet inquiries, Mr. Smithson, and I have found nothing suspicious about
any of them.”
“Is one of them in particular need of money?”
“I pay good wages.”
“I am sure of that, but perhaps one has some sort of expensive taste that makes his
income insufficient.”
“I have found no evidence of that, though, to be sure, if one of them needed money for
some perverse reason, he would keep it secret. No one wants to be thought evil.”
“You are quite right,” said the great detective. “In that case, you must confront me with
the four men. I will interrogate them.” His eyes flashed. “We will get to the bottom of this mystery,
never fear. Let us arrange a meeting in the evening. We might meet in the company dining room
over some small meal and a bottle of wine, so the men will feel completely relaxed. Tonight, if
possible.”
“I will arrange it,” said Mr. Wassell, eagerly.
Calumet Smithson sat at the dinner table and regarded the four men closely. Two of them
were quite young and had dark hair. One of them had a mustache as well. Neither was very good