Here are the facts in the case as they were known in the beginning to Professor Augustus S. F. X. Van Dusen, scientist and logician. After hearing a statement of the problem from the lips of its principal he declared it to be one of the most engaging that had ever come to his attention, and —

But let me begin at the beginning:

The Thinking Machine was in the small laboratory of his modest apartments at two o’clock in the afternoon. Martha, the scientist’s only servant, appeared at the door with a puzzled expression on her wrinkled face.

“A gentleman to see you, sir,” she said.

“Name?” inquired The Thinking Machine, without turning.

“He — he didn’t give it, sir,” she stammered.

“I have told you always, Martha, to ask names of callers.”

“I did ask his name, sir, and — and he said he didn’t know it.”

The Thinking Machine was never surprised, yet now he turned on Martha in perplexity and squinted at her fiercely through his thick glasses.

“Don’t know his own name?” he repeated. “Dear me! How careless! Show the gentleman into the reception room immediately.”

With no more introduction to the problem than this, therefore, The Thinking Machine passed into the other room. A stranger arose and came forward. He was tall, of apparently thirtyfive years, clean shaven and had the keen, alert face of a man of affairs. He would have been handsome had it not been for dark rings under the eyes and the unusual white of his face. He was immaculately dressed from top to toe; altogether a man who would attract attention.

For a moment he regarded the scientist curiously; perhaps there was a trace of well-bred astonishment in his manner. He gazed curiously at the enormous head, with its shock of yellow hair, and noted, too, the droop in the thin shoulders. Thus for a moment they stood, face to face, the tall stranger making The Thinking Machine dwarf-like by comparison.

“Well?” asked the scientist.

The stranger turned as if to pace back and forth across the room, then instead dropped into a chair which the scientist indicated.

“I have heard a great deal about you, Professor,” he began, in a well-modulated voice, “and at last it occurred to me to come to you for advice. I am in a most remarkable position — and I’m not insane. Don’t think that, please. But unless I see some way out of this amazing predicament I shall be. As it is now, my nerves have gone; I am not myself.”

“Your story? What is it? How can I help you?”

“I am lost, hopelessly lost,” the stranger resumed. “I know neither my home, my business, nor even my name. I know nothing whatever of myself or my life; what it was or what it might have been previous to four weeks ago. I am seeking light on my identity. Now, if there is any fee —”

“Never mind that,” the scientist put in, and he squinted steadily into the eyes of the visitor. “What do you know? From the time you remember things tell me all of it.”

He sank back into his chair, squinting steadily upward. The stranger arose, paced back and forth across the room several times and then dropped into his chair again.

“It’s perfectly incomprehensible,” he said. “It’s precisely as if I, full grown, had been born into a world of which I knew nothing except its language. The ordinary things, chairs, tables and such things, are perfectly familiar, but who I am, where I came from, why I came — of these I have no idea. I will tell you just as my impressions came to me when I awoke one morning, four weeks ago.

“It was eight or nine o’clock, I suppose. I was in a room. I knew instantly it was a hotel, but had not the faintest idea of how I got there, or of ever having seen the room before. I didn’t even know my own clothing when I started to dress. I glanced out of my window; the scene was wholly strange to me.

“For half an hour or so I remained in my room, dressing and wondering what it meant. Then, suddenly, in the midst of my other worries, it came home to me that I didn’t known my own name, the place where I lived nor anything about myself. I didn’t know what hotel I was in. In terror I looked into a mirror. The face reflected at me was not one I knew. It didn’t seem to be the face of a stranger; it was merely not a face that I knew.

“The thing was unbelievable. Then I began a search of my clothing for some trace of my identity. I found nothing whatever that would enlighten me — not a scrap of paper of any kind, no personal or business card.”

“Have a watch?” asked The Thinking Machine.

“No.”

“Any money?”

“Yes, money,” said the stranger. “There was a bundle of more than ten thousand dollars in my pocket, in one-hundred-dollar bills. Whose it is or where it came from I don’t know. I have been living on it since, and shall continue to do so, but I don’t know if it is mine. I knew it was money when I saw it, but did not recollect ever having seen any previously.”

“Any jewelry?”

“These cuff buttons,” and the stranger exhibited a pair which he drew from his pocket.

“Go on.”

“I finally finished dressing and went down to the office. It was my purpose to find out the name of the hotel and who I was. I knew I could learn some of this from the hotel register without attracting any attention or making anyone think I was insane. I had noted the number of my room. It was twenty-seven.

“I looked over the hotel register casually. I saw I was at the Hotel Yarmouth in Boston. I looked carefully down the pages until I came to the number of my room. Opposite this number was a name — John Doane, but where the name of the city should have been there was only a dash.”

“You realize that it is perfectly possible that John Doane is your name?” asked The Thinking Machine.

“Certainly,” was the reply. “But I have no recollection of ever having heard it before. This register showed that I had arrived at the hotel the night before — or rather that John Doane had arrived and been assigned to Room 27, and I was the John Doane, presumably. From that moment to this the hotel people have known me as John Doane, as have other people whom I have met during the four weeks since I awoke.”

“Did the handwriting recall nothing?”

“Nothing whatever.”

“Is it anything like the handwriting you write now?”

“Identical, so far as I can see.”

“Did you have any baggage or checks for baggage?”

“No. All I had was the money and this clothing I stand in. Of course, since then I have bought necessities.”

Both were silent for a long time and finally the stranger — Doane — arose and began pacing nervously again.

“That a tailor-made suit?” asked the scientist.

“Yes,” said Doane, quickly. “I know what you mean. Tailor-made garments have linen strips sewed inside the pockets on which are the names of the manufacturers and the name of the man for whom the clothes were made, together with the date. I looked for those. They had been removed, cut out.”

“Ah!” exclaimed The Thinking Machine suddenly. “No laundry marks on your linen either, I suppose?”

“No. It was all perfectly new.”

“Name of the maker on it?”

“No. That had been cut out, too.”

Doane was pacing back and forth across the reception room; the scientist lay back in his chair.

“Do you know the circumstances of your arrival at the hotel?” he asked at last.

“Yes. I asked, guardedly enough, you may be sure, hinting to the clerk that I had been drunk so as not to make him think I was insane. He said I came in about eleven o’clock at night, without any baggage, paid for my room with a one-hundred-dollar bill, which he changed, registered and went upstairs. I said nothing that he recalls beyond making a request for a room.”

“The name Doane is not familiar to you?”

“No.”

“You can’t recall a wife or children?”

“No.”

“Do you speak any foreign language?”

“No.”

“Is your mind clear now? Do you remember things?”

“I remember perfectly every incident since I awoke in the hotel,” said Doane. “I seem to remember with remarkable clearness, and somehow I attach the gravest importance to the most trivial incidents.”

The Thinking Machine arose and motioned to Doane to sit down. He dropped back into a seat wearily. Then the scientist’s long, slender fingers ran lightly, deftly through the abundant black hair of his visitor. Finally they passed down from the hair and along the firm jaws; thence they went to the arms, where they pressed upon good, substantial muscles. At last the hands, well shaped and white, were examined minutely. A magnifying glass was used to facilitate this examination. Finally The Thinking Machine stared into the quick-moving, nervous eyes of the stranger.

“Any marks at all on your body?” he asked at last.

“No,” Doane responded. “I had thought of that and sought for an hour for some sort of mark. There’s nothing — nothing.” The eyes glittered a little and finally, in a burst of nervousness, he struggled to his feet. “My God!” he exclaimed. “Is there nothing you can do? What is it all, anyway?”

“Seems to be a remarkable form of aphasia,” replied The Thinking Machine. “That’s not an uncommon disease among people whose minds and nerves are overwrought. You’ve simply lost yourself — lost your identity. If it is aphasia, you will recover in time. When, I don’t know.”

“And meantime?”

“Let me see the money you found.”

With trembling hands Doane produced a large roll of bills, principally hundreds, many of them perfectly new. The Thinking Machine examined them minutely, and finally made some memoranda on a slip of paper. The money was then returned to Doane.

“Now, what shall I do?” asked the latter.

“Don’t worry,” advised the scientist. “I’ll do what I can.”

“And — tell me who and what I am?”

“Oh, I can find that out all right,” remarked The Thinking Machine. “But there’s a possibility that you wouldn’t recall even if I told you all about yourself.”
2

When John Doane of Nowhere — to all practical purposes — left the home of The Thinking Machine he bore instructions of divers kinds. First he was to get a large map of the United States and study it closely, reading over and pronouncing aloud the name of every city, town and village he found. After an hour of this he was to take a city directory and read over the names, pronouncing them aloud as he did so. Then he was to make out a list of the various professions and higher commercial pursuits, and pronounce these. All these things were calculated, obviously, to arouse the sleeping brain. After Doane had gone The Thinking Machine called up Hutchinson Hatch, reporter, on the ‘phone.

“Come up immediately,” he requested. “There’s something that will interest you.”

“A mystery?” Hatch inquired, eagerly.

“One of the most engaging problems that has ever come to my attention,” replied the scientist.

It was only a question of a few minutes before Hatch was ushered in. He was a living interrogation point, and repressed a rush of questions with a distinct effort. The Thinking Machine finally told what he knew.

“Now it seems to be,” said The Thinking Machine — and he emphasized the ‘seems’—“it seems to be a case of aphasia. You know, of course, what that is. The man simply doesn’t know himself. I examined him closely. I went over his head for a sign of a possible depression, or abnormality. It didn’t appear. I examined his muscles. He has biceps of great power, is evidently now or has been athletic. His hands are white, well cared for and have no marks on them. They are not the hands of a man who has ever done physical work. The money in his pocket tends to confirm the fact that he is not of that sphere.

“Then what is he? Lawyer? Banker? Financier? What? He might be either, yet he impressed me as being rather of the business than the professional school. He has a good, square-cut jaw — the jaw of a fighting man — and his poise gives one the impression that whatever he has been doing he has been foremost in it. Being foremost in it, he would naturally drift to a city, a big city. He is typically a city man.

“Now, please, to aid me, communicate with your correspondents in the large cities and find if such a name as John Doane appears in any directory. Is he at home now? Has he a family? All about him.”

“Do you believe John Doane is his name?” asked the reporter.

“No reason why it shouldn’t be,” said The Thinking Machine. “Yet it might not be.”

“How about inquiries in this city?”

“He can’t well be a local man,” was the reply. “He has been wandering about the streets for four weeks, and if he had lived here he would have met some one who knew him.”

“But the money?”

“I’ll probably be able to locate him through that,” said The Thinking Machine. “The matter is not at all clear to me now, but it occurs to me that he is a man of consequence, and that it was possibly necessary for some one to get rid of him for a time.”

“Well, if it’s plain aphasia, as you say,” the reporter put in, “it seems rather difficult to imagine that the attack came at a moment when it was necessary to get rid of him.”

“I say it seems like aphasia,” said the scientist, crustily, “There are known drugs which will produce the identical effect if properly administered.”

“Oh,” said Hatch. He was beginning to see.

“There is one drug particularly, made in India, and not unlike hasheesh. In a case of this kind anything is possible. Tomorrow I shall ask you to take Mr. Doane down through the financial district, as an experiment. When you go there I want you particularly to get him to the sound of the ‘ticker.’ It will be an interesting experiment.”

The reporter went away and The Thinking Machine sent a telegram to the Blank National Bank of Butte, Montana:

“To whom did you issue hundred-dollar bills, series B, numbering 846380 to 846395 inclusive? Please answer.”

It was ten o’clock next day when Hatch called on The Thinking Machine. There he was introduced to John Doane, the man who was lost. The Thinking Machine was asking questions of Mr. Doane when Hatch was ushered in.

“Did the map recall nothing?”

“Nothing.”

“Montana, Montana, Montana,” the scientist repeated monotonously; “think of it. Butte, Montana.”

Doane shook his head hopelessly, sadly.

“Cowboy, cowboy. Did you ever see a cowboy?”

Again the head shake.

“Coyote — something like a wolf — coyote. Don’t you recall ever having seen one?”

“I’m afraid it’s hopeless,” remarked the other.

There was a note of more than ordinary irritation in The Thinking Machine’s voice when he turned to Hatch.

“Mr. Hatch, will you walk through the financial district with Mr. Doane?” he asked. “Please go to the places I suggested.”

So it came to pass that the reporter and Doane went out together, walking through the crowded, hurrying, bustling financial district. The first place visited was a private room where market quotations were displayed on a blackboard. Mr. Doane was interested, but the scene seemed to suggest nothing. He looked upon it all as any stranger might have done. After a time they passed out. Suddenly a man came running toward them — evidently a broker.

“What’s the matter?” asked another.

“Montana’s copper’s gone to smash,” was the reply.

“Copper! Copper!” gasped Doane suddenly.

Hatch looked around quickly at his companion. Doane’s face was a study. On it was half realization and a deep perplexed wrinkle, a glimmer even of excitement.

“Copper!” he repeated.

“Does the word mean anything to you?” asked Hatch quickly. “Copper — metal, you know.”

“Copper, copper, copper,” the other repeated. Then, as Hatch looked, the queer expression faded; there came again utter hopelessness.

There are many men with powerful names who operate in the Street — some of them in copper. Hatch led Doane straight to the office of one of these men and there introduced him to a partner in the business.

“We want to talk about copper a little,” Hatch explained, still eyeing his companion.

“Do you want to buy or sell?” asked the broker.

“Sell,” said Doane suddenly. “Sell, sell, sell copper. That’s it — copper.”

He turned to Hatch, stared at him dully a moment, a deathly pallor came over his face, then, with upraised hands, fell senseless.
3

Still unconscious, the man of mystery was removed to the home of The Thinking Machine and there stretched out on a sofa. The Thinking Machine was bending over him, this time in his capacity of physician, making an examination. Hatch stood by, looking on curiously.

“I never saw anything like it,” Hatch remarked. “He just threw up his hands and collapsed. He hasn’t been conscious since.”

“It may be that when he comes to he will have recovered him memory, and in that event he will have absolutely no recollection whatever of you and me,” explained The Thinking Machine.

Doane moved a little at last, and under a stimulant the color began to creep back into his pallid face.

“Just what was said, Mr. Hatch, before he collapsed?” asked the scientist.

Hatch explained, repeating the conversation as he remembered it.

“And he said ‘sell,’” mused The Thinking Machine. “In other words, he thinks — or imagines he knows — that copper is to drop. I believe the first remark he heard was that copper had gone to smash — down, I presume that means?”

“Yes,” the reporter replied.

Half an hour later John Doane sat up on the couch and looked around the room.

“Ah, Professor,” he remarked. “I fainted, didn’t I?”

The Thinking Machine was disappointed because his patient had not recovered memory with consciousness. The remark showed that he was still in the same mental condition — the man who was lost.

“Sell copper, sell, sell, sell,” repeated The Thinking Machine, commandingly.

“Yes, yes, sell,” was the reply.

The reflection of some great mental struggle was on Doane’s face; he was seeking to recall something which persistently eluded him.

“Copper, copper,” the scientist repeated, and he exhibited a penny.

“Yes, copper,” said Doane. “I know. A penny.”

“Why did you say sell copper?”

“I don’t know,” was the weary reply. “It seemed to be an unconscious act entirely. I don’t know.”

He clasped and unclasped his hands nervously and sat for a long time dully staring at the floor. The fight for memory was a dramatic one.

“It seemed to me,” Doane explained after awhile, “that the word copper touched some responsive chord in my memory, then it was lost again. Some time in the past, I think, I must have had something to do with copper.”

“Yes,” said The Thinking Machine, and he rubbed his slender fingers briskly. “Now you are coming around again.”

His remarks were interrupted by the appearance of Martha at the door with a telegram. The Thinking Machine opened it hastily. What he saw perplexed him again.

“Dear me! Most extraordinary!” he exclaimed.

“What is it?” asked Hatch, curiously.

The scientist turned to Doane again.

“Do you happen to remember Preston Bell?” he demanded, emphasizing the name explosively.

“Preston Bell?” the other repeated, and again the mental struggle was apparent on his face. “Preston Bell!”

“Cashier of the Blank National Bank of Butte, Montana?” urged the other, still in an emphatic tone. “Cashier Bell?”

He leaned forward eagerly and watched the face of his patient; Hatch unconsciously did the same. Once there was almost realization, and seeing it The Thinking Machine sought to bring back full memory.

“Bell, cashier, copper,” he repeated, time after time.

The flash of realization which had been on Doane’s face passed, and there came infinite weariness — the weariness of one who is ill.

“I don’t remember,” he said at last. “I’m very tired.”

“Stretch out there on the couch and go to sleep,” advised The Thinking Machine, and he arose to arrange a pillow. “Sleep will do you more good than anything else right now. But before you lie down, let me have, please, a few of those hundred-dollar bills you found.”

Doane extended the roll of money, and then slept like a child. It was uncanny to Hatch, who had been a deeply interested spectator.

The Thinking Machine ran over the bills and finally selected fifteen of them — bills that were new and crisp. They were of an issue by the Blank National Bank of Butte, Montana. The Thinking Machine stared at the money closely, then handed it to Hatch.

“Does that look like counterfeit to you?” he asked.

“Counterfeit?” gasped Hatch. “Counterfeit?” he repeated. He took the bills and examined them. “So far as I can see they seem to be good,” he went on, “though I have never had enough experience with one-hundred-dollar bills to qualify as an expert.”

“Do you know an expert?”

“Yes.”

“See him immediately. Take fifteen bills and ask him to pass on them, each and every one. Tell him you have reason — excellent reason — to believe that they are counterfeit. When he gives his opinion come back to me.”

Hatch went away with the money in his pocket. Then The Thinking Machine wrote another telegram, addressed to Preston Bell, cashier of the Butte Bank. It was as follows:

“Please send me full details of the manner in which money previously described was lost, with names of all persons who might have had any knowledge of the matter. Highly important to your bank and to justice. Will communicate in detail on receipt of your answer.”

Then, while his visitor slept, The Thinking Machine quietly removed his shoes and examined them. He found, almost worn away, the name of the maker. This was subjected to close scrutiny under the magnifying glass, after which The Thinking Machine arose with a perceptible expression of relief on his face.

“Why didn’t I think of that before?” he demanded of himself.

Then other telegrams went into the West. One was to a customs shoemaker in Denver, Colorado:

“To what financier or banker have you sold within three months a pair of shoes, Senate brand, calfskin blucher, number eight, D last? Do you know John Doane?”

A second telegram went to the Chief of Police of Denver. It was:

“Please wire if any financier, banker or business man has been out of your city for five weeks or more, presumably on business trip. Do you know John Doane?”

Then The Thinking Machine sat down to wait. At last the door bell rang and Hatch entered.

“Well?” demanded the scientist, impatiently.

“The expert declares those are not counterfeit,” said Hatch.

Now The Thinking Machine was surprised. It was shown clearly by the quick lifting of the eyebrows, by a sudden snap of his jaws, by a quick forward movement of the yellow head.

“Well, well, well!” he exclaimed at last. Then again: “Well, well!”

“What is it?”

“See here,” and The Thinking Machine took the hundred-dollar bills in his own hands. “These bills, perfectly new and crisp, were issued by the Blank National Bank of Butte, and the fact that they are in proper sequence would indicate that they were issued to one individual at the same time, probably recently. There can be no doubt of that. The numbers run from 846380 to 846395, all series B.”

“I see,” said Hatch.

“Now read that,” and the scientist extended to the reporter the telegram Martha had brought in just before Hatch had gone away. Hatch read this:

“Series B, hundred-dollar bills 846380 to 846395 issued by this bank are not in existence. Were destroyed by fire, together with twenty-seven others of the same series. Government has been asked to grant permission to reissue these numbers.

“PRESTON BELL, Cashier.”

The reporter looked up with a question in his eyes.

“It means,” said The Thinking Machine, “that this man is either a thief or the victim of some sort of financial jugglery.”

“In that case is he what he pretends to be-a man who doesn’t know himself?” asked the reporter.

“Than remains to be seen.”
4

Event followed event with startling rapidity during the next few hours. First came a message from the Chief of Police of Denver. No capitalist or financier of consequence was out of Denver at the moment, so far as his men could ascertain. Longer search might be fruitful. He did not know John Doane. One John Doane in the directory was a teamster.

Then from the Blank National Bank came another telegram signed “Preston Bell, Cashier,” reciting the circumstances of the disappearance of the hundred-dollar bills. The Blank National Bank had moved into a new structure; within a week there had been a fire which destroyed it. Several packages of money, including one package of hundred-dollar bills, among them those specified by The Thinking Machine, had been burned. President Harrison of the bank immediately made affidavit to the Government that these bills were left in his office.

The Thinking Machine studied this telegram carefully and from time to time glanced at it while Hatch made his report. This was as to the work of the correspondents who had been seeking John Doane. They found many men of the name and reported at length on each. One by one The Thinking Machine heard the reports, then shook his head.

Finally he reverted again to the telegram, and after consideration sent another — this time to the Chief of Police of Butte. In it he asked these questions:

“Has there ever been any financial trouble in Blank National Bank? Was there an embezzlement or shortage at any time? What is reputation of President Harrison? What is reputation of Cashier Bell? Do you know John Doane?”

In due course of events the answer came. It was brief and to the point. It said:

“Harrison recently embezzled $175,000 and disappeared. Bell’s reputation excellent; now out of city. Don’t know John Doane. If you have any trace of Harrison, wire quick.”

This answer came just after Doane awoke, apparently greatly refreshed, but himself gain — that is, himself in so far as he was still lost. For an hour The Thinking Machine pounded him with questions — questions of all sorts, serious, religious and at times seemingly silly. They apparently aroused no trace of memory, save when the name Preston Bell was mentioned; then there was the strange, puzzled expression on Doane’s face.

“Harrison — do you know him?” asked the scientist. “President of the Blank National Bank of Butte?”

There was only an uncomprehending stare for an answer. After a long time of this The Thinking Machine instructed Hatch and Doane to go for a walk. He had still a faint hope that some one might recognize Doane and speak to him. As they wandered aimlessly on two persons spoke to him. One was a man who nodded and passed on.

“Who was that?” asked Hatch quickly. “Do you remember ever having seen him before?”

“Oh, yes,” was the reply. “He stops at my hotel. He knows me as Doane.”

It was just a few minutes before six o’clock when, walking slowly, they passed a great office building. Coming toward them was a well-dressed, active man of thirtyfive years or so. As he approached he removed a cigar from his lips.

“Hello, Harry!” he exclaimed, and reached for Doane’s hand.

“Hello,” said Doane, but there was no trace of recognition in his voice.

“How’s Pittsburg?” asked the stranger.

“Oh, all right, I guess,” said Doane, and there came new wrinkles of perplexity in his brow. “Allow me, Mr. — Mr. — really I have forgotten your name —”

“Manning,” laughed the other.

“Mr. Hatch, Mr. Manning.”

The reporter shook hands with Manning eagerly; he saw now a new line of possibilities suddenly revealed. Here was a man who knew Doane as Harry — and then Pittsburg, too.

“Last time I saw you was in Pittsburg, wasn’t it?” Manning rattled on, as he led the way into a nearby cafe. “By George, that was a stiff game that night! Remember that jack full I held? It cost me nineteen hundred dollars,” he added, ruefully.

“Yes, I remember,” said Doane, but Hatch knew that he did not. And meanwhile a thousand questions were surging through the reporter’s brain.

“Poker hands as expensive as that are liable to be long remembered,” remarked Hatch, casually. “How long ago was that?”

“Three years, wasn’t it, Harry?” asked Manning.

“All of that, I should say,” was the reply.

“Twenty hours at the table,” said Manning, and again he laughed cheerfully. “I was woozy when we finished.”

Inside the cafe they sought out a table in a corner. No one else was near. When the waiter had gone, Hatch leaned over and looked Doane straight in the eyes.

“Shall I asked some questions?” he inquired.

“Yes, yes,” said the other eagerly.

“What — what is it?” asked Manning.

“It’s a remarkably strange chain of circumstances,” said Hatch, in explanation. “This man whom you call Harry, we know as John Doane. What is his real name? Harry what?”

Manning stared at the reporter for a moment in amazement, then gradually a smile came to his lips.

“What are you trying to do?” he asked. “Is this a joke?”

“No, my God, man, can’t you see?” exclaimed Doane, fiercely. “I’m ill, sick, something. I’ve lost my memory, all of my past. I don’t remember any............