Obviously the first fact to be settled was whether Mr. Holmes had died from purely natural causes. I accordingly busied myself the next few days with the question, and was fortunate enough to so interest the proper authorities that an order was issued for the exhumation and examination of the body.

The result was disappointing. No traces of poison were to be found in the stomach nor was there to be seen on the body any mark of violence with the exception of a minute prick upon one of his thumbs.

This speck was so small that it escaped every eye but my own.

The authorities assuring the widow that the doctor’s certificate given her in Philadelphia was correct, the body was again interred. But I was not satisfied; and confident that this death had not been a natural one, I entered upon one of those secret and prolonged investigations which for so many years have constituted the pleasure of my life. First, I visited the Colonnade in Philadelphia, and being allowed to see the room in which Mr. Holmes died, went through it carefully. As it had not been used since that time I had some hopes of coming upon a clue.

But it was a vain hope, and the only result of my journey to this place was the assurance I received that the gentleman had spent the entire evening preceding his death in his own room, where he had been brought several letters and one small package, the latter coming by mail. With this one point gained — if it was a point — I went back to New York.

Calling on Mrs. Holmes, I asked her if, while her husband was away, she had sent him anything besides letters, and upon her replying to the contrary, requested to know if in her visit to Philadelphia she had noted among her husband’s effects anything that was new or unfamiliar to her. “For he received a package while there,” I explained, “and though its contents may have been perfectly harmless, it is just as well for us to be assured of this before going any further.”

“Oh, you think, then, he was really the victim of some secret violence.”

“We have no proof of it,” I said. “On the contrary, we are assured that he died from natural causes. But the incident of the newspaper slip outweighs, in my mind, the doctor’s conclusions, and until the mystery surrounding that obituary notice has been satisfactorily explained by its author I shall hold to the theory that your husband has been made away with in some strange and seemingly unaccountable manner, which it is our duty to bring to light.”

“You are right! You are right! Oh, John Graham!”

She was so carried away by this plain expression of my belief that she forgot the question I had put to her.

“You have not said whether or not you found anything among your husband’s effects that can explain this mystery,” I suggested.

She at once became attentive.

“Nothing,” said she; “his trunks were already packed and his bag nearly so. There were a few things lying about the room which I saw thrust into the latter. Would you like to look through them? I have not had the heart to open the bag since I came back.”

As this was exactly what I wished, I said as much, and she led me into a small room, against the wall of which stood a trunk with a travelling-bag on top of it. Opening the latter, she spread the contents out on the trunk.

“I know all these things,” she sadly murmured, the tears welling in her eyes.

“This?” I inquired, lifting up a bit of coiled wire with two or three rings dangling from it.

“No; why, what is that?”

“It looks like a puzzle of some kind.”

“Then it is of no consequence. My husband was forever amusing himself over some such contrivance. All his friends knew how well he liked these toys and frequently sent them to him. This one evidently reached him from Philadelphia.”

Meanwhile I was eyeing the bit of wire curiously. It was undoubtedly a puzzle, but it had appendages to it that I did not understand.

“It is more than ordinarily complicated,” I observed, moving the rings up and down in a vain endeavour to work them off.

“The better he would like it,” she said.

I kept working with the rings. Suddenly I gave a painful start. A little prong in the handle of the toy had started out and pierced me.

“You had better not handle it,” said I, and laid it down. But the next moment I took it up again and put it in my pocket. The prick made by this treacherous bit of mechanism was in or near the same place on my thumb as the one I had noticed on the hand of the deceased Mr. Holmes.

There was a fire in the room, and before proceeding further I cauterised that prick with the end of a red-hot poker. Then I made my adieux to Mrs. Holmes and went immediately to a chemist friend of mine.

“Test the end of this bit of steel for me,” said I. “I have reason to believe it carries with it a deadly poison.”

He took the toy, promising to subject it to every test possible and let me know the result. Then I went home. I felt ill, or imagined I did, which under the circumstances was almost as bad.

Next day, however, I was quite well, with the exception of a certain inconvenience in my thumb. But not till the following week did I receive the chemist’s report. It overthrew my whole theory. He found nothing, and returned me the bit of steel.

But I was not convinced.

“I will hunt up this John Graham,” thought I, “and study him.”

But this was not so easy a task as it may appear. As Mrs. Holmes possessed no clue to the whereabouts of her quondam lover, I had nothing to aid me in my search for him, save her rather vague description of his personal appearance and the fact that he was constantly interrupted in speaking by a low, choking cough. However, my natural perseverance carried me through. After seeing and interviewing a dozen John Grahams without result, I at last lit upon a man of that name who presented a figure of such vivid unrest and showed such a desperate hatred of his fellows, that I began to entertain hopes of his being the person I was in search of. But determined to be sure of this before proceeding further, I confided my suspicions to Mrs. Holmes, and induced her to accompany me down to a certain spot on the “Elevated” from which I had more than once seen this man go by to his usual lounging place in Printing House Square.

She showed great courage in doing this, for she had such a dread of him that she was in a state of nervous excitement from the moment she left her house, feeling sure that she would attract his attention and thus risk a disagreeable encounter. But she might have spared herself these fears. He did not even glance up in passing us, and it was mainly by his walk she recognised him. But she did recognise him; and this nerved me at once to set about the formidable task of fixing upon him a crime which was not even admitted as a fact by the authorities.

He was a man-about-town, living, to all appearances, by his wits. He was to be seen mostly in the downtown portions of the city, standing for hours in front of some newspaper office, gnawing at his finger-ends, and staring at the passers-by with a hungry look alarming to the timid and provoking alms from the benevolent. Needless to say that he rejected the latter expression of sympathy with angry contempt.

His face was long and pallid, his cheek-bones high, and his mouth bitter and resolute in expression. He wore neither beard nor moustache, but made up for their lack by an abundance of light-brown hair, which hung very nearly to his shoulders. He stooped in standing, but as soon as he moved, showed decision and a certain sort of pride which caused him to hold his head high and his body more than usually erect. With all these good points his appearance was decidedly sinister, and I did not wonder that Mrs. Holmes feared him.

My next move was to accost him. Pausing before the doorway in which he stood, I addressed him some trivial question. He answered me with sufficient politeness, but with a grudging attention which betrayed the hold which his own thoughts had upon him. He coughed while speaking, and his eye, which for a moment rested on mine, produced an impression upon me for which I was hardly prepared, great as was my prejudice against him. There was such an icy composure in it; the composure of an envenomed nature conscious of its superiority to all surprises. As I lingered to study him more closely, the many dangerous qualities of the man became more and more apparent to me; and convinced that to proceed further without deep and careful thought would be to court failure where triumph would set me up for life, I gave up all present attempt at enlisting him in conversation and went away in an inquiring and serious mood.

In fact, my position was a peculiar one, and the problem I had set for myself one of unusual difficulty. Only by means of some extraordinary device such as is seldom resorted to by the police of this or any other nation, could I hope to arrive at the secret of this man’s conduct, and triumph in a matter which to all appearance was beyond human penetration.

But what device? I knew of none, nor through two days and nights of strenuous thought did I receive the least light on the subject. Indeed, my mind seemed to grow more and more confused the more I urged it into action. I failed to get inspiration indoors or out; and feeling my health suffer from the constant irritation of my recurring disappointment, I resolved to take a day off and carry myself and my perplexities into the country.

I did so. Governed by an impulse which I did not then understand, I went to a small town in New Jersey and entered the first house on which I saw the sign “Room to Let.” The result was most fortunate. No sooner had I crossed the threshold of the neat and homely apartment thrown open to my use, than it recalled a room in which I had slept two years before and in which I had read a little book I was only too glad to remember at this moment. Indeed, it seemed as if a veritable inspiration had come to me through this recollection, for though the tale to which I allude was a simple child’s story written for moral purposes, it contained an idea which promised to be invaluable to me at this juncture. Indeed, by means of it, I believed myself to have solved the problem that was puzzling me, and, relieved beyond expression, I paid for the night’s lodging I had now determined to forego, and returned immediately to New York, having spent just fifteen minutes in the town where I had received this happy inspiration.

My first step on entering the city was to order a dozen steel coils made similar to the one which I still believed answerable for James Holmes’s death. My next to learn as far as possible all of John Graham’s haunts and habits. At a week’s end I had the springs and knew almost as well as he did himself where he was likely to be found at all times of the day and night. I immediately acted upon this knowledge. Assuming a slight disguise, I repeated my former stroll through Printing House Square, looking into each doorway as I passed. John Graham was in one of them, staring in his old way at the passing crowd, but evidently seeing nothing but the images formed by his own disordered brain. A manuscript roll stuck out of his breast-pocket, and from the way his nervous fingers fumbled with it, I began to understand the restless glitter of his eyes, which were as full of wretchedness as any eyes I have ever seen.

Entering the doorway where he stood, I dropped at his feet one of the small steel coils with which I was provided. He did not see it. Stopping near him, I directed his attention to it by saying:

“Pardon me, but did I not see something drop out of your hand?”

He started, glanced at the seemingly inoffensive toy I had pointed out, and altered so suddenly and so vividly that it became instantly apparent that the surprise I had planned for him was fully as keen and searching a one as I had anticipated. Recoiling sharply, he gave me a quick look, then glanced down again at his feet as if half expecting to find the object of his terror gone. ............