Dr. Thorndyke Omnibus Vol 4
Page 71
"Ah!" exclaimed the inspector, " I was afraid it wasn't."
"And it is not the blood of Robert Fletcher."
"Isn't it now! Well, I am glad to hear that."
"Moreover," continued Thorndyke, "it was shed well after nine o'clock at night, probably not earlier than midnight."
"There, now!" the inspector exclaimed, with an admiring glance at Thorndyke, "just think of that. See what it is to be a man of science! I suppose, sir, you couldn't give us any sort of description of the person who dropped that blood in the hall?"
Staggered as I had been by Thorndyke's astonishing statements, I could not repress a grin at the inspector's artless question. But the grin faded rather abruptly as Thorndyke replied in matter-of-fact tones: "A detailed description is, of course, impossible. I can only sketch out the probabilities. But if you should happen to meet with a negro—a tall negro with a bandaged head or a contused wound of the scalp and a swollen leg—you had better keep your eye on him. The leg which is swollen is probably the left."
The inspector was thrilled; and so was I, for that matter. The thing was incredible; but yet I knew that Thorndyke's amazing deductions were the products of perfectly orthodox scientific methods. Only I could form no sort of guess as to how they had been arrived at. A negro's blood is no different from any other person's, and certainly affords no clue to his height or the condition of his legs. I could make nothing of it: and as the dialogue and the inspector's note-takings brought us to the little town hall in which the inquest was to be held, I dismissed the puzzle until such time as Thorndyke chose to solve it.
When we entered the town hall we found everything in readiness for the opening of the proceedings. The jury were already in their places and the coroner was just about to take his seat at the head of the long table. We accordingly slipped on to the two chairs that were found for us by the inspector, and the latter took his place behind the jury and facing us. Near to him Mr. Foxley and Miss Markham were seated, and evidently hailed our arrival with profound relief, each of them smiling us a silent greeting. A professional-looking man sitting next to Thorndyke I assumed to be the medical witness, and a rather good young man who sat apart with a police constable I identified as Robert Fletcher.
The evidence of the "common" witnesses, who deposed to the general facts, told us nothing that we did not already know, excepting that it was made clear that Fletcher had left his uncle's house not later than seven o'clock and that thereafter until the following morning his whereabouts were known. The medical witness was cautious, and kept an uneasy eye on Thorndyke. The wound which caused the death of deceased might have been inflicted by himself or by some other person. He had originally given the probable time of death as six or seven o'clock on Wednesday evening. He now admitted reply to a question from Thorndyke that he had not taken the temperature of the body, and that the rigidity and other conditions were not absolutely inconsistent with a considerable later time of death. Death might even have occurred after midnight.
In spite of this admission, however, the sum of the evidence tended strongly to implicate Fletcher, and one or two questions from jurymen suggested a growing belief in his guilt. I had no doubt whatever that if the case had been put to the jury at this stage, a unanimous verdict of "wilful murder" would have been the result. But, as the medical witness returned to his seat, the coroner fixed an inquisitive eye on Thorndyke.
"You have not been summoned as a witness, Dr. Thorndyke," said he, "but I understand that you have made certain investigations in this case. Are you able to throw any fresh light on the circumstances of the death of the deceased, Joseph Riggs?
"Yes," Thorndyke replied. "I am in a position to give important and material evidence."
Thereupon he was sworn, and the coroner, still watching him curiously, said: "I am informed that you have examined samples of the blood of deceased and the blood which was found in the hall of deceased's house. Did you examine them, and if so, what was the object of the examination?"
"I examined both samples and also samples of the blood of Robert Fletcher. The object was to ascertain whether the blood on the hall floor was the blood of the deceased or of Robert Fletcher."
The coroner glanced at the medical witness, and a faint smile appeared on the face of each.
"And did you," the former asked in a slightly ironical tone, "form any opinion on the subject?"
"I ascertained definitely that the blood in the hall was neither that of the deceased nor that of Robert Fletcher."
The coroner's eyebrows went up, and once more he glanced significantly at the doctor.
"But," he demanded incredulously, "is it possible to distinguish the blood of one person from that of another?"
"Usually it is not, but in certain exceptional cases it is. This happened to be an exceptional case."
"In what respect?"
"It happened," Thorndyke replied, "that the person whose blood was found in the hall suffered from the parasitic disease known as filariasis. His blood was infested with swarms of a minute worm named Filaria nocturna. I have here," he continued, taking out of his research-case the two bottles and the three boxes, "thirty-six mounted specimens of this blood, and in every one of them one or more of the parasites is to be seen. I have also thirty-six mounted specimens each of the blood of the deceased and. the blood of Robert Fletcher. In not one of these specimens is a single parasite to be found. Moreover, I have examined Robert Fletcher and the body of the deceased, and can testify that no sign of filarial disease was to be discovered in either. Hence it is certain, that the blood found in the halt was not the blood of either of these two persons."
The ironic smile had faded from the coroner's face. He was evidently deeply impressed, and his manner was quite deferential as he asked: "Do these very remarkable observations of yours lead to any further inferences?"
"Yes," replied Thorndyke. "They render it certain that this blood was shed no earlier than nine o'clock and probably nearer midnight."
"Really!" the astonished coroner exclaimed. "Now, how is it possible to fix the time in that exact manner?"
"By inference from the habits of the parasite," Thorndyke explained. "This particular filaria is distributed by the mosquito, and its habits are adapted to the habits of the mosquito. During the day, the worms are not found in the blood; they remain hidden in the tissues of the body. But about nine o'clock at night they begin to migrate from the tissues into the blood, and remain in the blood during the hours when the mosquitoes are active. Then about six o'clock in the morning, they leave the blood and migrate back into the tissues.
"There is another very similar species—Filaria diurna—which has exactly opposite habits, adapted to day-flying suctorial insects. It appears in the blood about eleven in the forenoon and goes back into the tissues at about six o'clock in the evening."
"Astonishing!" exclaimed the coroner. "Wonderful! By the way, the parasites that you found could not, I suppose, have been Filaria diurna?"
"No," Thorndyke replied. "The time excludes that possibility. The blood was certainly shed after six. They were undoubtedly nocturna, and the large numbers found suggest a late hour. The parasites come out of the tissues very gradually, and it is only about midnight that they appear in the blood in really large numbers."
"That is very important," said the coroner. "But does this disease affect any particular class of persons?"
"Yes," Thorndyke replied. "As the disease is confined to tropical countries, the sufferers are naturally residents of the tropics, and nearly always natives. In West Africa, for instance, it is common among the negroes but practically unknown among the white residents."
"Should you say that there is a distinct probability that this unknown person was a negro?"
"Yes. But apart from the filaria there is direct evidence that he was. Searching for some cause of the bleeding, I noticed a lamp-hook screwed into the ceiling, and low enough to strike a tall man's head. I examined it closely, and observed on it a dark, shin
y mark, like a blood-smear, and one or two short coiled hairs which I recognised as the scalp-hairs of a negro. I have no doubt that the unknown man is a negro, and that he has a wound of the scalp."
"Does filarial disease produce any effects that can be recognised?
"Frequently it does. One of the commonest effects produced by Filaria nocturna, especially among negroes, is the condition known as elephantiasis. This consists of an enormous swelling of the extremities, most usually of one leg, including the foot; whence the name. The leg and foot look like those of an elephant. As a matter of fact, the negro who was in the hall suffered from elephantiasis of the left leg. I observed prints of the characteristically deformed foot on the oil-cloth covering the floor."
Thorndyke's evidence was listened to with intense interest by everyone present, including myself. Indeed, so spell-bound was his audience that one could have heard a pin drop; and the breathless silence continued for some seconds after he had ceased speaking. Then, in the midst of the stillness, I heard the door creak softly behind me.
There was nothing particularly significant in the sound. But its effects were amazing. Glancing at the inspector, who faced the door, I saw his eyes open and his jaw drop until his face was a very mask of astonishment. And as this expression was reflected on the faces of the jurymen, the coroner and everyone present, excepting Thorndyke, whose back was towards the door, I turned to see what had happened. And then I was as astonished as the others.
The door had been pushed open a few inches and a head thrust in—a negro's head, covered with a soiled and blood rag forming a rough bandage. As I gazed at the black, shiny, inquisitive face, the man pushed the door farther open and shuffled into the room; and instantly there arose on all sides a soft rustle and an inarticulate murmur followed by breathless silence, while every eye was riveted on the man's left leg.
It certainly was a strange, repulsive—looking member, its monstrous bulk exposed to view through the slit trouser and its great shapeless foot—shoeless, since no shoe could have contained it—rough and horny like the foot of an elephant. But it was tragic and pitiable, too for the man, apart from this horrible excrescence, was a fine, big, athletic-looking fellow.
The coroner was the first to recover. Addressing Thorndyke, but keeping an eye on the negro, he said: "Your evidence, then, amounts to this: On the night of Joseph Riggs' death, there was a stranger in the house. That stranger was a negro, who seems to have wounded his head and who, you say, had a swelled left leg."
"Yes," Thorndyke admitted, "that is the substance of my evidence."
Once more a hush fell on the room. The negro stood near the door, rolling his eyes to and fro over the assembly as if uneasily conscious that everyone was looking at him. Suddenly, he shuffled up to the foot of the table and addressed the coroner in deep, buzzing, resonant tones. "You tink I kill dat ole man! I no kill um. He kill himself. I look um."
Having made this statement, he rolled his eyes defiantly round the court, and then turned his face expectantly towards the coroner, who said: "You say you know that Mr. Riggs killed himself?"
"Yas. I look um. He shoot himself. You tink I shoot urn. I tell you I no shoot um. Why I fit kill this man? I no sabby um."
"Then," said the coroner, "if you know that he killed himself, you must tell us all that you know; and you must swear to tell us the truth."
"Yas," the negro agreed, "I tell you eberyting one time. I tell you de troof. Dat ole man kill himself."
When the coroner had explained to him that he was not bound to make any statement that would incriminate him, as he still elected to give evidence, he was sworn and proceeded to make his statement with curious fluency and self-possession.
"My name Robert Bruce. Dat my English name. My country name Kwaku Mensah. I live for Winnebah on de Gold Coast. Dis time I cook's mate for dat steamer Leckie. On Wednesday night I lay in my bunk. I no fit sleep. My leg he chook me. I look out of de porthole. Plenty moon live. In my country when de moon big, peoples walk about. So I get up. I go ashore to walk about de town. Den de rain come. Plenty rain. Rain no good for my sickness. So I try for open house doors. No fit. All doors locked. Den I come to dis ole man's house. I turn de handle. De door open. I go in. I look in one room. All dark. Nobody live. Den I look annudder room. De door open a little. Light live inside. I no like dat I tink, spose somebody come out and see me, be link I come for teef someting. So I tink I go away.
"Den someting make 'Ping!' same like gun. I hear someting faIl down in dat room. I go to de door and I sing out, 'Who live in dere?' Nobody say nutting. So I open de door and look in. De room full ob smoke. I look dat ale man on de floor. I look dat pistol. I sabby dat ole man kill himself. Den I frighten too much. I run out. D place all dark. Someting knock my head. He make blood come plenty. I go back for ship. I no say nutting to nobody. Dis day I hear peoples talk 'bout dis inquess to find out who kill dat ole man. So I come to hear what peoples say. I hear dat gentleman say I kill dat ole man. So I tell you eberyting. I tell you de troof. Finish."
"Do you know what time it was when you came ashore?" the coroner asked.
"Yas. When I come down de ladder I hear eight bells ring. I get back to de ship jus' before dey ring two bells in de middle watch."
"Then you came ashore at midnight and got back just before one o'clock?"
"Yas. Dat is what I say."
A few more questions put by the coroner having elicited nothing fresh, the case was put briefly to the jury.
"You have heard the evidence, gentlemen, and most remarkable evidence it was. Like myself, you must have been deeply impressed by the amazing skill with which Dr. Thorndyke reconstructed the personality of the unknown visitor to that house, and even indicated correctly the very time of the visit, from an examination of a mere chance blood-stain. As to the statement of Kwaku Mensab, I can only say that I see no reason to doubt its truth. You will note that it is in complete agreement with Dr. Thorndyke's evidence, and it presents no inconsistencies or improbabilities. Possibly the police may wish to make some further inquiries, but for our purposes it is the evidence of an eyewitness, and as such must be given full weight. With these remarks, I leave you to consider your verdict."
The jury took but a minute or two to deliberate. Indeed, only one verdict was possible if the evidence was to be accepted, and that was agreed on unanimously—suicide whilst temporarily insane. As soon as it was announced, the inspector, formally and with congratulations, released Fletcher from custody, and presently retired in company with the negro to make a few inquiries on board the ship.
The rising of the court was the signal for a wild demonstration of enthusiasm and gratitude to Thorndyke. To play his part efficiently in that scene he would have needed to be furnished, like certain repulsive Indian deities, with an unlimited outfit of arms. For everyone wanted to shake his hand, and two of them—Mr. Foxley and Miss Markham—did so with such pertinacity as entirely to exclude the other candidates.
"I can never thank you enough," Miss Markham exclaimed, with swimming eyes, "if I should live to be a hundred. But I shall think of you with gratitude every day of my life. Whenever I look at Robert, I shall remember that his liberty, and even his life, are your gifts." Here she was so overcome by grateful emotion that she again seized and pressed his hand. I think she was within an ace of kissing him; but being, perhaps, doubtful how he would take it, compromised by kissing Robert instead. And, no doubt, it was just as well.
Gleanings From the Wreckage
There was a time, and not so very long ago, when even the main streets of London, after midnight, were as silent as—not the grave; that is an unpleasant simile. Besides, who has any experience of conditions in the grave? But they were nearly as silent as the streets of a village. Then the nocturnal pedestrian could go his way encompassed and soothed by quiet, which was hardly disturbed by the rumble of a country wagon wending to market or the musical tinkle of the little bells on the collar of the hansom-cab horse sedately drawing some late rev
eller homeward.
Very different is the state of those streets nowadays. Long after the hour when the electric trams have ceased from troubling and the motor omnibuses are at rest, the heavy road transport from the country thunders through the streets; the air is rent by the howls of the electric hooter, and belated motor-cyclists fly past, stuttering explosively like perambulant Lewis guns with an in exhaustible charge.
"Let us get into the by-streets," said Thorndyke, as a car sped past us uttering sounds suggestive of a dyspeptic dinosaur. "We don't want our conversation seasoned with mechanical objurgations. In the back-streets it is still possible to hear oneself speak and forget the march of progress."
We turned into a narrow by-way with the confidence of the born and bred Londoner in the impossibility of losing our direction, and began to thread the intricate web of streets in the neighbourhood of a canal.
"It is a remarkable thing," Thorndyke resumed anon, "that every new application of science seems to be designed to render the environment of civilised man more and more disagreeable. If the process goes much farther, as it undoubtedly will, we shall presently find ourselves looking back wistfully at the Stone-age as the golden age of human comfort."
At this point his moralising was cut short by a loud, sharp explosion. We both stopped and looked about from the parapet of the bridge that we were crossing.
"Quite like old times," Thorndyke remarked. "Carries one back to 1915, when friend Fritz used to call on us. Ah! There is the place; the top story of that tail building across the canal." He pointed as he spoke to a factory-like structure, from the upper windows of which a lurid light shone and rapidly grew brighter.
"It must be down the next turning," said I, quickening my pace.