The Collected Works of R. Austin Freeman (Illustrated Edition). R. Austin Freeman

Still, the matter is worth noting."

      He handed me the lens and I scrutinised every part of each hand without being able to detect the faintest trace of any recent wound.

      "There is one other matter that must be attended to before you go," said Thorndyke, pressing the electric bell-push by his chair. "I will take one or two prints of the left thumb for my own information."

      In response to the summons, Polton made his appearance from some lair unknown to me, but presumably the laboratory, and, having received his instructions, retired, and presently returned carrying a box, which he laid on the table. From this receptacle Thorndyke drew forth a bright copper plate mounted on a slab of hard wood, a small printer's roller, a tube of finger-print ink, and a number of cards with very white and rather glazed surfaces.

      "Now, Mr. Hornby," said he, "your hands, I see, are beyond criticism as to cleanliness, but we will, nevertheless, give the thumb a final polish."

      Accordingly he proceeded to brush the bulb of the thumb with a well-soaked badger-hair nail-brush, and, having rinsed it in water, dried it with a silk handkerchief, and gave it a final rub on a piece of chamois leather. The thumb having been thus prepared, he squeezed out a drop of the thick ink on to the copper plate and spread it out with the roller, testing the condition of the film from time to time by touching the plate with the tip of his finger and taking an impression on one of the cards.

      When the ink had been rolled out to the requisite thinness, he took Reuben's hand and pressed the thumb lightly but firmly on to the inked plate; then, transferring the thumb to one of the cards, which he directed me to hold steady on the table, he repeated the pressure, when there was left on the card a beautifully sharp and clear impression of the bulb of the thumb, the tiny papillary ridges being shown with microscopic distinctness, and even the mouths of the sweat glands, which appeared as rows of little white dots on the black lines of the ridges. This manoeuvre was repeated a dozen times on two of the cards, each of which thus received six impressions. Thorndyke then took one or two rolled prints, i.e. prints produced by rolling the thumb first on the inked slab and then on the card, by which means a much larger portion of the surface of the thumb was displayed in a single print.

      "And now," said Thorndyke, "that we may be furnished with all the necessary means of comparison, we will take an impression in blood."

      The thumb was accordingly cleansed and dried afresh, when Thorndyke, having pricked his own thumb with a needle, squeezed out a good-sized drop of blood on to a card.

      "There," said he, with a smile, as he spread the drop out with the needle into a little shallow pool, "it is not every lawyer who is willing to shed his blood in the interests of his client."

      He proceeded to make a dozen prints as before on two cards, writing a number with his pencil opposite each print as he made it.

      "We are now," said he, as he finally cleansed his client's thumb, "furnished with the material for a preliminary investigation, and if you will now give me your address, Mr. Hornby, we may consider our business concluded for the present. I must apologise to you, Mr. Lawley, for having detained you so long with these experiments."

      The lawyer had, in fact, been viewing the proceedings with hardly concealed impatience, and he now rose with evident relief that they were at an end.

      "I have been highly interested," he said mendaciously, "though I confess I do not quite fathom your intentions. And, by the way, I should like to have a few words with you on another matter, if Mr. Reuben would not mind waiting for me in the square just a few minutes."

      "Not at all," said Reuben, who was, I perceived, in no way deceived by the lawyer's pretence. "Don't hurry on my account; my time is my own—at present." He held out his hand to Thorndyke, who grasped it cordially.

      "Good-bye, Mr. Hornby," said the latter. "Do not be unreasonably sanguine, but at the same time, do not lose heart. Keep your wits about you and let me know at once if anything occurs to you that may have a bearing on the case."

      The young man then took his leave, and, as the door closed after him, Mr. Lawley turned towards Thorndyke.

      "I thought I had better have a word with you alone," he said, "just to hear what line you propose to take up, for I confess that your attitude has puzzled me completely."

      "What line would you propose?" asked Thorndyke.

      "Well," said the lawyer, with a shrug of his shoulders, "the position seems to be this: our young friend has stolen a parcel of diamonds and has been found out; at least, that is how the matter presents itself to me."

      "That is not how it presents itself to me," said Thorndyke drily. "He may have taken the diamonds or he may not. I have no means of judging until I have sifted the evidence and acquired a few more facts. This I hope to do in the course of the next day or two, and I suggest that we postpone the consideration of our plan of campaign until I have seen what line of defence it is possible to adopt."

      "As you will," replied the lawyer, taking up his hat, "but I am afraid you are encouraging the young rogue to entertain hopes that will only make his fall the harder—to say nothing of our own position. We don't want to make ourselves ridiculous in court, you know."

      "I don't, certainly," agreed Thorndyke. "However, I will look into the matter and communicate with you in the course of a day or two."

      He stood holding the door open as the lawyer descended the stairs, and when the footsteps at length died away, he closed it sharply and turned to me with an air of annoyance.

      "The 'young rogue,'" he remarked, "does not appear to me to have been very happy in his choice of a solicitor. By the way, Jervis, I understand you are out of employment just now?"

      "That is so," I answered.

      "Would you care to help me—as a matter of business, of course—to work up this case? I have a lot of other work on hand and your assistance would be of great value to me."

      I said, with great truth, that I should be delighted.

      "Then," said Thorndyke, "come round to breakfast to-morrow and we will settle the terms, and you can commence your duties at once. And now let us light our pipes and finish our yarns as though agitated clients and thick-headed solicitors had no existence."

A Lady in the Case

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      When I arrived at Thorndyke's chambers on the following morning, I found my friend already hard at work. Breakfast was laid at one end of the table, while at the other stood a microscope of the pattern used for examining plate-cultures of micro-organisms, on the wide stage of which was one of the cards bearing six thumb-prints in blood. A condenser threw a bright spot of light on the card, which Thorndyke had been examining when I knocked, as I gathered from the position of the chair, which he now pushed back against the wall.

      "I see you have commenced work on our problem," I remarked as, in response to a double ring of the electric bell, Polton entered with the materials for our repast.

      "Yes," answered Thorndyke. "I have opened the campaign, supported, as usual, by my trusty chief-of-staff; eh! Polton?"

      The little man, whose intellectual, refined countenance and dignified bearing seemed oddly out of character with the tea-tray that he carried, smiled proudly, and, with a glance of affectionate admiration at my friend, replied—

      "Yes, sir. We haven't been letting the grass grow under our feet. There's a beautiful negative washing upstairs and a bromide enlargement too, which will be mounted and dried by the time you have finished your breakfast."

      "A wonderful man that, Jervis," my friend observed as his assistant retired. "Looks like a rural dean or a chancery judge, and was obviously intended by Nature to be a professor of physics. As an actual fact he was first a watchmaker, then a maker of optical instruments, and now he is mechanical factotum to a medical jurist. He is my right-hand,