THE MECHANISM OF DETECTION

(Related by Christopher Jervis, M.D.)

The singular circumstances that attended the death of Mr. Oscar Brodski, the well-known diamond merchant of Hatton Garden, illustrated very forcibly the importance of one or two points in medico-legal practice which Thorndyke was accustomed to insist were not sufficiently appreciated. What those points were, I shall leave my friend and teacher to state at the proper place; and meanwhile, as the case is in the highest degree instructive, I shall record the incidents in the order of their occurrence.

The dusk of an October evening was closing in as Thorndyke and I, the sole occupants of a smoking compartment, found ourselves approaching the little station of Ludham; and, as the train slowed down, we peered out at the knot of country people who were waiting on the platform. Suddenly Thorndyke exclaimed in a tone of surprise: “Why, that is surely Boscovitch!” and almost at the same moment a brisk, excitable little man darted at the door of our compartment and literally tumbled in.

“I hope I don’t intrude on this learned conclave,” he said, shaking hands genially and banging his Gladstone with impulsive violence into the rack; “but I saw your faces at the window, and naturally jumped at the chance of such pleasant companionship.”

“You are very flattering,” said Thorndyke; “so flattering that you leave us nothing to say. But what in the name of fortune are you doing at—what’s the name of the place—Ludham?”

“My brother has a little place a mile or so from here, and I have been spending a couple of days with him,” Mr. Boscovitch explained. “I shall change at Badsham Junction and catch the boat train for Amsterdam. But whither are you two bound? I see you have your mysterious little green box up on the hat-rack, so I infer that you are on some romantic quest, eh? Going to unravel some dark and intricate crime?”

“No,” replied Thorndyke. “We are bound for Warmington on a quite prosaic errand. I am instructed to watch the proceedings at an inquest there to-morrow on behalf of the Griffin Life Insurance Office, and we are travelling down to-night as it is rather a cross-country journey.”

“But why the box of magic?” asked Boscovitch, glancing up at the hat-rack.

“I never go away from home without it,” answered Thorndyke. “One never knows what may turn up; the trouble of carrying it is small when set off against the comfort of having appliances at hand in an emergency.”