"By no means, if, when the article is deposited, a sufficient wadding of cotton be placed around it. Besides, in our case we were obliged to proceed without noise."
"But you could not have removed—you could not have taken to pieces all articles of furniture in which it would have been possible to make a deposit in the manner you mention. A letter may be compressed into a thin spiral roll, not differing much in shape or bulk from a large knitting-needle, and in this form it might be inserted into the rung of a chair, for example. You did not take to pieces all the chairs?"
"Certainly not; but we did better—we examined the rungs of every chair in the Hotel, and indeed, the jointings of every description of furniture, by the aid of a most powerful microscope. Had there been any traces of recent disturbance we should not have failed to detect it instantly. A single grain of gimlet-dust, for example, would have been as obvious as an apple. Any disorder in the gluing—any unusual gaping in the joints—would have sufficed to insure detection."
"I presume you looked to the mirrors, between the boards and the plates, and you probed the beds and the bedclothes, as well as the curtains and carpets?"
"That, of course; and when we had absolutely completed every particle of the furniture in this way, then we examined the house itself. We divided its entire surface into compartments, which we numbered, so that none might be missed; then we scrutinized each individual square inch throughout the premises, including the two houses immediately adjoining, with the microscope, as before."
"The two houses adjoining!" I exclaimed; "you must have had a great deal of trouble."
"We had; but the reward offered is prodigious."
"You include the grounds about the houses?"
"All the grounds are paved with bricks. They gave us comparatively little trouble. We examined the moss between the bricks, and found it undisturbed."
"You looked among D——'s papers, of course, and into the books of the library?"