The detective takes a spoon and dips up his wax, letting it drip from the spoon, drop by drop. It is ready for use, and, without seeming aware of the doctor's presence, he busies himself with his impression taking—seeing which, Doctor Heath smokes on, and is silent.

Finally, his mould is set to cool, and the detective resumes his seat; and, quite ignoring that long neglected monosyllable of inquiry, uttered by his host, begins:

"When the burglars, for, no doubt, there were two of them, entered Miss Wardour's dressing room, they carried one dark lantern. This, one of them took, and crept with it into the sleeping room; here, he was, for a moment, troubled. He had prepared himself with the chloroform, but must use his own handkerchief, and that is marked."

"Oh! a burglar with marked linen!"

"Even so. It's nothing unusual. You reason like a reader of too many novels. Burglars are not all escaped convicts, blear eyed and hideous; nor do they all go about in fustian. It's the burglar in broadcloth that makes us the trouble. Fustian starves, and steals, and is soon found out; runs away with its booty, as a dog runs away with its bone. Broadcloth is wiser, just as a skilled workman is wiser than a hod carrier. It brings to its service tact, study,—who knows what, of scientific skill? It looks before it leaps; it plans before it executes; and it covers up all traces of its progress, or else leaves a network of false clues and misleading evidences. Bah! if we had only fustian to deal with, it would not be worth while to be a detective."

"Granted," says the doctor, drumming impatiently upon the table, with the fingers of his strong, white, right hand. "We have to deal with a broadcloth burglar, who marks his linen, and, perhaps, perfumes it. Was it perfumed? I forgot."

"It was not perfumed. I wish it had been. Yes, ours is a broadcloth burglar. When he approached Miss Wardour's bedside, he produced from a convenient pocket, his stupefying drug; and then he looked about for something with which to apply it, and at the same time, no doubt, he berates himself for omitting to provide himself with a plain, small napkin, or piece of linen. There was nothing at hand that was not too large for his purpose, and too coarse, for he understood the delicacy of his undertaking. So, he produced his pocket handkerchief, which, as I said before, was marked; he tears off the half bearing the name, but, in his haste, does not observe that he has left evidence that the name was there. He then saturated the linen, and set the bottle upon the night stand, leaving his two hands free to apply his drug with utmost care. Then he pauses for a moment, to note the effect of his application, or to gaze upon the fair sleeper. And then comes a sound from the outer room, an impatient call, the click of steel implements, no matter what,—he snatches up the dark lantern and, forgetting the bottle, goes out to his comrade."

"You believe there were two?"

"Yes; there were two. These affairs are seldom operated by one man."

"You said this evening that they had blundered. It seems to me that they made a very neat job of the affair."