Markham stared at him incredulously.
"How, in Heaven's name, are you going to do that?"
"By those primitive deductive methods to which you so touchingly pin your faith," he answered easily. "But come; let us repair to the scene of the crime."
He moved toward the door, Markham reluctantly following in a state of perplexed irritation.
"But you know the body was removed," the latter protested; "and the place by now has no doubt been straightened up."
"Thank Heaven for that!" murmured Vance. "I'm not particularly fond of corpses; and untidiness, y' know, annoys me frightfully."
As we emerged into Madison Avenue, he signalled to the commissionnaire for a taxicab, and without a word, urged us into it.
"This is all nonsense," Markham declared ill-naturedly, as we started on our journey up town. "How do you expect to find any clues now? By this time everything has been obliterated."
"Alas, my dear Markham," lamented Vance, in a tone of mock solicitude, "how woefully deficient you are in philosophic theory! If anything, no matter how inf'nitesimal, could really be obliterated, the universe, y' know, would cease to exist,—the cosmic problem would be solved, and the Creator would write Q.E.D. across an empty firmament. Our only chance of going on with this illusion we call Life, d' ye see, lies in the fact that consciousness is like an inf'nite decimal point. Did you, as a child, ever try to complete the decimal, one-third, by filling a whole sheet
