“It’s all too vague and intangible,” Markham observed kindly. “I’m inclined to think the tragedy has upset you. Perhaps after a day or two——”
Greene lifted a protesting hand.
“It’s no go. I’m telling you, Markham, the police will never find their burglar. I feel it—here.” He mincingly laid a manicured hand on his breast.
Vance had been watching him with a faint suggestion of amusement. Now he stretched his legs before him and gazed up at the ceiling.
“I say, Mr. Greene—pardon the intrusion on your esoteric gropings—but do you know of any one with a reason for wanting your two sisters out of the way?”
The man looked blank for a moment.
“No,” he answered finally; “can’t say that I do. Who, in Heaven’s name, would want to kill two harmless women?”
“I haven’t the groggiest notion. But, since you repudiate the burglar theory, and since the two ladies were undoubtedly shot, it’s inferable that some one sought their demise; and it occurred to me that you, being their brother and domiciled en famille, might know of some one who harbored homicidal sentiments toward them.”
Greene bristled, and thrust his head forward. “I know of no one,” he blurted. Then, turning to Markham, he continued wheedlingly: “If I had the slightest suspicion, don’t you think I’d come out with it? This thing has got on my nerves. I’ve been mulling over it all night, and it’s—it’s bothersome, frightfully bothersome.”
Markham nodded non-committally, and rising, walked to the window, where he stood, his hands behind him, gazing down on the gray stone masonry of the Tombs.