well benediction upon some anonymous person—was not all that one could have hoped for in the line of plausibility. Fifthly, he is an impulsive gambler, given to taking chances; and his experiences in South Africa would certainly have familiarized him with fire-arms. Sixthly, he was rather eager to involve Leacock, and did a bit of caddish tale-bearing to that end, even informing you that he saw the Captain on the spot at the fatal moment. Seventhly—but why bore you? Have I not supplied you with all the factors you hold so dear,—what are they now?—motive, time, place, opportunity, conduct? All that's wanting is the criminal agent. But then, the Captain's gun is at the bottom of the East River; so you're not very much better off in his case, what?"
Markham had listened attentively to Vance's summary. He now sat in rapt silence gazing down at the desk.
"How about a little chat with Pfyfe before you make any final move against the Captain?" suggested Vance.
"I think I'll take your advice," answered Markham slowly, after several minutes' reflection. Then he picked up the telephone. "I wonder if he's at his hotel now."
"Oh, he's there," said Vance. "Watchful waitin' and all that."
Pfyfe was in; and Markham requested him to come at once to the office.
"There's another thing I wish you'd do for me," said Vance, when the other had finished telephoning. "The fact is, I'm longing to know what everyone was doing during the hour of Benson's dissolution—that
