“Ah! There you have a shrewd intelligence taking advantage of an opportunity. The Major unquestionably planned the crime so as to cast suspicion on the Captain. Leacock had publicly threatened his brother in connection with Miss St. Clair; and the lady was about to dine alone with Alvin. When, in the morning, Alvin was found shot with an army Colt, who but the Captain would be suspected? The Major knew the Captain lived alone, and that he would have diff’culty in establishing an alibi. Do you now see how cunning he was in recommending Pfyfe as a source of information? He knew that if you interviewed Pfyfe, you’d hear of the threat. And don’t ignore the fact that his suggestion of Pfyfe was an apparent afterthought: he wanted to make it appear casual, don’t y’ know.—Astute devil, what?”
Markham, sunk in gloom, was listening closely.
“Now for the opportunity of which he took advantage,” continued Vance. “When you upset his calculations by telling him you knew whom Alvin dined with, and that you had almost enough evidence to ask for an indictment, the idea appealed to him. He knew no charmin’ lady could ever be convicted of murder in this most chivalrous city, no matter what the evidence; and he had enough of the sporting instinct in him to prefer that no one should actu’lly be punished for the crime. Cons’quently, he was willing to switch you back to the lady. And he played his hand cleverly, making it appear that he was most reluctant to involve her.”
“Was that why, when you wanted me to examine his books and to ask him to the office to discuss the confession, you told me to intimate that I had Miss St. Clair in mind?”
“Exactly!”
“And the person the Major was shielding⸺”
“Was himself. But he wanted you to think it was Miss St. Clair.”
“If you were certain he was guilty, why did you bring Colonel Ostrander into the case?”
“In the hope that he could supply us with faggots for the Major’s funeral pyre. I knew he was acquainted intimately with Alvin Benson and his entire camarilla; and I knew, too, that he was an egregious quidnunc who might have got wind of some enmity between the Benson boys, and have suspected the truth. And I also wanted to get a line on Pfyfe, by way of elim’nating every remote counter possibility.”
“But we already had a line on Pfyfe.”