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."
"Oh, I don't mean material clues. I wanted to learn about Pfyfe's nature—his psychology, y' know,—particularly his personality as a gambler. Y' see, it was the crime of a calculating, cold-blooded gambler; and no one but a man of that particular type could possibly have committed it."
Markham apparently was not interested just now in Vance's theories.
"Did you believe the Major," he asked, "when he said his brother had lied to him about the presence of the jewels in the safe?"
"The wily Alvin prob'bly never mentioned 'em to Anthony," rejoined Vance. "An ear at the door during one of Pfyfe's visits was, I fancy, his source of information. . . . And speaking of the Major's eavesdropping, it was that which suggested to me a possible motive for the crime. Your man Stitt, I hope, will clarify that point."
"According to your theory, the crime was rather hastily conceived." Markham's statement was in reality a question.
"The details of its execution were hastily conceived," corrected Vance. "The Major undoubtedly had been contemplating for some time elim'nating his brother. Just how or when he was to do it, he hadn't decided. He may have thought out and re-
