I couldn’t deny it,—or, rather, I could deny it, but only because of my still unshattered faith in Amos Gately. I could bring no proof of my denial.

“But,” I said, musingly, “we haven’t yet proved Gately mixed up in——”

“What!” cried Wise; “isn’t this enough proof? These blank letters, for that’s what they are,—the proved visit here of Sadie, ‘The Link,’ and the fact that Gately was shot,—by someone,—with no known reason,—all that goes to show that the murderer had some secret motive, some unknown cause for getting Gately out of the way.”

“I see it, as you put it,” I said, “but I will not believe Amos Gately a spy,—or conniving at spy business until I have to. I shall continue to believe he was a tool—an innocent tool—of the Rodman and Sadie Kent combination.”

“All right, Brice, keep your faith as long as you can, but, I tell you, you’ll soon have to admit that I’m right. Gately, as we all know, was a peculiar man. He had few friends, he had little or no social life, and he did have secret callers and a secret mode of entrance and exit from his offices. All this shows something to hide,—it is unexplainable for a man who has nothing to conceal.”

“All right, Wise,” I said, finally, “I suppose you are right. But still we must continue our search for the murderer. We don’t seem to progress much in that matter.”

“Not yet, but soon,” Wise said, optimistically; “the ax is laid at the root of the tree,—we are on the right track——”

“Meaning Case Rivers?” I cried, in alarm.

“Meaning Case Rivers,—perhaps,” he returned. “I’m not as sure as Zizi is that the evidence points to him as the murderer, but we must conclude that he was in this room the day of the murder,—and what else could he have been here for?”

“What else?” I stormed. “Dozens of things! Hundreds of things! Why, man alive, every person who set foot in this room on that day didn’t necessarily kill Amos Gately!”