"Certainly. But look!"

Dr. Lepardo re-entered the inner office, carrying several files.

"See! He begins to destroy these letters. He has certainly taken many away. If you look you see that he has torn pages from the private accounts on the desk. He is disturbed by Mr. Someheimer. Can you know the address of his lady secretary-typist?"

Harborne's eyes sparkled appreciatively.

"You're pretty wide at this business, doctor," he confessed. "I'm looking after her myself. But Mr. Rohscheimer doesn't know, and all the staff have gone long ago."

"Ah!" rumbled Dr. Lepardo, dropping his glass into the sack-like pocket. "No Arab or such person has done this. He was one who wore gloves. So I no longer am interested. Here"—placing a small object on the desk beside the yataghan—"is new evidence I find for you. It is a boot-button—foreign. Ah! if the great Lemage could be here. It is his imagination that makes him supreme. In his imagination he would murder again the poor Graham with the yataghan. He would lose his boot-button. He would run away—as Mr. Heimar comes in—to some hiding-place, taking with him the bills and the letters he had stolen, and the notes from the safe. Once in his secret retreat, he would arrest himself—and behold, in an hour—in ten minutes—his hand would be upon the shoulder of the other assassin. Ah! such a case would be joy to him. He would revel. He would gloat."

Harborne nodded.

"If Mr. Lemage would come and revel with me for half an hour I wouldn't say no to learning from him," he said. "But it isn't likely—particularly considering that this is a Séverac Bablon case."

"Ah!" rumbled Dr. Lepardo, "you should travel, my friend. You would learn much of the imagination in the desert of Sahara, in the forests of Yucatan."

"You know," continued Harborne, turning to Simons, "these Séverac Bablon cases—I don't mind admitting it—are over my weight. They bristle with clues. We get to know of addresses he uses—people he's acquainted with—and what good does it do us? Not a ha'p'orth. Of course, it's a fact that he's had influential friends up to now, but this job, unless I'm mistaken, will alter the complexion of things. What d'you think Victor Lemage will say to this, Dr. Lepardo?"