He examined the appurtenances, for the table was furnished almost like a desk, and he picked up a silver penholder.

It was round and smooth and without chasing or marking of any sort, save for the initials G. L.

“This yours?” he asked, and Lockwood nodded assent.

“I ask you, Doctor Marsh,” Morton turned to the Examiner, “whether that wound which is in Doctor Waring’s neck could have been made with this penholder.”

Startled, Marsh took the implement and carefully scrutinized it. Of usual length, it was tapering and ended in a point. The circumference at the larger end was just about the circumference of the wound in question.

“I must say it could be possible,” Marsh replied, his eyes alternately on the penholder and on the dead man. “Yes, it is exactly the size.”

“And it is strong enough and sharp enough, and it is round,” summed up Morton. “Now, Mr. Lockwood, I make no accusation. I’m no novice, and I know there’s a possibility that this might have been the weapon used, and yet it might not have been used by you. But I will say, that I have much to say to you yet, and I advise you not to try to leave town.”

“I’ve no intention of leaving town or of trying to do so,” Lockwood asserted, “but,” he went on, “would you mind telling me, if I killed the man I was devoted to, how I left the room locked behind me?”

“Those locked rooms bore me,” said Morton, “I’ve read lots of detective stories founded on that plot. Invariably the locked room proves to be vulnerable at some point. I haven’t finished examining the doors and windows myself as yet.”

“Proceed with your examinations, then,” said Lockwood; “if you can find a secret or concealed entrance, it’s more than I can do.”