"Think a moment. Surely you can remember."
"By the door leading into the hall, I think."
"Which side of the door?"
"How can I tell?" the man asked piteously. "I was too—nervous. . . . But I think it was on the right-hand side of the door."
"The right-hand side when entering or leaving the room?"
"As you go out."
"That would be where the bookcase stands?"
"Yes."
Vance appeared satisfied.
"Now, there's the question of the gun," he said. "Why did you take it to Miss St. Clair?"
"I was a coward," the man replied. "I was afraid they might find it at my apartment. And I never imagined she would be suspected."
"And when she was suspected, you at once took the gun away and threw it into the East River?"
"Yes."
"I suppose there was one cartridge missing from the magazine, too—which in itself would have been a suspicious circumstance."
"I thought of that. That's why I threw the gun away."
Vance frowned.
"That's strange. There must have been two guns. We dredged the river, y' know, and found a Colt automatic, but the magazine was full. . . . Are you sure, Captain, that it was your gun you took from Miss St. Clair's and threw over the bridge?"
I knew no gun had been retrieved from the river, and I wondered what he was driving at. Was he,
