"Our own car isn't down here. One came out from the garage in Elmer's Dale to fetch him in time for the train."
"Was Mr. Pace quite his usual self?"
"Absolutely. Most normal in every way."
"Now, can you describe this visitor at all?"
"I'm afraid not. I didn't see him. Mrs. Middleton showed him straight into the gun-room and then came to tell my uncle."
"What did your uncle say?"
"He seemed rather annoyed, but went off at once. It was about five minutes later that I heard the sound of raised voices. I ran out into the hall and almost collided with Mrs. Middleton. Then we heard the shot. The gun-room door was locked on the inside, and we had to go right round the house to the window. Of course that took some time, and the murderer had been able to get well away. My poor uncle"—her voice faltered—"had been shot through the head. I saw at once that he was dead. I sent Mrs. Middleton for the police. I was careful to touch nothing in the room but to leave it exactly as I found it."
I nodded approval.
"Now, as to the weapon?"
