“And there were other things! Apparently, just before his death, Sir Gervase had sat down at his desk, scrawled the word SORRY on a sheet of notepaper and had then shot himself. But before this last action he had, for some reason or other altered the position of his chair, turning it so that it was sideways to the desk. Why? There must be some reason. I began to see light when I found, sticking to the base of a heavy bronze statuette, a tiny sliver of looking glass. . . .
“I asked myself, how does a sliver of broken looking glass come to be there?—and an answer suggested itself to me. The mirror had been broken, not by a bullet, but by being struck with the heavy bronze figure. That mirror had been broken deliberately.
“But why? I returned to the desk and looked down at the chair. Yes, I saw now. It was all wrong. No suicide would turn his chair round, lean over the edge of it, and then shoot himself. The whole thing was arranged. The suicide was a fake!
“And now I come to something very important. The evidence of Miss Cardwell. Miss Cardwell said that she hurried downstairs last night because she thought that the second gong had sounded. That is to say, she thought that she had already heard the first gong.
“Now observe, if Sir Gervase was sitting at his desk in the normal fashion when he was shot, where would the bullet go? Travelling in a straight line, it would pass through the door, if the door were open, and finally hit the gong!
“You see now the importance of Miss Cardwell’s statement? No one else heard the first gong, but, then, her room is situated immediately above this one, and she was in the best position for hearing it. It would consist of only one single note, remember.
“There could be no question of Sir Gervase’s shooting himself. A dead man cannot get up, shut the door, lock it and arrange himself in a convenient position! Somebody else was concerned, and therefore it was not suicide, but murder. Someone whose presence was easily accepted by Sir Gervase, stood by his side talking to him. Sir Gervase was busy writing, perhaps. The murderer brings the pistol up to the right side of his head and fires. The deed is done! Then quick, to work! The murderer slips on gloves. The door is locked, the key put in Sir Gervase’s pocket. But supposing that one loud note of the gong has been heard? Then it will be realized that the door was open, not shut, when the shot was fired. So the chair is turned, the body rearranged, the dead man’s fingers pressed on the pistol, the mirror deliberately smashed. Then the murderer goes out through the window, jars it shut, steps, not on the grass, but in the flower bed where footprints can be smoothed out afterwards; then round the side of the house and into the drawing room.”
He paused and said:
“There was only one person who was out in the garden when the shot was fired. That same person left her footprints in the flower bed and her fingerprints on the outside of the window.”
He came towards Ruth.
“And there was a motive, wasn’t there? Your father had learnt of your secret marriage. He was preparing to disinherit you.”
“It’s a lie!” Ruth’s voice came scornful and clear. “There’s not a word of truth in your story. It’s a lie from start to finish!”
“The proofs against you are very strong, madame. A jury may believe you. It may not!”
“She won’t have to face a jury.”
The others turned—startled. Miss Lingard was on her feet. Her face altered. She was trembling all over.
“I shot him. I admit it! I had my reason. I—I’ve been waiting for some time. M. Poirot is quite right. I followed him in here. I had taken the pistol out of the drawer earlier. I stood beside him talking about the book—and I shot him. That was just after eight. The bullet struck the gong. I never dreamt it would pass right through his head like that. There wasn’t time to go out and look for it. I locked the door and put the key in his pocket. Then I swung the chair round, smashed the mirror, and, after scrawling “Sorry” on a piece of paper, I went out through the window and shut it the way M. Poirot showed you. I stepped in the flower bed, but I smoothed out the footprints with a little rake I had put there ready. Then I went round to the drawing room. I had left the window open. I didn’t know Ruth had gone out through it. She must have come round the front of the house while I went round the back. I had to put the rake away, you see, in a shed. I waited in the drawing room till I heard someone coming downstairs and Snell going to the gong, and then—”
She looked at Poirot.
“You don’t know what I did then?”
“Oh yes, I do. I found the bag in the wastepaper basket. It was very clever, that idea of yours. You did what children love to do. You blew up the bag and then hit it. It made a satisfactory big bang. You threw the bag into the wastepaper basket and rushed out into the hall. You had established the time of the suicide—and an alibi for yourself. But there was still one thing that worried you. You had not had time to pick up the bullet. It must be somewhere near the gong. It was essential that the bullet should be found in the study somewhere near the mirror. I didn’t know when you had the idea of taking Colonel Bury’s pencil—”
“It was just then,” said Miss Lingard. “When we all came in from the hall. I was surprised to see Ruth in the room. I realized she must have come from the garden through the window. Then I noticed Colonel Bury’s pencil lying on the bridge table. I slipped it into my bag. If, later, anyone saw me pick up the bullet, I could pretend it was the pencil. As a matter of fact, I didn’t think anyone saw me pick up the bullet. I dropped it by the mirror while you were looking at the body. When you tackled me on the subject, I was very glad I had thought of the pencil.”
“Yes, that was clever. It confused me completely.”
“I was afraid someone must hear the real shot, but I knew everyone was dressing for dinner, and would be shut away in their rooms. The servants were in their quarters. Miss Cardwell was the only one at all likely to hear it, and she would probably think it was a backfire. What she did hear was the gong. I thought—I thought everything had gone without a hitch. . . .”
Mr. Forbes said slowly in his precise tones:
“This is a most extraordinary story. There seems no motive—”
Miss Lingard said clearly: “There was a motive. . . .”
She added fiercely:
“Go on, ring up the police! What are you waiting for?”
Poirot said gently:
&nbs
p; “Will you all please leave the room? Mr. Forbes, ring up Major Riddle. I will stay here till he comes.”