"That stiletto came from there? It was a mere guess. Something Jeremy Spence said gave me the idea. I suggested that the stiletto belonged to Margharita Clayton. He showed that he knew positively that it did not." He paused. "What did they say?" he asked with some curiosity.
"Admitted that it was very like a toy dagger they'd once had. But it had been mislaid some weeks ago, and they had really forgotten about it. I suppose Rich pinched it from there."
"A man who likes to play safe, Mr. Jeremy Spence," said Hercule Poirot. He muttered to himself: "Some weeks ago. Oh yes, the planning began a long time ago."
"Eh, what's that?"
"We arrive," said Poirot. The taxi drew up at Lady Chatterton's house in Cheriton Street. Poirot paid the fare.
Margharita Clayton was waiting for them in the room upstairs. Her face hardened when she saw Miller.
"I didn't know -"
"You did not know who the friend was I proposed to bring?"
"Inspector Miller is not a friend of mine."
"That rather depends on whether you want to see justice done or not, Mrs. Clayton. Your husband was murdered -"
"And now we have to talk of who killed him," said Poirot quickly. "May we sit down, madame?"
Slowly Margharita sat down in a high-backed chair facing the two men.
"I ask," said Poirot, addressing both his hearers, "to listen to me patiently. I think I now know what happened on that fatal evening at Major Rich's flat. We started, all of us, by an assumption that was not true - the assumption that there were only two persons who had the opportunity of putting the body in the chest - that is to say, Major Rich or William Burgess. But we were wrong - there was a third person at the flat that evening who had an equally good opportunity to do so."
"And who was that?" demanded Miller sceptically. "The lift boy?"
"No. Arnold Clayton."
"What? Concealed his own dead body? You're crazy."
"Naturally not a dead body - a live one. In simple terms, he hid himself in the chest. A thing that has often been done throughout the course of history. The dead bride in the Mistletoe Bough, Iachimo with designs on the virtue of Imogen, and so on. I thought of it as soon as I saw that there had been holes bored in the chest quite recently. Why? They were made so that there might be a sufficiency of air in the chest. Why was the screen moved from its usual position that evening? So as to hide the chest from the people in the room. So that the hidden man could lift the lid from time to time and relieve his cramp, and hear better what went on."
"But why," demanded Margharita wide-eyed with astonishment. "Why should Arnold want to hide in the chest?"
"Is it you who ask that, madame? Your husband was a jealous man. He was also an inarticulate man. 'Bottled up,' as your friend Mrs. Spence put it. His jealousy mounted. It tortured him! Were you or were you not Rich's mistress? He did not know! He had to know! So - a 'telegram from Scotland,' the telegram that was never sent and that no one ever saw! The overnight bag is packed and conveniently forgotten at the club. He goes to the flat at a time when he has probably ascertained Rich will be out. He tells the valet he will write a note. As soon as he is left alone, he bores the holes in the chest, moves the screen, and climbs inside the chest. Tonight he will know the truth. Perhaps his wife will stay behind the others, perhaps she will go but come back again. That night the desperate, jealousy racked man will know "
"You're not saying he stabbed himself?" Miller's voice was incredulous. "Nonsense!"
"Oh no, someone else stabbed him. Somebody who knew he was there. It was murder all right. Carefully planned, long premeditated murder. Think of the other characters in Othello. It is Iago we should have remembered. Subtle poisoning of Arnold Clayton's mind; hints, suspicions. Honest Iago, the faithful friend, the man you always believe! Arnold Clayton believed him. Arnold Clayton let his jealousy be played upon, be roused to fever pitch. Was the plan of hiding in the chest Arnold's own idea? He may have thought it was - probably he did think so! And so the scene is set. The stiletto, quietly abstracted some weeks earlier, is ready. The evening comes. The lights are low, the gramophone is playing, two couples dance, the odd man out is busy at the record cabinet, close to the Spanish chest and its masking screen. To slip behind the screen, lift
the lid and strike - Audacious, but quiet easy!"
"Clayton would have cried out!"
"Not if he were drugged," said Poirot. "According to the valet, the body was 'lying like a man asleep.' Clayton was asleep, drugged by the only man who could have drugged him, the man he had had a drink with at the club."
"Jock?" Margharita's voice rose high in childlike surprise. "Jock? Not dear old Jock. Why, I've known Jock all my life! Why on earth should Jock...?"
Poirot turned on her.