"Yes."

"And you didn't see him again?"

"No."

She was stirring now, throwing herself about, moaning faintly.

"She is coming out," said the doctor. "Well, I think we have got all we can, eh?"

Poirot nodded. The doctor leaned over Lady Astwell.

"You are waking," he murmured softly. "You are waking now. In another minute you will open your eyes."

The two men waited, and presently Lady Astwell sat upright and stared at them both.

"Have I been having a nap?"

"That's it, Lady Astwell, just a little sleep," said the doctor.

She looked at him.

"Some of your hocus-pocus, eh?"

"You don't feel any the worse, I hope?" he asked.

Lady Astwell yawned.

"I feel rather tired and done up."

The doctor rose.

"I will ask them to send you up some coffee," he said, "and we will leave you for the present."

"Did I - say anything?" Lady Astwell called after them as they reached the door.

Poirot smiled back at her.

"Nothing of great importance, Madame. You informed us that the drawing-room covers needed cleaning."

"So they do," said Lady Astwell. "You needn't have put me into a trance to get me to tell you that." She laughed good-humoredly. "Anything more?"

"Do you remember M. Trefusis picking up a paper-knife in the drawing-room that night?" asked Poirot.

"I don't know, I'm sure," said Lady Astwell. "He may have done so."

"Does a bulge in the curtain convey anything to you?"

Lady Astwell frowned.

"I seem to remember," she said slowly. "No - it's gone, and yet -"

"Do not distress yourself, Lady Astwell," said Poirot quickly, "it is of no importance - of no importance whatever."

The doctor went with Poirot to the latter's room.

"Well," said Cazalet, "I think this explains things pretty clearly. No doubt when Sir Reuben was dressing down the secretary, the latter grabbed tight hold on a paper-knife, and had to exercise a good deal of self-control to prevent himself answering back. Lady Astwell's conscious mind was wholly taken up with the problem of Lily Margrave, but her subconscious mind noticed and misconstrued the action.

"It implanted in her the firm conviction that Trefusis murdered Sir Reuben. Now we come to the bulge in the curtain. That is interesting. I take it from what you have told me of the Tower room that the desk was right in the window. There are curtains across that window, of course?"

"Yes, mon ami, black velvet curtains."

"And there is room in the embrasure of the window for anyone to remain concealed behind them?"

"There would be just room, I think."

"Then there seems at least a possibility," said the doctor slowly, "that someone was concealed in the room, but if so it could not be the secretary, since they both saw him leave the room. It could not be Victor Astwell, for Trefusis met him going out, and it could not be Lily Margrave. Whoever it was must have been concealed there before Sir Reuben entered the room that evening. You have told me pretty well how the land lies. Now what about Captain Naylor? Could it have been he who was concealed there?"

"It is always possible," admitted Poirot. "He certainly dined at the hotel, but how soon he went out afterward is difficult to fix exactly. He returned about half-past twelve."

"Then it might have been he," said the doctor, "and if so, he committed the crime. He had the motive, and there was a weapon near at hand. You don't seem satisfied with the idea, though?"

"Me, I have other ideas," confessed Poirot. "Tell me now, M. le Docteur, supposing for one minute that Lady Astwell herself had committed this crime, would she necessarily betray the fact in the hypnotic state?"

The doctor whistled.

"So that's what you are getting at? Lady Astwell is the criminal, eh? Of course - it is possible; I never thought of it till this minute. She was the last to be with him, and no one saw him alive afterward. As to your question: I should be inclined to say - No. Lady Astwell would go into the hypnotic state with a strong mental reservation to say nothing of her own part in the crime. She would answer my questions truthfully, but she would be dumb on that one point. Yet I should hardly have expected her to be so insistent on Mr Trefusis's guilt."

"I comprehend," said Poirot. "But I have not said that I believe Lady Astwell to be the criminal. It is a suggestion, that is all."

"It is an interesting case," said the doctor after a minute or two. "Granting Charles Leverson is innocent, there are so many possibilities, Humphrey Naylor, Lady Astwell, and even Lily, Margrave."

"There is another you have not mentioned," said Poirot quietly, "Victor Astwell. According to his own story, he sat in his room with the door open waiting for Charles Leverson's return, but we have only his own word for it, you comprehend?"

"He is the bad-tempered fellow, isn't he?" asked the doctor. "The one you told me about?"

"That is so," agreed Poirot.

The doctor rose to his feet.

"Well, I must be getting back to town. You will let me know how things shape, won't you?"

After the doctor had left, Poirot pulled the bell for George.

"A cup of tisane, George. My nerves are much disturbed."

"Certainly, sir," said George. "I will prepare it immediately."

Ten minutes later he brought a steaming cup to his master. Poirot inhaled the noxious fumes with pleasure. As he sipped it, he soliloquized aloud.

"The chase is different all over the world. To catch the fox you ride hard with the dogs. You shout, you run, it is a matter of speed. I have not shot the stag myself, but I understand that to do so you crawl for many long, long hours upon your stomach. My friend Hastings has recounted the affair to me. Our method here, my good George, must be neither of these. Let us reflect upon the household cat. For many long, weary hours, he watches the mouse hole, he makes no movement, he betrays no energy, but - he does not go away."

He sighed and put the empty cup down on its saucer.

"I told you to pack for a few days. Tomorrow, my good George, you will go to London and bring down what is necessary for a fortnight."

"Very good, sir," said George. As usual he displayed no emotion.

The apparently permanent presence of Hercule Poirot at Mon Repos was disquieting to many people. Victor Astwell remonstrated with his sister-in-law about it.

"It's all very well, Nancy. You don't know what fellows of that kind are like. He has found jolly comfortable quarters here, and he is evidently going to settle down comfortably for about a month, charging you two guineas a day all the while."

Lady Astwell's reply was to the effect that she could manage her own affairs without interference.

Lily Margrave tried earnestly to conceal her perturbation. At the time, she had felt sure that Poirot believed her story. Now she was not so certain.

Poirot did not play an entirely quiescent game. On the fifth day of his sojourn he brought down a small thumbograph alb.u.m to dinner. As a method of getting the thumbprints of the household, it seemed a rather clumsy device, yet not perhaps so clumsy as it seemed, since no one could afford to refuse his thumbprints. Only after the little man had retired to bed did Victor Astwell state his views.

"You see what it means, Nancy. He is out after one of us."

"Don't be absurd, Victor."

"Well, what other meaning could that blinking little book of his have?"

"M, Poirot knows what he is doing," said Lady Astwell complacently, and looked with some meaning at Owen Trefusis.

On another occasion Poirot introduced the game of tracing footprints on a sheet of paper. The following morning, going with his soft cat-like tread into the library, the detective startled Owen Trefusis, who leaped from his chair as though he had been shot.

"You must really excuse me, M. Poirot," he said primly, "but you have us on the jump."

"Indeed, how is that?" demanded the little man innocently.

"I will admit," said the secretary, "that I thought the case against Charles Leverson utterly overwhelming, You apparently do not find it so."

Poirot was standing looking out of the window. He turned suddenly to the other.

"I shall tell you something, M. Trefusis - in confidence."

"Yes?"

Poirot seemed in no hurry to begin. He waited a minute, hesitating. When he did speak, his opening words were coincident with the opening and shutting of the front door. For a man saying something in confidence, he spoke rather loudly, his voice drowning the sound of a footstep in the hall outside.

"I shall tell you this in confidence, Mr Trefusis. There is new evidence. It goes to prove that when Charles Leverson entered the Tower room that night, Sir Reuben was already dead."

The secretary stared at him.

"But what evidence? Why have we not heard of it?"

"You will hear," said the little man mysteriously. "In the meantime, you and I alone know the secret."

He skipped nimbly out of the room, and almost collided with Victor Astwell in the hall outside.

"You have just come in, eh, Monsieur?"

Astwell nodded.

"Beastly day outside," he said, breathing hard, "cold and blowy."

"Ah," said Poirot, "I shall not promenade myself today - me, I am like a cat, I sit by the fire and keep myself warm."

"ca marche, George," he said that evening to the faithful valet, rubbing his hands as he spoke, "they are on the tenterhooks - the jump! It is hard, George, to play the game of the cat, the waiting game, but it answers, yes, it answers wonderfully. Tomorrow we make a further effect."

On the following day, Trefusis was obliged to go up to town. He went up by the same train as Victor Astwell. No sooner had they left the house than Poirot was galvanized into a fever of activity.

"Come, George, let us hurry to work. If the housemaid should approach these rooms, you must delay her. Speak to her sweet nothings, George, and keep her in the corridor."

He went first to the secretary's room, and began a thorough search. Not a drawer or a shelf was left uninspected. Then he replaced everything hurriedly, and declared his quest finished. George, on guard in the doorway, gave way to a deferential cough.

"If you will excuse me, sir?"

"Yes, my good George?"

"The shoes, sir. The two pairs of brown shoes were on the second shelf, and the patent-leather ones were on the shelf underneath. In replacing them you have reversed the order."

"Marvelous!" cried Poirot, holding up his hands. "But let us not distress ourselves over that. It is of no importance, I a.s.sure you, George. Never will M. Trefusis notice such a trifling matter."

"As you think, sir," said George.

"It is your business to notice such things," said Poirot encouragingly as he clapped the other on the shoulder. "It reflects credit upon you."

The valet did not reply, and when, later in the day, the proceeding was repeated in the room of Victor Astwell, he made no comment on the fact that Mr Astwell's underclothing was not returned to its drawers strictly according to plan. Yet, in the second case at least, events proved the valet to be right and Poirot wrong. Victor Astwell came storming into the drawing-room that evening.

"Now, look here, you blasted little Belgian jackanapes, what do you mean by searching my room? What the devil do you think you are going to find there? I won't have it, do you hear? That's what comes of having a ferreting little spy in the house."

Poirot's hands spread themselves out eloquently as his words tumbled one over the other. He offered a hundred apologies, a thousand, a million. He had been maladroit, officious, he was confused. He had taken an unwarranted liberty. In the end the infuriated gentleman was forced to subside, still growling. And again that evening, sipping his tisane, Poirot murmured to George: "It marches, my good George, yet - it marches."

"Friday," observed Hercule Poirot thoughtfully, "is my lucky day."

"Indeed, sir."

"You are not superst.i.tious, perhaps, my good George?"

"I prefer not to sit down thirteen at table, sir, and I am adverse to pa.s.sing under ladders. I have no superst.i.tions about a Friday, sir."

"That is well," said Poirot, "for, see you, today we make our Waterloo."

"Really, sir."

"You have such enthusiasm, my good George, you do not even ask what I propose to do."