‘Chère Madame,
It is with infinite pleasure that I look forward to the felicity of meeting you again. After your so amiable reply to my letter, I can hardly restrain my impatience. I have never forgotten those days in Paris. It is most cruel that you should be leaving London tomorrow. However, before very long, and perhaps sooner than you think, I shall have the joy of beholding once more the lady whose image has ever reigned supreme in my heart.
Believe, chère madame, all the assurances of my most devoted and unaltered sentiments –
ARMAND DE LA ROCHEFOUR.’
Poirot handed the letter back to Halliday with a bow.
‘I fancy, monsieur, that you did not know that your daughter intended renewing her acquaintance with the Count de la Rochefour?’
‘It came as a thunderbolt to me! I found this letter in my daughter’s handbag. As you probably know, Monsieur Poirot, this so-called count is an adventurer of the worst type.’
Poirot nodded.
‘But I want to know how you knew of the existence of this letter?’
My friend smiled. ‘Monsieur, I did not. But to track footmarks and recognize cigarette-ash is not sufficient for a detective. He must also be a good psychologist! I knew that you disliked and mistrusted your son-in-law. He benefits by your daughter’s death; the maid’s description of the mysterious man bears a sufficient resemblance to him. Yet you are not keen on his track! Why? Surely because your suspicions lie in another direction. Therefore you were keeping something back.’
‘You’re right, Monsieur Poirot. I was sure of Rupert’s guilt until I found this letter. It unsettled me horribly.’
‘Yes. The Count says “Before very long, and perhaps sooner than you think.” Obviously he would not want to wait until you should get wind of his reappearance. Was it he who travelled down from London by the twelve-fourteen, and came along the corridor to your daughter’s compartment? The Count de la Rochefour is also, if I remember rightly, tall and dark!’
The millionaire nodded.
‘Well, monsieur, I will wish you good day. Scotland Yard has, I presume, a list of the jewels?’
‘Yes, I believe Inspector Japp is here now if you would like to see him.’
Japp was an old friend of ours, and greeted Poirot with a sort of affectionate contempt.
‘And how are you, monsieur? No bad feeling between us, though we have got our different ways of looking at things. How are the “little grey cells”, eh? Going strong?’
Poirot beamed upon him. ‘They function, my good Japp; assuredly they do!’
‘Then that’s all right. Think it was the Honourable Rupert, or a crook? We’re keeping an eye on all the regular places, of course. We shall know if the shiners are disposed of, and of course whoever did it isn’t going to keep them to admire their sparkle. Not likely! I’m trying to find out where Rupert Carrington was yesterday. Seems a bit of a mystery about it. I’ve got a man watching him.’
‘A great precaution, but perhaps a day late,’ suggested Poirot gently.
‘You always will have your joke, Monsieur Poirot. Well, I’m off to Paddington. Bristol, Weston, Taunton, that’s my beat. So long.’
‘You will come round and see me this evening, and tell me the result?’
‘Sure thing, if I’m back.’
‘The good inspector believes in matter in motion,’ murmured Poirot as our friend departed. ‘He travels; he measures footprints; he collects mud and cigarette-ash! He is extremely busy! He is zealous beyond words! And if I mentioned psychology to him, do you know what he would do, my friend? He would smile! He would say to himself: “Poor old Poirot! He ages! He grows senile!” Japp is the “younger generation knocking on the door.” And ma foi! They are so busy knocking that they do not notice that the door is open!’
‘And what are you going to do?’
‘As we have carte blanche, I shall expend threepence in ringing up the Ritz – where you may have noticed our Count is staying. After that, as my feet are a little damp, and I have sneezed twice, I shall return to my rooms and make myself a tisane over the spirit lamp!’
I did not see Poirot again until the following morning. I found him placidly finishing his breakfast.
‘Well?’ I inquired eagerly. ‘What has happened?’
‘Nothing.’
‘But Japp?’
‘I have not seen him.’
‘The Count?’
‘He left the Ritz the day before yesterday.’
‘The day of the murder?’
‘Yes.’
‘Then that settles it! Rupert Carrington is cleared.’
‘Because the Count de la Rochefour has left the Ritz? You go too fast, my friend.’
‘Anyway, he must be followed, arrested! But what could be his motive?’
‘One hundred thousand dollars’ worth of jewellery is a very good motive for anyone. No, the question to my mind is: why kill her? Why not simply steal the jewels? She would not prosecute.’
‘Why not?’
‘Because she is a woman, mon ami. She once loved this man. Therefore she would suffer her loss in silence. And the Count, who is an extremely good psychologist where women are concerned – hence his successes – would know that perfectly well! On the other hand, if Rupert Carrington killed her, why take the jewels which would incriminate him fatally?’
‘As a blind.’
‘Perhaps you are right, my friend. Ah, here is Japp! I recognize his knock.’
The inspector was beaming good-humouredly.
‘Morning, Poirot. Only just got back. I’ve done some good work! And you?’
‘Me, I have arranged my ideas,’ replied Poirot placidly.
Japp laughed heartily.
‘Old chap’s getting on in years,’ he observed beneath his breath to me. ‘That won’t do for us young folk,’ he said aloud.
‘Quel dommage?’ Poirot inquired.
‘Well, do you want to hear what I’ve done?’