bit of thinking comes rather late in the day.'
'It is never too late,' said Poirot. 'Not with me, you understand. Thank you, Mademoiselle.'
She left us to return to Bryan Martin.
'There, Poirot,' I said. 'Surely that shakes your belief.'
'No, Hastings. On the contrary - it strengthens it.'
Despite that valiant assertion I believed myself that secretly he had weakened.
During the days that followed he never once mentioned the Edgware case. If I spoke of it, he answered monosyllabically and without interest. In other words, he had washed his hands of it. Whatever he had had lingering in his fantastic brain, he had now been forced to admit that it had not materialized - that his first conception of the case had been the true one and that Ronald Marsh was only too truly accused of the crime. Only, being Poirot, he could not admit openly that such was the case! Therefore he pretended to have lost interest.
Such, as I say, was my interpretation of his attitude. It seemed borne out by the facts. He took no faintest interest in the police court proceedings, which in any case were purely formal. He busied himself with other cases and, as I say, he displayed no interest when the subject was mentioned.
It was nearly a fortnight later than the events mentioned in my last chapter when I came to realize that my interpretation of his attitude was entirely wrong.
It was breakfast time. The usual heavy pile of letters lay by Poirot's plate. He sorted through them with nimble fingers. Then he uttered a quick exclamation of pleasure and picked up a letter with an American stamp on it.
He opened it with his little letter-opener. I looked on with interest since he seemed so moved to pleasure about it. There was a letter and a fairly thick enclosure.
Poirot read the former through twice, then he looked up.
'Would you like to see this, Hastings?'
I took it from him. It ran as follows:
Dear M. Poirot, - I was much touched by your kind - your very kind letter. I have been feeling so bewildered by everything. Apart from my terrible grief, I have been so affronted by the things that seem to have been hinted about Carlotta - the dearest, sweetest sister that a girl ever had. No, M. Poirot, she did not take drugs. I'm sure of it. She had a horror of that kind of thing. I've often heard her say so. If she played a part in that poor man's death, it was an entirely innocent one - but of course her letter to me proves that. I am sending you the actual letter itself since you ask me to do so. I hate parting with the last letter she ever wrote, but I know you will take care of it and let me have it back, and if it helps you to clear up some of the mystery about her death, as you say it may do - why, then, of course it must go to you.
You ask whether Carlotta mentioned any friend specially in her letters. She mentioned a great many people, of course, but nobody in a very outstanding way. Bryan Martin whom we used to know years ago, a girl called Jenny Driver, and a Captain Ronald Marsh were, I think, the ones she saw most of.
I wish I could think of something to help you. You write so kindly and with such understanding, and you seem to realize what Carlotta and I were to each other.
Gratefully yours,
Lucie Adams
P.S. An officer has just been here for the letter. I told him that I had already mailed it to you. This, of course, was not true, but I felt somehow or other that it was important you should see it first. It seems Scotland Yard need it as evidence, against the murderer. You will take it to them. But, oh! please be sure they let you have it back again some day. You see, it is Carlotta's last words to me.
'So you wrote yourself to her,' I remarked as I laid the letter down. 'Why did you do that, Poirot? And why did you ask for the original of Carlotta Adams' letter?'
He was bending over the enclosed sheets of the letter I mentioned.
'In verity I could not say, Hastings - unless it is that I hoped against hope that the original letter might in some way explain the inexplicable.'
'I don't see how you can get away from the text of that letter.