Poirot's Early Cases - Agatha Christie [69]
There were two guests in the house. John Wilson had the means. Saint Alard had the motive. Remember, he was a fanatic, and there is no fanatic like a religious fanatic. Could he, by any means, have got hold of John Wilson’s trinitrine?
Another little idea came to me. Ah, you smile at my little ideas! Why had Wilson run out of trinitrine? Surely he would bring an adequate supply from England. I called once more at the house in the Avenue Louise. Wilson was out, but I saw the girl who did his room, Félice. I demanded of her immediately whether it was not true that M. Wilson had lost a bottle from his washstand some little time ago. The girl responded eagerly. It was quite true. She, Félice, had been blamed for it. The English gentleman had evidently thought that she had broken it, and did not like to say so. Whereas she had never even touched it. Without doubt it was Jeannette—always nosing round where she had no business to be—
I calmed the flow of words, and took my leave. I knew now all that I wanted to know. It remained for me to prove my case. That, I felt, would not be easy. I might be sure that Saint Alard had removed the bottle of trinitrine from John Wilson’s washstand, but to convince others, I would have to produce evidence. And I had none to produce!
Never mind. I knew—that was the great thing. You remember our difficulty in the Styles case, Hastings? There again, I knew—but it took me a long time to find the last link which made my chain of evidence against the murderer complete.
I asked for an interview with Mademoiselle Mesnard. She came at once. I demanded of her the address of M. de Saint Alard. A look of trouble came over her face.
‘Why do you want it, monsieur?’
‘Mademoiselle, it is necessary.’
She seemed doubtful—troubled.
‘He can tell you nothing. He is a man whose thoughts are not in this world. He hardly notices what goes on around him.’
‘Possibly, mademoiselle. Nevertheless, he was an old friend of M. Déroulard’s. There may be things he can tell me—things of the past—old grudges—old love-affairs.’
The girl flushed and bit her lip. ‘As you please—but—but I feel sure now that I have been mistaken. It was good of you to accede to my demand, but I was upset—almost distraught at the time. I see now that there is no mystery to solve. Leave it, I beg of you, monsieur.’
I eyed her closely.
‘Mademoiselle,’ I said, ‘it is sometimes difficult for a dog to find a scent, but once he has found it, nothing on earth will make him leave it! That is if he is a good dog! And I, mademoiselle, I, Hercule Poirot, am a very good dog.’
Without a word she turned away. A few minutes later she returned with the address written on a sheet of paper. I left the house. François was waiting for me outside. He looked at me anxiously.
‘There is no news, monsieur?’
‘None as yet, my friend.’
‘Ah! Pauvre Monsieur Déroulard!’ he sighed. ‘I too was of his way of thinking. I do not care for priests. Not that I would say so in the house. The women are all devout—a good thing perhaps. Madame est très pieuse—et Mademoiselle Virginie aussi.’
Mademoiselle Virginie? Was she ‘très pieuse?’ Thinking of the tear-stained passionate face I had seen that first day, I wondered.
Having obtained the address of M. de Saint Alard, I wasted no time. I arrived in the neighbourhood of his château in the Ardennes but it was some days before I could find a pretext for gaining admission to the house. In the end I did—how do you think—as a plumber, mon ami! It was the affair of a moment to arrange a neat little gas leak in his bedroom. I departed for my tools, and took care to return with them at an hour when I knew I should have