What scenes for a romancer to write! One day, by way of reply to these cries of blood, Sainte-Croix made her swallow poison. It was arsenic; but the pain she felt warned her immediately, and she absorbed great quantities of warm milk and so saved herself. She was ill from the effects for several months. She declared after the death of Sainte-Croix 'that she had done what she could to get the box from him while he was alive, and if she had succeeded, she would afterwards have cut his throat.' Like all criminals, Madame de Brinvilliers was dominated by the unconquerable impulse to lead the conversation continually to the subject of her crimes. She would talk about poisons to any one she met. Her servants found bottles of arsenic in her dressing-room. One day, when very merry--she had taken too much wine--she went up to her room carrying a sort of casket in her hand, and meeting one of her servants told her 'that she had the wherewithal to wreak vengeance on her enemies, and that there were many inheritances in that box'--a terrible phrase which was repeated at her trial and became a catchword; poison was called afterwards 'powder of inheritance.' 'When she came to her senses shortly afterwards the marquise told her servant that she did not know what she was saying when she spoke of inheritances, and that her troubles were sending her out of her mind.' She fancied that she had also betrayed herself before her maid, Mademoiselle de Villeray, and it is possible that in 1673, to secure her silence, she poisoned her too. Little by little she came to reveal her crimes in all their details to Briancourt. In the course of her conversations with him, she displayed no regret at the death of her brothers, whom she despised, but she often wept when speaking of her father. 'On the morning after one of these confidences,' said Briancourt before the judges, 'the Marquise de Brinvilliers rushed into my room like a madwoman, and told me that she much mistrusted me, having confided to me matters of the utmost consequence, in which her life was involved. I told her that I would never speak of the things confided to me, but I begged her, with tears in my eyes, that if she was not satisfied with my conduct she would allow me to return to Paris. The lady replied: "No, no,--if you will only be discreet; I will make your fortune, and I am sure of your discretion." About the same time the lady fetched Sainte-Croix back, and they held long conversations together. He showed me the greatest marks of friendliness, assuring me of his services, and begged me to watch over the little boy, of whom he was fond.' We know by Madame de Brinvilliers' own confession that this little boy was actually Sainte-Croix' child.