The girl Edme Huet, a woman of Brescia, deposed that Sainte-Croix went to see the marquise every day, and that in a box belonging to that lady she had seen two little packets containing sublimate in powder and in paste: she recognised these, because she was an apothecary’s daughter. She added that one day Madame de Brinvilliers, after a dinner party, in a merry mood, said, showing her a little box, “Here is vengeance on one’s enemies: this box is small, but holds plenty of successsions!” That she gave back the box into her hands, but soon changing from her sprightly mood, she cried, “Good heavens, what have I said? Tell nobody.” That Lambert, clerk at the palace, told her he had brought the packets to Madame from Sainte-Croix; that Lachaussee often went to see her; and that she herself, not being paid ten pistoles which the marquise owed her, went to complain to Sainte-Croix, threatening to tell the lieutenant what she had seen; and accordingly the ten pistoles were paid; further, that the marquise and Sainte-Croix always kept poison about them, to make use of, in case of being arrested.
Laurent Perrette, living with Glazer, said that he had often seen a lady call on his mistress with Sainte-Croix; that the footman told him she was the Marquise de Brinvilliers; that he would wager his head on it that they came to Glazer’s to make poison; that when they came they used to leave their carriage at the Foire Saint-Germain.