Madame de Brinvilliers understood that the box was not to be given up, and made preparations for flight. 'Delamarre, her attorney, repaired to Picpus at ten o'clock at night and carried off her principal furniture, which was even thrown hastily out of the windows.' The marchioness, however, sent for Cluet and Creuillebois to come to Picpus. She changed the line of her defence, and told Creuillebois that 'Sainte-Croix was clever enough to have forged the letters, but that she would find a way out, and had good friends.' To Madame de Sainte-Croix, who also went to Picpus, she said that she had nothing to do with the box, that it could only contain trifles, that she had not seen Sainte-Croix for a long time, that these were forged letters, and that she had a complete justification. She went on, in order to spread it abroad that her interests were connected with those of Pennautier: 'If it trickles on me, it will rain on Pennautier.' She said to the wife of a Châtelet clerk named Fausset, who spoke to her of the rumours of poisoning that were already going about. 'There is nothing in it: it will blow over; there is a man accused with me who will give four or six thousand livres to arrange matters,' adding that 'he was not of high rank, but was very rich.' The seals placed on the box were raised by the civil lieutenant on August 11. Madame de Brinvilliers was represented by her attorney, who made the following declaration: 'That if there was found a promise signed by Lady Brinvilliers for the sum of 30,000 livres, it was a document obtained from her by fraud, against which, in case the signature proved genuine, she intended to appeal, in order to have it declared null and void.' The liquids and the powder contained in the chest were tested on animals, death being the result. Experts decided that they contained poison, but could not determine its nature. The general belief was that it was arsenic. Madame de Brinvilliers and Pennautier were soon the engrossing topic of conversation in Paris. Fantastic rumours circulated about the poisons found in the box, of which Madame de Sévigné made herself the sedulous echo.