Dr. Castaing can hardly have failed to observe this change. He knew Auguste to be reckless and extravagant with his money; he learnt that he had realised another 100,000 francs out of his securities, and that he kept the money locked up in a drawer in his desk. If Auguste's fortune were dissipated by extravagance, or he revoked his will, Castaing stood to lose heavily. As time went on Castaing felt less and less sure that he could place much reliance on the favourable disposition or thrift of Auguste. The latter had fallen in love with a new mistress; he began to entertain expensively; even if he should not change his mind and leave his money away from Castaing, there might very soon be no money to leave. At the end of May, 1823, Castaing consulted a cousin of his, Malassis, a notary's clerk, as to the validity of a will made by a sick man in favour of his medical attendant. He said that he had a patient gravely ill who, not wishing to leave his money to his sister, whom he disliked, intended to leave it to him. Malassis reassured him as to the validity of such a will, and gave him the necessary instructions for preparing it. On May 29 Castaing sent Malassis the will of Auguste Ballet with the following note, "I send you the will of M. Ballets examine it and keep it as his representative." The will was dated December 1, 1822, and made Castaing sole legatee. On the same day that the will was deposited with Malassis, Castaing and Auguste Ballet started to-gether on a little two days' trip into the country. To his friends Auguste seemed in the best of health and spirits; so much so that his housekeeper remarked as he left how well he was looking, and Castaing echoed her remark, saying that he looked like a prince! During the afternoon the two friends visited Saint Germain, then returned to Paris, and at seven o'clock in the evening arrived at the Tete Noire Hotel at Saint Cloud, where they took a double-bedded room, Castaing paying five francs in advance. They spent the following day, Friday, May 30, in walking about the neighbourhood, dined at the hotel at seven, went out again and returned about nine o'clock. Soon after their return Castaing ordered some warmed wine to be sent up to the bedroom. It was taken up by one of the maid-servants. Two glasses were mixed with lemon and sugar which Castaing had brought with him. Both the young men drank of the beverage. Auguste complained that it was sour, and thought that he had put too much lemon in it. He gave his glass to the servant to taste, who also found the drink sour. Shortly after she left the room and went upstairs to the bedside of one of her fellow-servants who was ill. Castaing, for no apparent reason, followed her up and stayed in the room for about five minutes. Auguste spent a bad night, suffering from internal pains, and in the morning his legs were so swollen that he could not put on his boots.