I had already had some relations with him, for he had married his daughter to the son of the sister of my brother-in-law, M. de Lauzun. I had done him some little service, and had therefore every reason to expect he would serve me on this occasion. Judge of my annoyance when upon reaching his house I learned that he had gone almost to the other end of the town, to the Marais, to conduct a suit at law, in which Monsieur and Madame de Lauzun were concerned, respecting an estate at Rondon they claimed!
The porter seeing me so vexed at being obliged to journey so far in search of Fontanieu, said, that if I would go and speak to Madame Fontanieu, he would see if his master was not still in the neighbourhood, at a place he intended to visit before going to the Marais. I acted upon this suggestion and went to Madame Fontanieu, whom I found alone. I was forced to talk to her of the suit of Monsieur and Madame de Lauzun, which I pretended was the business I came upon, and cruelly did I rack my brains to say enough to keep up the conversation. When Fontanieu arrived, for he was soon found, fortunately, I was thrown into another embarrassment, for I had all the pains in the world to get away from Madame Fontanieu, who, aided by her husband, begged me not to take the trouble to descend but to discuss the subject where I was as she was as well informed upon the case as he, I thought once or twice I should never escape her. At last, however, I led away Fontanieu, by dint of compliments to his wife, in which I expressed my unwillingness to weary her with this affair.
When Fontanieu and I were alone down in his cabinet, I remained some moments talking to him upon the same subject, to allow the valets who had opened the doors for us time to retire. Then, to his great astonishment, I went outside to see if there were no listeners, and carefully closed the doors. After this I said to Fontanieu that I had not come concerning the affair of Madame de Lauzun, but upon another very different, which demanded all his industry, a secrecy proof against every trial, and which M. le Duc d’Orleans had charged me to communicate to him; but that before explaining myself he must know whether his Royal Highness could certainly count upon him.