Uneasy to know what Du Mont wished to communicate with so much mystery, I gently went towards the arbours where, without being seen, I looked through one of the openings until I saw him appear. He slipped in by the corner of the chapel, and I went towards him. As he joined me he begged me to return towards the river, so as to be still more out of the way; and then we set ourselves against the thickest palisades, as far as possible from all openings, so as to be still more concealed. All this surprised and frightened me: I was still more so when I learned what was the matter.
Du Mont then told me, on condition that I promised not to show that I knew it, and not to make use of my knowledge in any way without his consent, that two days after the marriage of the Duc de Berry, having entered towards the end of the morning the cabinet of Monseigneur, he found him alone, looking very serious. He followed Monseigneur, through the gardens alone, until he entered by the window the apartments of the Princesse de Conti, who was also alone. As he entered Monseigneur said with an air not natural to him, and very inflamed—as if by way of interrogation—that she “sat very quietly there.” This frightened her so, that she asked if there was any news from Flanders, and what had happened. Monseigneur answered, in a tone of great annoyance, that there was no news except that the Duc de Saint-Simon had said, that now that the marriage of the Duc de Berry was brought about, it would be proper to drive away Madame la Duchesse and the Princesse de Conti, after which it would be easy to govern “the great imbecile,” meaning himself. This was why he thought she ought not to be so much at her ease. Then, suddenly, as if lashing his sides to get into a greater rage, he spoke in a way such a speech would have deserved, added menaces, said that he would have the Duc de Bourgogne to fear me, to put me aside, and separate himself entirely from me. This sort of soliloquy lasted a long time, and I was not told what the Princesse de Conti said to it; but from the silence of Du Mont, her annoyance at the marriage, I had brought about, and other reasons, it seems to me unlikely that she tried to soften Monseigneur.
Du Mont begged me not, for a long time at least, to show that I knew what had taken place, and to behave with the utmost prudence. Then he fled away by the path he had come by, fearing to be seen. I remained walking up and down in the arbour all the time, reflecting on the wickedness of my enemies, and the gross credulity of Monseigneur. Then I ran away, and escaped to Madame de Saint-Simon, who, as astonished and frightened as I, said not a word of the communication I had received.