_August 15._ Certainly this is the way in which my poor cousin was possessed and swayed, when she came to borrow five thousand francs of me. She was under the power of a strange will which had entered into her, like another soul, like another parasitic and ruling soul. Is the world coming to an end? But who is he, this invisible being that rules me. This unknowable being, this rover of a supernatural race? Invisible beings exist, then! How is it then that since the beginning of the world they have never manifested themselves in such a manner precisely as they do to me? I have never read anything which resembles what goes on in my house. Oh! If I could only leave it, if I could only go away and flee, so as never to return. I should be saved, but I cannot. _August 16._ I managed to escape to-day for two hours, like a prisoner who finds the door of his dungeon accidentally open. I suddenly felt that I was free and that he was far away, and so I gave orders to put the horses in as quickly as possible, and I drove to Rouen. Oh! How delightful to be able to say to a man who obeyed you: "Go to Rouen!" I made him pull up before the library, and I begged them to lend me Dr. Herrmann Herestauss's treatise on the unknown inhabitants of the ancient and modern world. Then, as I was getting into my carriage, I intended to say: "To the railway station!" but instead of this I shouted,--I did not say, but I shouted--in such a loud voice that all the passers-by turned round: "Home!" and I fell back onto the cushion of my carriage, overcome by mental agony. He had found me out and regained possession of me. _August 17._ Oh! What a night! what a night! And yet it seems to me that I ought to rejoice. I read until one o'clock in the morning! Herestauss, Doctor of Philosophy and Theogony, wrote the history and the manifestations of all those invisible beings which hover around man, or of whom he dreams. He describes their origin, their domains, their power; but none of them resembles the one which haunts me. One might say that man, ever since he has thought, has had a foreboding of, and feared a new being, stronger than himself, his successor in this world, and that, feeling him near, and not being able to foretell the nature of that master, he has, in his terror, created the whole race of hidden beings, of vague phantoms born of fear. Having, therefore, read until one o'clock in the morning, I went and sat down at the open window, in order to cool my forehead and my thoughts, in the calm night air. It was very pleasant and warm! How I should have enjoyed such a night formerly!