Curiously enough, his occupation in Geneva, in the rapture of his newly-found happiness, was to write the "Duchesse de Langeais," by which he intended to revenge himself on Madame de Castries, though he could not help, in his book, making her turn to him at last, when it was too late. The wound was still smarting. He detests and despises her, he says; and the only words of spitefulness recorded in his generous, large-minded life, are when he mentions, with pretended pity, that owing to ill-health she has completely lost her beauty. In spite of this outburst, however, we find that he came forward later on, and helped her with much energy when she was in difficulties. He never had the satisfaction of knowing whether she were punished or not; as when he showed her the book before it was published, with the ostensible reason of wishing her to disarm the Faubourg St. Germain, which is severely criticised in its pages, she professed much admiration for it. Meanwhile, Madame de Berny was beginning the slow process of dying; and Balzac speaks constantly with trouble of her failing health, and of the heart disease from which she suffered, and which, with her usual unselfishness, she tried to conceal from him. She was too ill now to correct his proofs, and her family circumstances were, as we have already seen, very miserable; so that her life was closing sadly. In January, 1835, Balzac spent eight days with her at La Boulonniere, near Nemours, working hard all the time; and was horrified to find her so ill, that even the pleasure of reading his books brought on severe heart attacks.