His next action would be astonishing to any one unacquainted with his extraordinary recklessness. In October 1837 he gave up the rooms at the Rue Cassini, which he had kept during the time of his residence at Passy; and in order to escape what he termed "an atrocious law" on the subject of his abhorrence the Garde Nationale, he bought a piece of land in the Ville d'Avray, at Sevres, on which he began to build a house, planned by himself. This soon acquired celebrity as "Les Jardies," and gave much amusement to the Parisians, who were never tired of inventing stories about Balzac's villa. In March, 1838, before he settled in his new abode, he started on a journey to Sardinia to investigate matters himself about the mines. It was a year since the Genoese merchant had promised to send him a specimen of the dross, and as nothing had yet arrived, he was beginning to feel anxious. The object of his journey was kept absolutely secret; owing to the dangers of the post even Madame Hanska being told only that "it is neither a marriage, nor anything adventurous, foolish, frivolous, or imprudent. It is a serious and scientific affair, about which it is impossible for me to tell you a word, because I am bound to the most absolute secrecy."[*] He had to borrow from his mother and from a cousin, and to pawn his jewellery to obtain money for his expedition. On the way he stayed with the Carrauds at Frapesle, where he was ill for a few days; and he went from there to pay his "comrade" George Sand a three days' visit at Nohant. He found her in man's attire, smoking a "houka," very sad, and working enormously; and he and she had long talks, lasting from five in the evening till five in the morning, and ranging over manners, morals, love affairs, and literature. She approved of "La Premiere Demoiselle," a play planned in February, 1837, which Madame Hanska had discouraged because she did not like the plot; and Balzac determined to work at it seriously now that "Cesar Birotteau" was finished. This brilliant picture of the Parisian _bourgeoisie_ had been published in December, 1837, under the title of "Histoire de la Grandeur et de la decadence de Cesar Birotteau." Since then, Balzac had produced nothing new in book form, though he was writing "La Maison de Nucingen" for _La Presse_, and working at "Massimilla Doni," and at the second part of "Illusions Perdues." He was also preparing to bring out a "Balzac Illustre," which was to be a complete edition of his works with pictures; but of this only one volume, "La Peau de Chagrin," was ever published. [*] "Lettres a l'Etrangere."