Having given full instructions to the servant, Pierre set out to take a tramcar, intending to alight from it on the Boulevard de Rochechouart, and then climb the height on foot. And on the road, lulled by the gliding motion of the heavy vehicle, he began to think of his brother's past life and connections, with which he was but vaguely, imperfectly, acquainted. It was only at a later date that details of everything came to his knowledge. In 1850 a young professor named Leroi, who had come from Paris to the college of Montauban with the most ardent republican ideas, had there married Agathe Dagnan, the youngest of the five girls of an old Protestant family from the Cevennes. Young Madame Leroi was _enceinte_ when her husband, threatened with arrest for contributing some violent articles to a local newspaper, immediately after the "Coup d'Etat," found himself obliged to seek refuge at Geneva. It was there that the young couple's daughter, Marguerite, a very delicate child, was born in 1852. For seven years, that is until the Amnesty of 1859, the household struggled with poverty, the husband giving but a few ill-paid lessons, and the wife absorbed in the constant care which the child required. Then, after their return to Paris, their ill-luck became even greater. For a long time the ex-professor vainly sought regular employment; it was denied him on account of his opinions, and he had to run about giving lessons in private houses. When he was at last on the point of being received back into the University a supreme blow, an attack of paralysis, fell upon him. He lost the use of both legs. And then came utter misery, every kind of sordid drudgery, the writing of articles for dictionaries, the copying of manuscripts, and even the addressing of newspaper wrappers, on the fruits of which the household barely contrived to live, in a little lodging in the Rue Monsieur-le-Prince.