Le Casque de Dragon, L'Anneau du Forcat ou La Famille Lebrenn

Popular French novel, first published in 1849, in the original French. Part of the "Mysteries of the People" series. According to Wikipedia: "Joseph Marie Eugène Sue (20 January 1804 – 3 August 1857) was a French novelist… He was strongly affected by the Socialist ideas of the day, and these prompted his most famous works, the "anti-Catholic" novels: Les Mystères de Paris (10 vols., 1842-1843) and Le Juif errant (tr. "The Wandering Jew") (10 vols., 1844-1845), which were among the most popular specimens of the roman-feuilleton.”