Jules Verne magazine. (The manuscript, believed lost for some time after Verne's death, was finally published in 1994.) The relationship between publisher and writer changed significantly around 1869, when Verne and Hetzel were brought into conflict over the manuscript for "Twenty Thousand Leagues Under the Sea". Verne had initially conceived of the submariner Captain Nemo as a Polish scientist whose acts of vengeance were directed against the Russians who had killed his family during the January uprising. Hetzel, not wanting to alienate the lucrative Russian market for Verne's books, demanded that Nemo be made an enemy of the slave trade, a situation
Jules Verne "Voyages extraordinaires" series continued for several years afterwards at the same rate of two volumes a year. It was later discovered that Michel Verne had made extensive changes in these stories, and the original versions were eventually published at the end of the 20th century by the Jules Verne Society (Société Jules Verne). In 1919, Michel Verne published The Barsac Mission (), which original drafts contained references to Esperanto, language about which his father had great interest. In 1989, Verne's great-grandson discovered his ancestor's as yet unpublished novel "Paris in the Twentieth Century" which was subsequently published in 1994. Verne's