The Barsac Mission () is a novel attributed to Jules Verne and written (with inspiration from two unfinished Verne manuscripts) by his son Michel Verne. First serialized in 1914, it was published in book form by Hachette in 1919. An English adaptation by I. O. Evans was published in 1960 in two volumes, Into the Niger Bend and The City in the Sahara. It includes a hidden city, called in English "Blackland", in the Sahara Desert.
Because of Jules Vernes's interest in Esperanto,Delcourt, M. - Amouroux, J. (1987): Jules Verne kaj la Internacia Lingvo. - La Brita Esperantisto, vol. 83, number 878, pages 300-301. London. Republished from Revue Française d'Esperanto, nov.-dec., 1977Haszpra O. (1999): Jules Verne pri la lingvo Esperanto - in hungarian: - Scienca Revuo, 3, 35-38. Niederglat the original draft, by himself, called "Voyage d'étude", contained references to the language.about that: Abel Montagut, Jules Verne kaj esperanto (la lasta romano), Beletra Almanako, number 5, June 2009, New York, pages 78-95. When his son finished the work, he removed those references.
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