The Barsac Mission (French: L'Étonnante Aventure de la Mission Barsac) is a novel attributed to Jules Verne and written (with inspiration from two unfinished Verne manuscripts) by his son Michel Verne.

[1] An English adaptation by I. O. Evans was published in 1960 in two volumes, Into the Niger Bend and The City in the Sahara.

[2] It includes a hidden city, called in English "Blackland", in the Sahara Desert.

Because of Jules Vernes's interest in Esperanto,[3][4] the original draft, by himself, called "Voyage d'étude", contained references to the language.

[5] When his son finished the work, he removed those references.