The story tells of when Marlow, an Englishman, took a foreign assignment from a Belgian trading company as a ferry-boat captain in Africa. Although Conrad does not give the name of the river, at the time, Congo Free State, the location of the large and important Congo River was a private colony of Belgium's King Leopold II. Marlow is employed to transport ivory downriver. However, his more pressing assignment is to return Kurtz, another ivory trader, to civilization, in a cover-up. Kurtz has a reputation throughout the region. "Wikipedia.org"