Novella by Joseph Conrad, first published in 1902 with the story "Youth" and thereafter published separately. The story reflects the physical and psychological shock Conrad himself experienced in 1890, when he worked briefly in the Belgian Congo. The narrator, Marlow, describes a journey he took on an African river. Assigned by an ivory company to take command of a cargo boat stranded in the interior, Marlow makes his way through the treacherous forest, witnessing the brutalization of the natives by white traders and hearing tantalizing stories of a Mr. Kurtz, the company's most successful representative. He reaches Kurtz's compound in a remote outpost only to see a row of human heads mounted on poles. In this alien context, unbound by the strictures of his own culture, Kurtz has exchanged his soul for a bloody sovereignty, but a mortal illness is bringing his reign of terror to a close. As Marlow transports him downriver, Kurtz delivers an arrogant and empty explanation of his deeds as a visionary quest. To the narrator Kurtz's dying words, "The horror! The horror!" represent despair at the encounter with human depravity--the heart of darkness.