In this tale of colonial exploitation, the narrator, Marlowe, journeys deep into the heart of Africa. But there he encounters Kurtz, an idealist apparently crazed and depraved by his power over the natives, and the meeting prompts Marlowe to reflect on the darkness at the heart of all men.
This is the only novel that Conrad set in London, and it communicates a profoundly ironic view of human affairs. The story is woven around an attack on the Greenwich Observatory in 1894. Verloc, a Russian spy who is also working for the police, is ostensibly a member of an anarchist group in Soho.