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. Verlac, (a Russian spy who is also working for the police) is ostensibly a member of an anarchist group in Soho. His masters instruct him to discredit to anarchists in some spectacular way. The upshot of the affair is that his evil plan goes horribly wrong and the repercussions are dramatically different from those that Verloc intended.