"The Secret Agent" is a novel written by Joseph Conrad, first published in 1907. The story takes place in London in the late 19th century and follows the life of Mr. Verloc, a middle-aged man who runs a small pornographic shop and also works as a spy for a foreign government. Verloc is tasked with carrying out a terrorist attack, but his plans go awry and result in a tragic outcome. The novel explores themes of political extremism, anarchism, espionage, and betrayal. Conrad's writing style is known for its psychological complexity, intricate plot structure, and use of symbolism. "The Secret Agent" has been highly regarded for its exploration of the darker aspects of human nature and its commentary on the political and social climate of the time. The book has remained a popular and influential work of literature, and has been adapted into several films and television series.