The Secret Agent: A Simple Tale

is a novel by Joseph Conrad, first published in 1907.

The story is set in London in 1886 and deals with Mr. Adolf Verloc and his work as a spy for an unnamed country (presumably Russia).

The Secret Agent is one of Conrad's later political novels in which he moved away from his former tales of seafaring.

The novel is dedicated to H. G. Wells and deals broadly with anarchism, espionage, and terrorism.

Because of its terrorism theme, it was one of the three works of literature most cited in the American media two weeks after the September 11 attacks.