'The Secret Agent: A Simple Tale' is a classic novel by Joseph Conrad. It revolves around a man named Mr. Verloc who lives a double life as both a simple shop owner and a secret agent for an unnamed country in London. The story focuses particularly on an anarchist plot to detonate a bomb at the Greenwich Observatory. The story explores themes of politics, betrayal and the impacts of terrorism. It provides a deep and thought-provoking reflection on societal changes in the late 19th century.