"Heart of Darkness" is a classic novel by the English writer Joseph Conrad, which tells the story of sea captain Marlowe, who goes to the distant and mysterious Congo in search of a mysterious white elephant trader, Kurtz. During his journey, Marlowe confronts the evil and cruelty that exists in human hearts, discovering the darkness that lies hidden in the depths of every human soul. The novel "Heart of Darkness" is an exploration of the nature of evil and morality, which leaves the reader thoughtful and impressed.