"The Mystery of Dr. Fu Manchu" is a novel written by Sax Rohmer and first published in 1913. It introduces the character of Dr. Fu Manchu, a brilliant but villainous Chinese mastermind who seeks to dominate the world. The story follows Nayland Smith, a British agent, as he attempts to thwart Fu Manchu's nefarious plans. The novel is notable for its portrayal of Eastern mysticism and the themes of imperialism and racial tension prevalent in early 20th-century literature. It has sparked controversy for its stereotypical representation of Asian characters and has influenced various adaptations in film and television.