The Return of Dr. Fu-Manchu

The Return of Dr. Fu-Manchu (1916) (UK Title: The Devil Doctor)
As the sun begins to set on the British Empire, an agent of Eastern "evil" haunts Cairo, London and points between. In this second Fu-Manchu novel by English writer Sax Rohmer, aka Henry Sarsfield Ward (1883-1959), the "devil doctor" leads our heroes on a chase through exotic and dangerous worlds.