The Hand of Fu-Manchu

The Hand of Fu-Manchu by Sax Rohmer is about the devil doctor in London, and a secret society who has murdered innocent civilians. Excerpt: «Who's there?» I called sharply. I turned and looked across the room. The window had been widely opened when I entered, and a faint fog haze hung in the apartment, seeming to veil the light of the shaded lamp. I watched the closed door intently, expecting every moment to see the knob turn. But nothing happened. «Who's there?» I cried again, and, crossing the room, I threw open the door."