Who—or what—is Quon? All of Asia knows him as a devil in human form, a twisted, armless monster with a face of imperial jade. Long dead, Quon has returned from the grave to spread his fatal Jade Fever and subjugate mankind. From San Francisco's Chinatown, across the vast Pacific to the spidery jungle ruins of Cambodia, Doc Savage and his resourceful crew battle a seemingly-unbeatable foe whose deadly reach knows no barriers, and whose evil ambitions know no bounds.