Grisly strangulations in London alert Nayland Smith of Scotland Yard to the possibility of the fiendish Fu Manchu may not be dead after all, even though Smith witnessed his execution. A killer spray made from Tibetan berries seems to be involved and clues keep leading back to the Thames.—Jeremy Perkins {J-26}
After cheating death, master criminal Dr. Fu Manchu returns with a plot to contaminate the River Thames with a powerful toxin extracted from Tibetan poppies.