Death Was His Servant, World Mastery His Goal—The Story Of The Most Incredible Evil Genius Of All Time
From the back cover:
“That was Fu Manchu, the greatest criminal genius the world has ever known. Subtly, his world-wide organization had grown and spread, its tentacles reaching into the very governments and police forces of the West. Only one man knew the full danger of Fu Manchu’s plan – Denis Nayland Smith. On him alone depended the fate of Western civilization – and Fun Manchu had marked him for extinction!”