Sir Denis Nayland Smith and Dr. Flinders Petrie are once again on the trail of Fu Manchu, the immortal criminal mastermind who possesses arcane secrets of the ancient past and absolute mastery of modern science! This time, Nayland Smith has tracked Fu Manchu to California, in search of a scroll owned by Dr. James Parker. When Parker mysteriously disappears, his son Allan is compelled to join in the hunt. Attacked by the deadly assassins of the Si Fan at every turn, can Sir Nayland Smith, Dr. Petrie, and Allan Parker stop Fu Manchu from obtaining the Sceptre of Genghis Khan and becoming the tyrannical ruler of all Asia?
NOTE: Chapter 6 is missing