When a mummy arrives at Doc Savage's New York headquarters wearing the clothes of his missing assistant, engineer Renny Renwick, Doc, Monk, and Ham rush to Singapore where they get on the trail of a swashbuckling pirate who calls himself the Scourge of the South China Sea, in whose hands a piece of the infernal Buddha has fallen. The trail leads to Pirate Island, the fate of Renny, and a mysterious box containing a terrible, unstoppable power. But...