A vampire is loose in the streets of Manhattan, and it's dropped off a corpse for a calling card at Doc Savage's doorstep. The Man of Bronze and his crew follow the trail of blood and murder to a remote Atlantic island where they uncover a million dollars in gold, a stolen Nazi submarine, and a shipload of danger, death, and fiery fist-crunching action!

This is one of the strange ones. Strange for Doc. The "menace" is rivetting, really keeps the pages turning. But the revelation is blah! And I mean blah! Shame, too because up until the climax, the tension is very strong and mysterious. I recommend the first 80 pages of this one, then close the book and imagine your own ending. You'll thank me.