In the second Doc Savage adventure, Python Isle, a long-lost pioneer flyer returns to civilization accompanied by an exotic woman who speaks in a lost tongue. From his towering skyscraper headquarters in New York, through a dangerous Zeppelin journey to Cape Town, climaxing on a serpent-haunted island in the forbidden reaches of the Indian Ocean, Doc Savage and his iron comrades race to untangle a weird puzzle so deep that the only clues can be found in the Bible!