On page 13 of THE VISITOR FROM PLANET X, a review of Tom Swift's exploits is given: "Conquering outer space, probing the ocean's secrets, drilling to the earth's core - these were only a few of Tom Swift's exciting exploits... In his first adventure, Tom, in his Flying Lab, had gone to South America to fend off a gang of rebels seeking a valuable radioactive ore deposit." In each adventure, a new invention provides the framework for an exciting story.