In the Pentagon and the Kremlin, leaders were grim with the awareness that all military secrets would be exposed. … The overlords of the underworld realized the children could smash their most profitable rackets. … And even ordinary citizens shuddered at the prospect of their shabby sins being found out.
So four small children came to be hated by the entire world. A whole civilization wanted them dead.
Where was the ship from, and what was the quest of the strange visitors—armed with a terrifying paralysis ray—who had come to call on earth …
Plague, mystery, and menace marked the missions—and the human enemies they faced on each world were just as virulent as the microscopic ones.