THE ORIGINAL SUPERMAN STORIES CONTINUE! Metropolis is under siege by an invisible assailant who is holding the citys water supply for ransom. His price? One hundred million dollars! Can Superman discover the crooks identity and stop him before the city gives in to his demands? Read this tale plus other adventures in which the Man of Steel must battle giants, secret spy rings, organized racketeers, and other criminals to keep Metropolis and its citizens safe. Collects stories published in ACTION COMICS #26-40, SUPERMAN #6-11, NEW YORK WORLD'S FAIR COMICS #2, WORLD'S BEST COMICS #1, and WORLD'S FINEST COMICS #2-3.