Fifty Days to Doom

The galaxy is at war, a war between the oxygen-breathing Terran Federation of worlds and the Ginzoes, chlorine-breathing aliens. Neither side dare attack the others' habitable worlds for fear of reprisals: the war has become a matter of spaceships firing on each other as they emerge from hyperspace.An Earth ship is captured in battle by the Ginzoes, and its surviving crew learn that the aliens hav...