"Uh-huh, same time you were." "Well, I'll be damned," Gotch breathed softly. There was a note of respect in his voice. The General was silent for a moment. "But the Caspian's hot now." "Meaning?" "Warheads--with the name Arzachel writ large across the nose cones." He eyed Gotch obliquely. "If we secure Arzachel first, they'll blow it off the face of the moon." They looked at each other silently. Outside a jet engine roared to life. * * * * * The moon filled the sky. It was gigantic, breath-taking, a monstrous sphere of cratered rock moving in the eternal silence of space with ghostly-radiance, heedless that a minute mote bearing alien life had entered its gravitational field. It moved in majesty along its orbit some 2,300 miles every hour, alternately approaching to within 222,000 miles of its Earth Mother, retreating to over 252,000 miles measuring its strides by some strange cosmic clock. The Apennines, a rugged mountain range jutting 20,000 feet above the planet's surface, was clearly visible. It rose near the Crater Eratosthenes, running northwest some 200 miles to form the southwest boundary of Mare Imbrium. The towering Leibnitz and Dorfel Mountains were visible near the edge of the disc. South along the terminator, the border between night and day, lay Ptolemaeus, Alphons, and Arzachel. Crag and Prochaska studied its surface, picking out the flat areas which early astronomers had mistaken for seas and which still bore the names of seas. The giant enclosure Clavius, the lagoon-like Plato and ash-strewn Copernicus held their attention. Crag studied the north-south line along which Arzachel lay, wondering again if they could seek out such a relatively small area in the jumbled, broken, twisted land beneath them. At some 210,000 miles from earth the Aztec had decelerated to a little over 300 miles per hour. Shortly after entering the moon's gravisphere it began to accelerate again. Crag studied the enemy rocket riding astern. It would be almost abreast them in short time, off to one side of the silver drone. It, too, was accelerating. "Going to be nip and tuck," he told Prochaska. The Chief nodded. "Don't like the looks of that stinker," he grunted.