At that second I had not seen the little discs, but I saw them now! They came sailing in a line, ten foot, flat, circular discs of a dark metal; they gleamed reddish where the sunlight painted them. They had been fastened outside the enemy vessel and in our passing they had been discharged. They sailed now like whirling plates. There seemed perhaps twenty of them, heading in a curve toward us. Grantline's voice came again from the deck audiphone. "Missed them, Gregg. That's what I thought but at least two of our bolts must have struck. But it didn't hurt them." "No," I replied. "It seemed not. They must have a defensive barrage." Drac was pulling at me. "Those things out there, those discs...." Grantline demanded, "Yes, what in hell are they?" We could not tell. It seemed that their curve would take them behind our stern. Grantline added: "Will you try going back after that ship?" "Yes." But I did not. To the naked eye the enemy ship had already disappeared; but with the 'scopes we saw that it seemed to be turning. I did not attempt to turn us, for we were afraid of those oncoming discs which took all our attention. They passed within five miles astern of us, but in a great curve they swung and now seemed heading across our bow. With what tremendous velocity they had been endowed by their firing mechanisms! Their elliptical curve swung them a mile or so ahead of us. They were circling us like tiny satellites in a narrowing spiral ellipse. Our attraction, the normal gravity of our close bulk, was drawing them to us. The men on the _Cometara's_ deck stood gazing, surprised but not yet alarmed. The lookout calls sounded with routine notification each time the discs passed across our bow and stern. In the helio cubby, Waters was still trying to raise an Earth station. Grantline came running to the control turret. "If those cursed things, should strike us, Gregg!" I had set the gravity-plates into new combinations, turning our course downward, trying to swing us under the plane of the discs' orbit. But they swung downward with us; they were no more than two thousand feet away now. Grantline said, "At the next broadside passing I'll fire at them." Drac looked up from his calculating instruments. "Look! A circular rotation: Horribly swift. But I've caught a picture. Look!" He had a still image of one of the discs. It had saw-teeth at its thin knife-like outer circumference. Whirling at tremendous speed, these saw-toothed metal discs might cut into our dome, or some other part of our ship. At the next round, Grantline fired. The discs reddened a little, but came on unharmed. From the other side, he fired again. Three of the discs seemed to have been caught full. His bolts, sustained for their fullest ten seconds of duration at this close, thousand-foot range, took effect. The three discs seemed to crumble with a puff of queerly-radiant vacuum spark-glows, then were gone. But the others came closing in.