vortex in our wake. On the "morning" of the third day the ships at the apex of Quadrant One ran into a flight of Rebel scouts. There was a brief flurry of action, the Rebels were englobed, a couple of cruisers drove in, latched onto the helplessly straining Rebel scouts and dragged them into threespace. The Rebs kept broadcasting right up to the end—after which they surrendered before the cruisers could annihilate them. Smart boys. But the Rebels were warned. We couldn't catch all their scouts and the disturbance our Line was making in Cth would register on any detector within twenty parsecs. So they would be waiting to meet us. But that was to be expected. There is no such thing as surprise in a major action. We went on until we began to run into major opposition. Half a dozen scouts were caught in englobements at half a dozen different places along the periphery as they came in contact with the Rebels' covering forces. And that was that. The advance halted waiting for the Line to come up, and a host of small actions took place as the forward screening forces collided. Chase was in the control chair, hanging in the blackness of the infra band on the edge of normal space. But we weren't flicking in and out of threespace like some of the others. We had a probe out and the main buffeting was taken by the duralloy tube with its tiny converter at its bulbous tip. With consummate pilotage Chase was holding us in infra. It was a queasy sensation, hanging halfway between normalcy and chaos, and I had to admire his skill. The infra band was black as ink and hot as the hinges of hell—and since the edges of threespace and Cth are not as knife sharp as they are further up in the Cth components, we bucked and shuddered on the border, but avoided the bone-crushing slams and gut-wrenching twists that less skillful skippers were giving their ships as they flicked back and forth between threespace and Cth. Our scouting line must have been a peculiar sight to a threespace observer with the thousand or so scouts flickering in and out of sight across a huge hemisphere of space. And then we saw them. Our probe picked up the flicker of enemy scouts. "Action imminent," Chase said drily. "Stand by." I clapped the other control helmet over my head and dropped into the Exec's chair. A quick check showed the crew at their stations, the torpedo hatches clear, the antiradiation shields up and the ship in fighting trim. I stole a quick glance at Chase. Sweat stood out on his gray forehead. His lips