The day was coming, not too many years away, when the first of the aliens would strike the Outer worlds. Then we would unite—on the League's terms if need be—to crush the invaders and establish mankind as the supreme race in the galaxy.

But this wasn't important right now. Right now I was the Executive Officer of a scout ship commanded by a man I didn't trust. He smelled too much like a stinking coward. I shook my head. Having Chase running the ship was like putting a moron in a jet car on one of the superhighways—and then sabotaging the automatics. Just one fearful mistake and a whole squadron could be loused up. But Chase was the commander—the ultimate authority on this ship. All I could do was pray that things were going to come out all right.

We moved out in the lower red. Battles weren't fought in Cth. There was no way to locate a unit at firing range in that monochromatic madness. Normal physical laws simply didn't apply. A ship had to come out into threespace to do any damage. All Cth was was a convenient road to the battlefront.

With one exception.

By hanging in the infra band, on the ragged edge of threespace, a scout ship could remain concealed until a critical moment, breakout into threespace—discharge her weapons—and flick back into Cth before an enemy could get a fix on her. Scouts, with their high capacity converters, could perform this maneuver, but the ponderous battlewagons and cruisers with their tremendous weight of armor, screens, and munitions couldn't maneuver like this. They simply didn't have the agility. Yet only they had the ability to penetrate defensive screens and kill the Rebel heavies. So space battle was conducted on the classic pattern—the Lines slugging it out at medium range while the screen of scouts buzzed around and through the battle trying to add their weight of metal against some overstrained enemy and ensure his destruction. A major battle could go on for days—and it often did. In the Fifty Suns action the battle had lasted nearly two weeks subjective before we withdrew to lick our wounds.

For nearly a day we ran into nothing, and such are the distances that separate units of a fleet, we had the impression that we were alone. We moved quietly, detectors out, scanning the area for a light-day around as we moved forward at less than one Lume through Cth. More would have been fatal for had we been forced to resort to a quick breakout to avoid enemy action, and if we were travelling above one Lume when we hit threespace, we'd simply disappear, leaving a small spatial 

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