would fight with it regardless of the wishes of any other—because that group happened to be composed of instinct-driven members of the young-warrior group.

But he was still within the half-mile-high fence of the grid's steel structure. He strapped himself in his seat. The ship rose and rose. It came level with the top of the colony's one defense against space. The peculiar, corrugated copper lip of that structure, formed into the force-field guide which made it usable, swung toward him. He raised the rocket-thrust and shot skyward.

A deafening bellow came from the speakers:

"Yeah! Go on out and join the old folk! We'll get you!"

Obviously, the voice was from the ground below him. The ship flashed upward. Calhoun rasped into the spacephone mike, himself:

"Med ship calling fleet! Call back that missile! I've got the antibody structure! This is no time for fighting! Call your missile back!"

Derisive laughter—again from the ground. Then the heavy, growling voice of an older man.

"Keep out of the way, Med ship! These young fools are destroying themselves. Now they're destroying our grandchildren! If we hadn't been soft-hearted before—if we'd fought them from the beginning—the little ones wouldn't be dying now! Keep out of the way! If you can help us, it'll be after we've won the war!"

The sky turned purple, at the height Calhoun had reached. It went black. The sun Canis flamed and flared against a background of ebony space, sprinkled with a thousand million colored stars. The Med ship continued to rise.

Calhoun felt singularly and helplessly alone. Below him the sunlit surface of a world spread out, its edge already curving, cloud-masses in its atmosphere veiling the details of mountains and green-clad plains. There was the blue of ocean, creeping in. The city of the landing-grid was tiny, now. The brown of ploughed fields was no longer divided into rectangular shapes. It was a mere brownish haze between the colorings of as-yet-untouched virgin areas. The colonists of Canis III had so far made only a part of the new world their own. Many times more remained to be turned to human use.

The rear screen showed something coming upward. Masses of stuff, without shape but with terrific velocity. It was inchoate, indefinite stuff. It was plain dirt from the center of the landing-grid's floor, flung upward with the 

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