"Break out a ground force," ordered Maynard. "We're going to take that projector!"


The Terran fire tripled as the ground force moved ponderously across the intervening yards. A salient point was made, and the sides began to widen. Back and forth the individual sorties went, and as men and machines went up in flaring puffs of fire, the salient moved forward toward the projector.

Inside the disperser, the combined Martians and Mephistans worked furiously, though they seemed oblivious to their danger. No signals would enter this barrier, and no living thing could step outside and hope to re-enter.

They stepped back from the thirty-foot parabola, and one of them thrust down upon a plunger.

Above the parabolic reflector, a thick haze formed. A torpedo succeeded in passing the coupled AutoMacs and raced inside of the disperser and into the haze. It exploded, and its energy added to the forming vortex.

The haze thickened, became toroidal, and spread out. Up from a dun color it went, into cherry-red incandescence. Up through the red past yellow into blue and then into flaming white went the color-temperature. Like a close-knit toroid of flaming, white-hot metal, it poised above the projector, moved slightly, and then raced upwards. It passed the disperser, and the screen went up in a flare of white.

Into the sky above Mephisto went the toroid, and below it, Terrans swarmed over the projector, fought off the remaining enemy, and held the projector as their objective. The last floods of resistance died as the toroid went into the far sky above.

"Orionad!" bellowed Maynard. His ship lifted, swooped over him, and lifted him on a tractor. Upward they raced, catching the slow-moving vortex.

Turret-mounted AutoMacs vomited energy into the vortex—and back-thrusting power burned out the feedlines. Torpedoes entered the flaming mass and just disappeared. Tractor beams slid from the coruscating surface and pressor beams found nothing against which to push. A sub-ship plunged against the vortex. It was stripped of its barrier and it floated down, inert, and started the long fall to the hard ground below.