Staggering under the onrush of such a fierce storm of energy, the old universe would start contracting. Its mass would build up, faster and faster, as the fifth-dimensional energy, riding on the beams of the disintegrator guns, hurled itself into its space-time frame.

Gary wiped his brow with the back of his hand.

That was the way Caroline and the Engineer had figured it out. He hoped that it would work. And yet it seemed impossible that a tiny ship, two tiny guns manned by the puny members of the human race, could utterly annihilate a universe, an unimaginably massive space-time matrix.

Yet he had seen the beam of a tiny flashlight, crystalizing the energy of the eternal dimension, blast out of existence, in the twinkling of an eye, a mighty fleet of warships protected by heavy screens, armored against vicious bombs, impregnable to anything… to anything except the flashlight in the hands of a wisp of a girl.

Remembering that, it was easier to believe that the disintegrators, crystalizing a much vaster field of energy, might accomplish the destruction of a universe. For it wasn't the guns themselves that would do the job, but the direction of all the energy into the other universe, energy rising on the million-mile front set up by the fanning guns.

"The field is building up," said Caroline. "Be ready." Gary grinned at her.

"We'll fire when we see the whites of their eyes," he said.

He racked his brain for the origin of that sentence. Something out of history. Something out of the dim old legends of the past. A folk tale of some mighty battle of the ancient days.

He shrugged his shoulders. The story, whatever it might be, probably wasn't true, anyhow. So few of the ancient legends were. Just another story to be told of a black night in the chimney corner when the wind howled around the eaves and the rain dripped on the roof.

His eyes went to the port again, stared out into the misty blue, the blue that seemed to throb with vibrant life.