"If those things are planes," he muttered, and there was a note of exultation in his voice, "then Michaelson, and his talk of space-time faults, is nuts."

What Higgins meant was, that if the two dots were planes, then what had happened to the Idaho had been an illusion of some kind. Planes could exist only in a modern world. They were one of mankind's most recent inventions.

The stubby-winged scouting plane from the ship was easily visible now. It was driving hell for leather for the Idaho. Craig watched it with growing apprehension.

"That pilot is running away from something," he said.

"Impossible!" Higgins snapped.

The plane swept nearer. It was flying at a low altitude. The two dots were hard on its heels. They were overtaking it. And—they were no longer dots.

"Planes!" Higgins shouted.


Craig kept silent. They were planes all right, but—He saw something lance out from one of them. The scouting plane leaped upward in a screaming climb. Something reached toward it again, touched it. It began to lose altitude. It was still coming toward the Idaho but it was on a long slant.

"It's being attacked!" Higgins shouted, pain in his voice.