A thin whining noise came down from aloft. It rose to a piercing shriek, and there was a gigantic crater a half mile from the Wabbly, from which smoke rose lazily. The Wabbly remained motionless. Another whining noise which turned to a shriek.... The explosion was terrific. It was a bit nearer the Wabbly.
"We'll send 'em some more rockets," said the 'copter man.
They went hissing invisibly through the rain. The Wabbly backed cautiously away from the spot where they landed, because they were wholly invisible and they made a sound which those in the Wabbly could not understand. Always, to a savage, the unexplained is dangerous. Modern warfare has reached the same high peak of wisdom. The Wabbly drew off from the sparks because it could not know what made them, and because it had used its power-beam and the bomber had dropped its bombs without stopping or destroying them. It was not conceivable to anybody on either the Wabbly or the bombers aloft that inexplicable things could be especially contrived to confront the Wabbly, unless they were contrived to destroy it.
"They don't know what in hell they're up against," said the 'copter man joyously. "Now lets give 'em fits!"
Rockets went off in swift succession. To the blinded men in the bomber above the clouds it seemed that unexplained mechanisms were springing into action by dozens, all about the Wabbly. They were mechanisms. They were electric mechanisms. They were obviously designed to have some effect on the Wabbly. And the Wabbly had no defense against the unguessed-at effects of unknown weapons except....
Bombs began to rain from the sky. The Wabbly crawled toward the last gap left in the ring of mysterious mechanisms. That closed. Triumphant, singing sparks sang viciously in the amplifiers. Nothing was visible. Nothing! Perhaps that was what precipitated panic. The bombers rained down their deadly missiles. And somebody forgot the exact length of time it takes a bomb to drop eight miles....
Sergeant Walpole and the 'copter man were flat on the ground with their hands to their ears. The ground bucked and smote them. The unthinkable violence of the hexynitrate explosions tore at their nerves, even at their sanity. And then there was an explosion with a subtle difference in its sound. Sergeant Walpole looked up, his head throbbing, his eyes watering, dizzy and dazed, and bleeding at the nose and ears.
Then he bumped into the 'copter man, shuddering on the ground. He did it deliberately. There was a last crashing sound, and some of the blasted earth spattered on them. But then the 'copter man looked where Sergeant Walpole pointed dizzily.
The Wabbly was careened crazily on one side. One of its treads was uncoiling slowly from its frame. Its stern was blown in. Someone had forgotten how long it takes a bomb to drop eight miles, and the Wabbly had crawled under one. More, from the racked-open stern of the Wabbly there was coming a roaring, spitting cloud of gas. The Wabbly's storage-tanks of gas had been set off. Inside, it would be a shambles. Its crew would be dead, killed by the gas the Wabbly itself had broadcast in its wake....