“QX—that’d be better. Two, then, instead of three. Four point nine eight zero and thirteen point nine four zero. You might break out a jar of burn-dressing, too; some fairly warm stuff is leaking through.”
“Will do. Come down, fast!”
Cloud landed. He stripped to the skin and his friends smeared him with the thick, gooey stuff that was not only added protection against radiation, but also a sovereign remedy for new burns. He exchanged his goggles for a heavier, darker pair. The two bombs arrived and were substituted for two of the original load.
“I thought of something while I was up there,” Cloud said then. “Fourteen kilograms of duodec is nobody’s firecracker, but it may be the least of what’s going to go off. Have you got any idea of what’s going to become of the intrinsic energy of the vortex when I snuff it?”
“Can’t say I have.” The Lensman frowned in thought. “No data.”
“Neither have I. But I’d say you’d better go back to the new station—the one you were going to move to if it kept on getting worse. The clocks are ticking there, aren’t they?”
“Yes. It might be the smart thing to do—just in case.”
Again in air, Cloud found that the activity, while still very high, was not too high for his heaviest bomb, but that it was fluctuating too rapidly. He could not get even five seconds of trustworthy prediction, to say nothing of ten. So he waited, as close to the horrible center of disintegration as he dared.
The flitter hung poised in air, motionless, upon softly hissing under-jets. Cloud knew to a fraction his height above the ground. He knew to a fraction his distance from the vortex. He knew the density of the atmosphere and the velocity and direction of the wind. Hence, since he could also read, closely enough, the momentary variations in the cyclonic storms within the crater, he could compute very easily the course and velocity necessary to land the bomb in the exact center of the vortex at any given instant of time. The hard part—the thing that no one had as yet succeeded in doing—was to predict, for a time far enough ahead to be of any use, a usably close approximation to the vortex’s quantitative activity.
Therefore Cloud concentrated upon the dials and gauges in front of him; concentrated with every fiber of his being and with every cell of his brain.