"Gee, thanks," Freddy said.
"Thanks for what?"
"Thanks for understanding me, Lieutenant Corriston."
Corriston walked out between the tractors and raised his voice so that everyone within earshot could hear him.
"We're starting again in ten minutes," he said. "Better have another cup of coffee all around."
20
The sand had been blowing for forty minutes. It was a flying avalanche, a flailing mace. Even inside the tractors it set up an almost intolerable roaring in the eardrums, and when it struck the wind-guards head on the battered vehicles shook. For five or six seconds they would rumble on and then come to a jolting halt. Often they would start up again almost immediately but equally often they would remain stalled for several minutes, and at times there were more stalled tractors than moving ones across the entire line of advance.
The pelting never ceased, never let up even for a moment. Minute after minute the sand came sweeping down in red fury, tons upon tons of it, in great circular waves from high overhead and in jet velocity flurries close to the ground. In that assault of billions upon billions of spinning particles the brightly colored lichens which covered the Martian plains were uprooted, lifted high in the air, and carried for dozens of miles, flying carpets so small they scarcely could have supported the tiniest of elves.
For three hours the sandstorm continued to rage in fury, and then, abruptly, the wind died down, the last flurry subsided, and the colonists got under way again. And just for a change a few of them descended from the tractors and advanced on foot, keeping a little ahead of the swaying vehicles.