"Seven hours—maybe six and a half," replied Hargedon. "We have to be careful."
"Very well. Stay outside when you arrive; I'll want to go right out in the tractor to get a closer look." She cut off.
"And that came through clearly enough!" remarked Hargedon as he swung the tractor around. "I've been awake for fourteen hours, driving off and on for ten of them; I'm about to drive for another six; and then I'm to stand by for more."
"Would you like me to do some of the driving?" asked Zaino.
"I guess you'll have to, whether I like it or not," was the rather lukewarm reply. "I'll keep on for awhile, though—until we're back in better light. You get at your radio job."
III
Zaino tried. Hour after hour he juggled from one band to another. Once he had Hargedon stop while he went out to attach
