Docchi himself was a good engineer and Nona couldn't be too highly evaluated. Between them they could convert unnecessary equipment into something they needed. Two geepees and a repair robot taken apart and properly reassembled might equal some inconceivable machine that would go a long way toward solving problems of food, air, meteor detection or what have you. It was a thought. Jordan clung perilously to the robot as it rumbled along. "Where is everyone?" he called back. "Asleep, I guess," said Docchi. "Sleeping, when there's so much to be done?" Habit had taken over. The mechanisms of the asteroid were still operating as they were set to function. The lighting in the dome indicated it was time and so they slept. But there were no hours, days, weeks, and moments any more, nothing but necessity to guide them. "We'll change this," said Docchi. "Most of us have been treated as invalids so long we believe it. We'll divide up in groups and from now on somebody will always be awake, working or watching, or both." It was obvious what the watch would be for. Empty space--but how empty? The region near Sol had been explored but what lay beyond? Between the sun and Alpha Centauri there might be many interstellar masses large enough to smash the asteroid. They'd have to take precautions. Jordan sent the machine along faster as if to compensate for others' inactivity. Presently he stopped abruptly, waiting for Docchi to catch up. He glanced down in front of his machine. "Here's one of them who was very sleepy," he said. "Unless----" Docchi looked at her. It was one of the Nonas who hadn't yet removed the disguise. The cosmetechnicians had done their work well and it was difficult to say who she was. There was a startling resemblance to the girl they'd just left with Anti. She was curled up in an uncomfortable position and it was obvious she wasn't there by choice. Jordan swung off the machine and felt her pulse. "There is one," he muttered, carefully looking her over. "Can't see anything," he said at last. "At first I thought the guards had done it but there's no broken bones nor, as far as I can tell, internal injuries. She ought to have a medical examination." Startled, Docchi glittered. Medical care was one of the luxuries they'd have to do without. They needn't fear epidemics; they were isolated and their bodies were phenomenally resistant to disease and anyway the antibiotics they had would quell any known infections. But here was something they hadn't accounted for. "There are a few people around who used to be nurses," said Docchi. "We'd better get them." "Where?" grunted Jordan. "She needs attention now."