Getting ready consisted largely of making sure Orbit had enough food and water to keep him happy while she was gone. The tsiongi ran in his wheel. He’d run in it enough to give it a squeak. Nesseref thought that reprehensible; it seemed more like the slipshod manufacturing Big Uglies might do than anything she would have expected from the Race. She sprayed the hub of the exercise wheel with a lubricant. Orbit didn’t care for the odor, and hopped out and lashed his tail till it diminished.

No sooner had Nesseref put away the container of lubricant than the telephone hissed. “I greet you,” she said.

“And I greet you, Shuttlecraft Pilot,” a male from the shuttlecraft port replied. “Your first assignment has come in.”

“I am prepared,” she answered-the only possible response from a pilot. “Where am I to go?”

“This continental mass, the eastern subregion known as China,” the male said. “Burn parameters and time are already in the shuttlecraft’s computer. Anticipated launch time is-” He named the moment.

“I shall be there,” Nesseref said. “Do I have a passenger, or will I fly this mission by myself?”

“You have a passenger,” the male at the port answered. “She is a physician named Selana. Her specialty is skin fungi: Tosevite bacteria and viruses do not trouble us, but some of these organisms find us tasty. This problem appears to be more severe in China than elsewhere.”

“Very well,” said Nesseref, who thanked the spirits of Emperors past that such fungi had never troubled her. She snatched up the small bag she always took on shuttlecraft flights-since she didn’t use cloth wrappings, her needs while on a journey were less than those a Big Ugly would have had in similar circumstances.

The jolt of acceleration, the weightlessness that followed, felt like old friends that had been away too long. Once weightlessness began, she had a chance to make small talk with Selana. “Why are these skin fungi so common in China, Senior Physician?” she asked.

“I believe it is the astonishing amount of excrement in everyday use there,” the other female answered. “The local Big Uglies use it for manure and fuel and sometimes, mixed with mud, as a building material as well. Facilities for disinfecting bodily waste, as you may imagine from that, are for all practical purposes nonexistent.”

“I am sorry I asked,” Nesseref said. Weightlessness did not nauseate members of the Race, as it sometimes did Tosevites, but disgust could do the job. Another thought occurred to her. “How do any Tosevites raised in such an environment survive? Their burden of disease must be far worse than ours.”

“It is, and a great many of them do not survive,” Selana said. “This takes me back to the most primitive days of the Race, at the very dawn of ancientest history. We once lived something like this, though the greater abundance of water in China creates a more unsanitary situation than we ever knew over such a wide area.”

Nesseref did not want to believe that the Race had ever lived in such close conjunction to filth. Such a thought would damage the sense of superiority she felt toward the Big Uglies. She said, “Spirits of Emperors past be praised that we do not live in such appalling conditions any more.”

“Truth,” Selana said, and added an emphatic cough. “But, here on Tosev 3, we are forced to do so because the natives do so. This creates difficulties of its own.”

“Senior Physician,” Nesseref said, “the Big Uglies do nothing but create difficulties.” Selana did not argue with her.