use of stairs. The twists and turns of the service tunnel were necessary to get around these topo-logically complex obstructions. But if she got safely past this complicated interpenetration of the water- andchlorine-breathing sections, the journey should be much simpler.
There was no shortage of vocal company. Warning labels, which spoke whether she pressed them or not, advised her to check constantly for cross-species contamination.
Provision had been made to take food without unsealing her protective suit, but her sensors showed the area clear of toxic material in dangerous quantities, so she opened her visor. The smell was an indescribable combination of every sharp, acrid, heavy, unpleasant, and even pleasant smell that she had ever encountered but, fortunately, only in trace quantities. She ate her food, quickly closed the visor, and moved on with increased confidence.
Three long, straight sections of corridor later she realized that her confidence had been misplaced.
According to her estimates of the distances and directions she had traveled, Cha Thrat should be somewhere between the Hudlar and Tralthan levels. The tunnel walls should have been carrying the thick, heavily insulated power cables for the FROBs’ artificial gravity grids and at least one distinctively marked pipe to supply their nutrient sprayers, as well as the air, water, and return waste conduits required by the warm-blooded, oxygen-breathing FGLIs. But the cable runs bore color combinations that should not have been there, and the only atmosphere line visible was the small-diameterpipe supplying air to the tunnel itself. Irritated with herself, she pressed the nearest audible label.
“I am an automatic self-monitoring control unit for synthesizer process One Twelve B,” it said importantly. “Press blue stud and access panel will move aside. Warning. Only the container and audible label are reus-able. If faulty, components must be replaced and not repaired. Not to be opened by MSVK, LSVO, or other species with low radiation tolerance unless special protective measures are taken.”
She had no desire to open the cabinet, even though her radiation monitor was indicating that the area was safe for her particular life-form. At the next alcove she had another look at her map and list of color codings.
Somehow she had wandered into one of the sections that were inhabited only by automatic machinery. The map indicated fifteen such areas within the main hospital complex, and none of them was anywhere near her, planned route. Plainly she had taken a wrong turning, perhaps a series of wrong turnings, soon after leaving the spiral tunnel connecting the PVSJ ward with its new operating room.
She moved on again, watching the tunnel walls and roof in the hope that the next change in the color codings would give her a clue to where she might be. She also cursed her own stupidity aloud and touched every label she passed, but soon decided that both activities were nonproductive. It was a wise decision because, at the next tunnel intersection, she heard distant voices.
Timmins had told her not to speak to anyone or to enter any of the public corridors. But, she reasoned, if she was already hopelessly off-course then there was nothing to stop her taking the side tunnel and moving toward the sound. Perhaps by listening at one of the corridor ventilating grilles she might overhear a conversation that would give her a clue to her present whereabouts.
The thought made Cha Thrat feel ashamed but, compared with some of the things she had been forced tothink about recently, it was a small, personal dishonor that she thought she could live with.
There were lengthy breaks in the conversation. At first the voices were too quiet and distant for her translator to catch what was being said, and when she came closer the people concerned were indulging in one of their lengthy silences. The result was that when she came to the next intersection, she saw them before there was another chance to overhear them.
They were a Kelgian DBLF and an Earth-human DBDG, dressed in Maintenance coveralls with the additional insignia of Monitor Corps rank. There were tools and dismantled sections of piping on the floor between them and, after glancing up at her briefly, they went on talking to each other.
“I wondered what was coming at us along the corridor,” the Kelgian said, “and making more noise than a drunken Tralthan. It must be the new DCNF we were told about, on its first day underground. We mustn’t talk to it, not that I’d want to, anyway. Strange-looking creature, isn’t it?”
“I wouldn’t dream of talking to it, or vice versa,” the DBDG replied. “Pass me the Number Eleven gripper and hold your end steady. Do you think it knows where it’s going?”
The Kelgian’s conical head turned briefly in the direction Cha Thrat was headed, and it said, “Not unless it was feeling that the tunnel walls were closing in on itv and it wanted to treat threatened claustrophobia with a* jolt of agoraphobia by walking on the outer hull. This, is no job for a Corps senior non-com shortly, if what the Major says is true, to be promoted Lieutenant.”
“This is no job for anybody, so don’t worry about it,” the Earth-human said. It turned to look pointedly along,the corridor to the left. “On the other hand, it could be contemplating a visit to the VTXM section. Stupid in a lightweight suit, of course, but maintenance trainees have to be stupid or they’d try for some other job.”
The Kelgian made an angry sound that did not translate, then said, “Why is it that nowhere in the vast immensity of explored space have we discovered yet a single life-form whose body wastes smell nice?”
“My furry friend,” the Earth-human said, “I think you may have touched upon one of the great philosophical truths. And on the subject of inexplicable phenomena, how could a Melfan Size Three dilator get into their waste- disposal system and travel through four levels before it gummed up the works down here?”
She could see the Kelgian’s fur rippling under its coveralls as it said, “Do you think that DCNF is stupid? Is it going to stand there watching us all day? Is it intending to follow us home?”
“From what I’ve heard about Sommaradvans,” the DBDG replied, still not looking directly at her, “I’d say it wasn’t so much stupid as a bit slow-witted.”
“Definitely slow-witted,” the Keigian agreed.
But Cha Thrat had already realized that, cloaked though they were by statements that were derogatory and personally insulting, the overheard conversation had contained three accurate points of reference which would easily enable her to establish her position and return to the planned route. She regarded the two maintenance people for a moment, sorry that she was forbidden to speak to them as they were to her. Quickly she made the formal sign of thanks between equals, then turned away to move in the only direction the two beings had nor discussed.
“I think,” the Kelgian said, “it made a rude gesture with its forward medial limb,”
“In its place,” the Earth-human replied, “I’d have done the same.”
During the remainder of that interminable journey she double-checked every change of direction and kept watch for any unexpected alterations in color codings on the way to Level One Twenty, and paused only once to make another large dent in her food store. When she opened Access Hatch Twelve and climbed into Corridor Seven, Timmins was already there.
“Well done, Cha Thrat, you made it,” the Earth-human said, showing its teeth. “Next time I’d better make the trip a little longer, and a lot more complicated. After that I’ll let you help out with a few simple jobs. You may as well start earning your keep.”
Feeling pleased and a little confused, she said, “I thought I arrived early. Have I kept you waiting long?”
Timmins shook its head. “Your distress beacon was for your own personal reassurance in case yoir felt lost or frightened. It was part of the test. But we keep permanent tracers on our people at all times, so I was aware of every move you made. Devious, aren’t I? But you passed very close to a maintenance team at one stage. I hope you didn’t ask them for directions. You know the rule.”
Cha Thrat wondered if there was any rule in Sector General so inflexible that it could not be bent out of shape, and she hoped that the outer signs of her embarrassment could not be read by a member of another species.
“No,” she replied truthfully, “we didn’t speak to each other”
CHAPTER 10
In the event, she was not given a job until Timmins had shown her the full range and complexity of the work that, one day, she might be capable of taking on. It was obvious that the Earth-human was quietly but intensely proud of its Maintenance Department and, with good reason, was showing off while trying to instill a little of its