“It depends on individual programming. Some of us have emotion. We shall conduct you to Sheen, designated Mach’s mother, who is a humanoid robot with feeling. Do not reveal our part in this to any other person.”
Agape realized that there could be severe repercussions if the Citizen Purple realized that the machines serving him had acted against his interest. “I shall not reveal it.”
“Keep silent and follow the directions of our representatives. There are difficulties.”
She was sure there were! “I like you too,” she said.
“We shall pass you through the water conveyance system,” the grille said. “Water is mined beneath the Purple Mountains and piped to individual city-domes, where it is purified for potability. You must not enter the processing apparatus. Follow the tapping when you hear it.”
“But how long will that take?” she asked. “I can go for a time without renewed oxygen, but—“
“Four hours immersion. Our analysis of your system indicates that this is within your tolerance.”
“Yes. But not far within. If there should be any delay—“
“We shall monitor the situation.” Well, Mach had said to trust these machines. She would have to do so.
They took her down to a water pumping station. Here the pipes came up from below, where the dwindling fluid of Proton was mined, and fed into a cavern reservoir. On their instruction, she melted and entered the reservoir, then formed into a jellyfish shape and pumped her way across to the exit pipe. The pump was slowed so that she could enter without being torn apart, and the primary filtration screen was slid aside just long enough for her to pass. Once she was safely into the pipe, the pump resumed speed, and the water accelerated. She was on her way to the dome-city of Dradom, south of the Purple Mountains.
The water was cold. She had not thought of this; she was a warm-bodied life form, and the chill could kill her if it went too far. She hunched herself into globular form, becoming a sphere, conserving her heat as well as she could. In solid state she could exercise to generate heat, but she could not do so in this jellied state.
The cold penetrated her outer layer and closed relentlessly on her core. She realized that she was not going to make it; she had endured less than an hour, and had three hours to go. The machines might be monitoring her progress, but that meant they would be watching at the receiving station in Dradom; that would be too late.
She could not get out of the pipe; it was absolutely tight, for Proton could afford no leakage. And if it was possible to find a valve and operate it and get out, where would she be? Somewhere between stations, in the barrens of Proton, or underground. That was not a survival situation either.
She would have to change into fish-form and swim back to the reservoir, to alert the machines before she succumbed. They would have to find some other way to transport her, or warm the water. She didn’t know whether they could do that.
She wrestled herself into shape, with a powerful tail and small guidance fins. She had only a vague notion of the proper form of a fish, never having anticipated the need to assume this form; it took time and concentration to mimic a given form perfectly, and advance preparation was necessary. That was why she always assumed the same human form; it was far easier than developing a credible new one. But the approximate form of the fish she could manage, and it should swim well enough.
She worked her flukes and commenced swimming against the flow. But she quickly realized that the flow was too strong; she could not swim fast enough to counter it, let alone make progress against it. Already she was warming with the effort, while actually being carried along backward.
Warming? There was the answer! She did not need to escape the pipe; she could swim with flow, heating herself, and making even better progress than planned.
She turned about and swam. She did not push harder than she needed to maintain her body heat. She knew she would arrive ahead of schedule, and in good order.
Then she began to suffer from oxygen shortage. She should have lasted the full time, but realized that the energy consumed in the shape-change and the swimming was exhausting her reserve at several times the anticipated rate. She was in trouble again.
She stopped swimming immediately, conserving her remaining oxygen. But the damage had already been done; she knew she did not have enough to carry her through.
She was in water; didn’t that carry oxygen? In fact, it was made of oxygen, in part! If she could tap into that. . .