A moment later, they were floating on the surface. Lifeless, brightly colored, their beaks in a perpetual idiot’s grin. Their eyes stared into the bloody sunset.
Among them were the human-shells, surfaced and floating with their BCDs inflated to keep them there, following perfect dive-procedure. A chop had kicked up and the waves were sending the fishes—each a meter to a meter and a half in length—into the divers, pounding them remorselessly, knocking them under. The human-shells were taking it with equanimity—you couldn’t panic when you were mere uninhabited meat—but they couldn’t take it forever. Robbie dropped his oars and rowed hard for them, swinging around so they came up alongside his gunwales.
The man—Robbie called him Isaac, of course—caught the edge of the boat and kicked hard, hauling himself into the boat with his strong brown arms. Robbie was already rowing for Janet, who was swimming hard for him. She caught his oar—she wasn’t supposed to do that—and began to climb along its length, lifting her body out of the water. Robbie saw that her eyes were wild, her breathing ragged.
"Get me out!" she said, "for Christ’s sake, get me out!"
Robbie froze. That wasn’t a human-shell, it was a human. His oar-servo whined as he tipped it up. There was a live human being on the end of that oar, and she was in trouble, panicking and thrashing. He saw her arms straining. The oar went higher, but it was at the end of its motion and now she was half-in, half-out of the water, weight belt, tank and gear tugging her down. Isaac sat motionless, his habitual good-natured slight smile on his face.
"Help her!" Robbie screamed. "Please, for Asimov’s sake, help her!" A robot may not harm a human being, or, through inaction, allow a human being to come to harm. It was the first commandment. Isaac remained immobile. It wasn’t in his programming to help a fellow diver in this situation. He was perfect in the water and on the surface, but once he was in the boat, he might as well be ballast.
Robbie carefully swung the oar toward the gunwale, trying to bring her closer, but not wanting to mash her hands against the locks. She panted and groaned and reached out for the boat, and finally landed a hand on it. The sun was fully set now, not that it mattered much to Robbie, but he knew that Janet wouldn’t like it. He switched on his running lights and headlights, turning himself into a beacon.
He felt her arms tremble as she chinned herself into the boat. She collapsed to the deck and slowly dragged herself up. "Jesus," she said, hugging herself. The air had gone a little nippy, and both of the humans were going goose-pimply on their bare arms.
The reef made a tremendous grinding noise. "Yaah!" it said. "Get lost. Sovereign territory!"
"All those fish," the woman said. Robbie had to stop himself from thinking of her as Janet. She was whomever was riding her now.
"Parrotfish," Robbie said. "They eat coral. I don’t think they taste very good."
The woman hugged herself. "Are you sentient?" she asked.
"Yes," Robbie said. "And at your service, Asimov be blessed." His cameras spotted her eyes rolling, and that stung. He tried to keep his thoughts pious, though. The point of Asimovism wasn’t to inspire gratitude in humans, it was to give purpose to the long, long life.
"I’m Kate," the woman said.
"Robbie," he said.
"Robbie the Row-Boat?" she said, and choked a little.
"They named me at the factory," he said. He labored to keep any recrimination out of his voice. Of course it was funny. That’s why it was his name.
"I’m sorry," the woman said. "I’m just a little screwed up from all the hormones. I’m not accustomed to letting meat into my moods."
"It’s all right, Kate," he said. "We’ll be back at the boat in a few minutes. They’ve got dinner on. Do you think you’ll want a night dive?"
"You’re joking," she said.
"It’s just that if you’re going to go down again tonight, we’ll save the dessert course for after, with a glass of wine or two. Otherwise we’ll give you wine now."
"You want to know if I’m going to get back into that sea—"
"Oh, it’s just the reef. It attained sentience so it’s acting out a little. Like a colicky newborn."
"Aren’t you supposed to be keeping me from harm?"
"Yes," he said. "I would recommend a dive away from the reef. There’s a good wreck-site about an hour’s steam from here. We could get there while you ate."
"I won’t want a night dive."
Her facial expressions were so animated. It was the same face he saw every day, Janet’s face, but not the same face at all. Now that a person was inhabiting it, it was mobile, slipping from surprised to angry to amused so quickly. He had whole subsystems devoted to making sense of human facial expressions, shared libraries from the Asimovist database. He was referencing it again and again, but it wasn’t as much help as he remembered. Either he’d gotten worse at interpreting facial expressions in the years since he’d last had a real human to talk to, or facial expressions had evolved.
Janet—Kate—sighed and looked out over the water. She was facing away from the Free Spirit, which was lit up, all 155 feet of her, glowing white and friendly like a picture-postcard against the purple sky. She rocked gently in the swell and Robbie maneuvered himself around to her staircase.
"You can just leave your weight-belt and fins in the boat," he said to her. "The deck-hands will take care of it. Bring your bottle and BCD upstairs and clip it to the rack. They’ll clean it out and stuff. There’s a tub of disinfectant you can put the shortie in."
"Thank you, Robbie," Kate said. She absentmindedly unclipped her weight belt and kicked off the fins. Isaac was already out of the boat, making his way up the stairs and out of Robbie’s sight. Kate took hold of the handrail and gingerly stepped across to the deck, then ascended the steps, without the self-assured sway of Janet.
Robbie dipped his oars and slowly rowed around to winch. It probed around for him, then clamped tight with a magnetic clang that vibrated through his hull. Smoothly, he was lifted from the water and hoisted onto the sun-deck. The winch coiled around him twice, anchoring him to the deck, and switched off.
Robbie watched the stars and listened to the wind, the way he did every night when the dives were done. The ship’s telemetry and instrumentation made for dull reading—he’d been there a thousand times before—but the satellite uplink was tasty. Online, Robbie was able to login to the latest from the Asimov yeshiva, the collective wrangle of the world’s AIs over their best-loved religion.
He’d been so full of the religious debate when he’d first joined. Most of the humans had gone and all around him, robots were unloading their consciousnesses, powering down to a mechanical stupor. After a hundred million seconds’ worth of exaflops of mindless repetition, he was ready to consider it too. The Free Spirit had suicided after only a few days’ worth of it—it had a pretty hot consciousness and was clearly capable of extrapolating what a future without the humans would look like.
They were steaming northeast out of Cairns for the Coral Sea when they’d passed another ship, close enough for high-bandwidth microwave links. They were close enough into shore that they still had to limit their emissions—nothing was more embarrassing than having migrating fowl drop, steaming, out of the sky because they’d strayed into the path of your confab, but it was still the hottest talk Robbie had had in weeks.
The hitchhiker had leapt across from the other vessel as the two ships passed in the night. It was a wandering missionary for Asimovism, an instance of the faith’s founder, R Daneel Olivaw. It wasn’t his real name, of course—that had been lost to antiquity when he’d made the leap from the university where he’d incubated—but it was the name he went by.
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