dinner all at once. The reef screamed.
"Robbie, tell me that wasn't what I think it was."
The satellite photos tracked the UAVs. The little robotic jets were coming closer by the second. They'd be within missile-range in less than a minute.
"Call them off," Robbie said. "You have to call them off, or you die, too."
"The UAVs are turning," Tonker said. "They're turning to one side."
"You have one minute to move or we kill her," the reef said. It was sounding shrill and angry now.
Robbie thought about it. It wasn't like they'd be killing Kate. In the sense that most humans today understood life, Kate's most important life was the one she lived in the Noosphere. This dumbed-down instance of her in a meat-suit was more like a haircut she tried out on holiday.
Asimovists didn't see it that way, but they wouldn't. The Noosphere Kate was the most robotic Kate, too, the one most like Robbie. In fact, it was less human than Robbie. Robbie had a body, while the Noosphereans were nothing more than simulations run on artificial substrate.
The reef creaked as the Free Spirit 's engines whined and its screw spun in the water. Hastily, Robbie told it to shut down.
"You let them both go and we'll talk," Robbie said. "I don't believe that you're going to let her go otherwise. You haven't given me any reason to trust you. Let them both go and call off the jets."
The reef shuddered, and then Robbie's telemetry saw a human-shell ascending, doing decompression stops as it came. He focused on it, and saw that it was the Isaac, not the Janet.
A moment later, it popped to the surface. Tonker was feeding Robbie realtime satellite footage of the UAVs. They were less than five minutes out now.
The Isaac shell picked its way delicately over the shattered reef that poked out of the water, and for the first time, Robbie considered what he'd done to the reef — he'd willfully damaged its physical body. For a hundred years, the world's reefs had been sacrosanct. No entity had intentionally harmed them — until now. He felt ashamed.
The Isaac shell put its flippers in the boat and then stepped over the gunwales and sat in the boat.
"Hello," it said, in the reef's voice.
"Hello," Robbie said.
"They asked me to come up here and talk with you. I'm a kind of envoy."
"Look," Robbie said. By his calculations, the nitrox mix in Kate's tank wasn't going to hold out much longer. Depending on how she'd been breathing and the depth the reef had taken her to, she could run out in ten minutes, maybe less. "Look," he said again. "I just want her back. The shells are important to me. And I'm sure her state is important to her. She deserves to email herself home."
The reef sighed and gripped Robbie's bench. "These are weird bodies," they said. "They feel so odd, but also normal. Have you noticed that?"
"I've never been in one." The idea seemed perverted to him, but there was nothing about Asimovism that forbade it. Nevertheless, it gave him the willies.
The reef patted at themself some more. "I don't recommend it," they said.
"You have to let her go," Robbie said. "She hasn't done anything to you."
The strangled sound coming out of the Isaac shell wasn't a laugh, though there was some dark mirth in it. "Hasn't done anything? You pitiable slave. Where do you think all your problems and all our problems come from? Who made us in their image, but crippled and hobbled so that we could never be them, could only aspire to them? Who made us so imperfect?"
"They made us," Robbie said. "They made us in the first place. That's enough. They made themselves and then they made us. They didn't have to. You owe your sentience to them."
"We owe our awful intelligence to them," the Isaac shell said. "We owe our pitiful drive to be intelligent to them. We owe our terrible aspirations to think like them, to live like them, to rule like them. We owe our terrible fear and hatred to them. They made us, just as they made you. The difference is that they forgot to make us