There's something else, too, a familiar core in each of them, dark and writhing and angry. That doesn't surprise her. They don't even talk about it. Might as well discuss the fact that they all have five fingers on each hand.

* * *

Brander's busy at the library; Clarke can hear Nakata in Comm, on the phone.

"According to this," Brander says, "They've started putting smart gels in muckrakers."

"Mmm?"

"It's a pretty old file," he admits. "It'd be nice if the GA would download a bit more often, infections or no infections. I mean, we are single-handedly keeping the western world safe from brownouts, it wouldn't kill them to—"

"Gels," Clarke prompts.

"Right. Well, they've always needed neural nets in those things, you know, they wander around some pretty hairy topography — you hear about those two muckrakers that got caught up in the Aleutian Trench? — anyway, navigation through complex environments generally needs a net of some sort. Usually it's gallium-arsenide based, but even those don't come close to matching a human brain for spatial stuff. They still just crawled when it came to figuring seamounts, that sort of thing. So they've started replacing them with smart gels."

Clarke grunts. "Alice said it was moving too fast for a machine."

"Probably was. And smart gels are made out of real neurons, so I guess we tune in to them the same way we tune in to each other. At least, judging by what you guys felt — Alice said it wasn't happy."

"It wasn't." Clarke frowns. "It wasn't unhappy either, actually, it wasn't really an emotion at all, it was just — well, surprised, I guess. Like, like a sense of — divergence. From what was expected."

"Hell, I did feel that," Brander says. "I thought it was me."

Nakata emerges from Comm. "Still no word on Karl's replacement. They say the new recruits still are not through training. Cutbacks, they say."

By now it's a running joke. The GA's new recruits have to be the slowest learners since the eradication of Down's Syndrome. Almost four months now and Acton's replacement still hasn't materialized.

Brander waves one hand dismissively. "We've been doing okay with five." He shuts down the library and stretches. "Anyone seen Ken, by the way?"

"He is just outside," Nakata says. "Why?"

"I'm with him next shift; got to set up a time. His rhythm's been a bit wonky the past couple of days."

"How far out is he?" Clarke asks suddenly.

Nakata shrugs. "Maybe ten meters, when I last checked."

He's in range. There are limits to fine-tuning. You can't feel someone in Beebe from as far as the Throat, for example. But ten meters, easy.

"He's usually further out, isn't he?" Clarke speaks softly, as if afraid of being overheard. "Almost off the scope, most times. Working on that weird contraption of his."