The botfly had confused flesh and machinery. It had been scanning on wide-spectrum default, where EM signatures shone like diffuse halogen. When the woman in black had been next to the cycler, the botfly had mistaken two intimate signals for one. When she had moved away, it had seen the cycler breaking apart.

This woman veritably gushed EM. There was machinery embedded in her flesh.

Perreault brought up a freeze-frame from the log. All in black, a single-piece form-fitting uniform painted onto the body. Opened around the face, a pale oval containing two paler ovals where eyes should be: tactical contacts, perhaps?

No, she realized. Photocollagen. To see in the dark.

Occasional disfigurements of plastic and metal—a leg sheath, control pads on the forearms, some sort of disk on the chest. And a bright yellow triangle on the shoulder, a logo consisting of two big stylized letters—GA, she saw with a quick enhance—and a smaller line of text beneath, muddied past recognition. A name tag, probably.

GA. That would be the Grid Authority, N'AmPac's power utility. And this woman was a scuba diver, with her breathing apparatus on the inside. Perreault had heard about them; they were in major demand for deepwater work. Didn't need to decompress, or something.

What was a GA diver doing staggering around in the transition zone? And why in God's name had she been feeding from the cycler? You'd have to be starving to eat that stuff, no matter how complete the nutrients were. Maybe the woman had been starving; she'd looked a wreck, she'd barely been able to stand up. Why had she run? Surely she'd known that someone would pick her up once the botfly had spotted her…

Of course she'd known.

Perreault rode the 'fly up a few hundred meters and scanned the ocean. Nothing out there that looked like a support vessel. (A submarine, maybe?) Directly beneath another botfly tracked south on its appointed rounds, a giant metallic beetle untroubled by the mystery that had confounded its predecessor.

And somewhere out there, below the waves, someone in hiding. Not a refugee. Not the usual kind, anyway. Someone who'd crawled ashore, starving, in the wake of an apocalypse. A woman with machinery in her chest.

Or perhaps a machine, with a woman on the outside.

Sou-Hon Perreault knew how that felt.

He'd made it a point not to track the time. You learned tricks like that, in Lubin's line of work. You learned to focus on the moment and deny the future. He'd tried to work it backward, too, reverse time's arrow and erase the past, but that hadn't been as easy.

It didn't matter. After a year's blind night—the earth cracking open beneath him, the relentless Pacific pushing down like a hydraulic press—he wept with gratitude at the half-remembered feel of dry land. This was grass. Those were birds. Oh dear God, that was sunlight. It was a scabby little rock lost somewhere in the Pacific, all lichens and dry scrub and shit-hawks, and he'd never been anywhere so beautiful.

He couldn't think of a better place to die.

He awoke under a clear blue sky, a thousand meters beneath the ocean's surface.

Fifty klicks from Beebe Station, maybe fifty-five from ground zero. Too far for the blast light to penetrate. He didn't know what he was seeing in that instant: Cherenkov radiation, perhaps. Some obscure effect of pressure waves on the optic nerve. A vision of afterlight, bathing the abyss in a deep and piercing blue.

And while he hung there like a speck suspended in gelatin, a little shockwave rumbled up from below.

An ancient, arboreal part of Lubin's brain gibbered in panic. A more recent module gagged it and began calculating: fast P-wave propagation through bedrock. Perpendicular ancillary waves rising off the bottom: the tremor he'd just felt. Two short sides of a right-angle triangle.

And afterward, clawing through a sluggish medium so much lighter than the seabed: the hypotenuse, the slower main shockwave.

Slower, but vastly more powerful.

Pythagoras said twenty seconds.

He was immune to absolute pressure: every sinus, every cavity, every pocket of internal gas had long-since been purged by the machinery in his thorax. He'd spent a year on the bottom of the ocean and barely felt it. He was solid flesh and bone, a viscous organic liquid, as incompressible as seawater itself.

The shockwave hit. Seawater compressed.

It looked like staring into naked sunlight: that was the pressure crushing his eyes. It sounded like the Tunguska Blast: that was the sound of his eardrums imploding. It felt like being ground between the Rocky Mountains: his body, squeezed briefly down to some flatter dimension as the front passed, then rebounding like a rubber ball yanked from a vise.

He remembered very little of what happened next. But that cold blue light—it had faded, hadn't it? After just a few seconds. By the time the shockwave had hit, all had been darkness again.

And yet here it was, still. Blue light, everywhere.

The sky, he realized at last. It's the sky. You're onshore.

A gull flew across his field of view, open-beaked. Lubin thought his ruined ears might have heard a faint, tinny bird-scream, but maybe that was his imagination. He heard very little these days, beyond a distant ringing that seemed to come from the other side of the world.

The sky.

Somehow, he must have made it.

He remembered hanging in the water like a torn mass of seaweed, unable to scream, unable to move without screaming. His body must have been instantly transformed into one continuous bruise. Under all that pain, though, nothing felt broken. Midwater, after all—nothing for his bones to break against, just a vast all-encompassing wave that simultaneously compressed and released everything with equable disregard…

At some point he must have started moving again. He remembered fragments: the feel of his legs cramping, pushing against the water. Periodic glimpses of his nav array, the compass leading him west, southwest. The gradual resolution of his global pain into more distinct, local varieties—he'd even played a little game, trying to guess the cause of each torment as it cried out from the crowd. That cold nausea—that must be seawater leaking into the auditory canal…and down there in the gut, well that's hunger, of course. And my chest, let me think, my chest—oh right, the implants. Meat and metal don't squeeze down the same way, the implants must've pushed back when the blast flattened me …

And now he was here, on an island barely a hundred meters long: he'd crawled ashore at one end and seen a lighthouse at the other, a lichenous concrete pillar that must have been decaying since the previous century. He'd seen no other sign of humanity in the time it had taken him to collapse unconscious onto the sandstone.

But he'd made it. Ken Lubin was alive.

He slipped, then. He allowed himself to wonder if the others had made it, to hope they'd made it, even. He knew they hadn't. They'd had a head start, but they'd been hugging the bottom to avoid detection. The seabed would have intensified the shockwave, thrown chunks of itself into the water like a crazed incompetent juggler; anything within ten meters of the bottom would have been pulverized. Lubin had realized that, belatedly, as he'd set out to catch up with the others. He'd weighed the risk of exposure, the risk of detonation, and had—so to speak—risen to the occasion. Even so, he was lucky to be alive.

Lenie Clarke hadn't been with the others. If anything, though, she was even deader than they were. She hadn't even tried to run, Lubin had left her waiting back at Ground Zero: a woman who wanted to die. A woman about to get her wish.