And of course anyone who could see him here now, with his fever and his sleeping bags, his eyephones and his cellular data port and his bottle of cooling piss, would think he was crazy too.

But he isn't. He knows he isn't, in spite of everything. He has the syndrome now, the thing that came after every test subject from that Gainesville orphanage, but he isn't crazy. Just obsessed. And the obsession has its own shape in his head, its own texture, its own weight. He knows it from himself, can differentiate, so he goes back to it whenever he needs to and checks on it. Monitors it. Makes sure it still isn't him. It reminds him of having a sore tooth, or the way he felt once when he was in love and didn't want to be. How his tongue always found the tooth, or how he'd always find that ache, that absence in the shape of the beloved.

But the syndrome wasn't like that. It was separate from him and had nothing to do with anyone or anything he, Laney, was even interested in. When he'd felt it starting, he'd taken it for granted that it would be about her, about Rei Toei, because there he was, close to her, or as close as you could get to anyone who didn't physically exist. 'They'd tasked almost every day, Laney and the idoru.

And at first, he considered now, maybe it had been about her, but then it was as though he'd been following something hack through the data flows, doing it without really thinking about it, the way your hand will find a thread on a garment and start pulling at it, unraveling it.

And what had unraveled was the way he'd thought the world worked. And behind that he'd found Harwood, who was famous, but famous in that way of being famous for being famous. Harwood who they said had elected the president. Harwood the PR genius, who'd inherited Harwood Levine, the most powerful PR firm in the world, and had taken it somewhere seriously else, into a whole other realm of influence. But who'd managed somehow never to become prey to the mechanism of celebrity itself. Which grinds, Laney so well knew, exceedingly fine. Harwood who, maybe, just maybe, ran it all, but somehow managed never to get his toe caught in it. Who managed, somehow, to be famous without seeming to be important, famous without being central to anything. Really, he'd never even gotten much attention, except when he'd split with Maria Paz, and even then it had been the Padanian star who'd made the top of every sequence, with Cody Harwood smiling from a series of sidebars, embedded hypertext lozenges: the beauty and this gentle-looking, secretive, pointedly uncharismatic billionaire.

'Hello, Laney says, his fingers finding the handle of a mechanical flashlight from Nepal, a crude thing, its tiny generator driven by a mechanism like a pair of spring-loaded pliers. Pumping it to life, he raises it, the faintly fluctuating beam finding the cardboard ceiling. Which is plastered, inch by inch, with dozens of stickers, small and rectangular, produced to order by a vending machine inside the station's west entrance: each one a different shot of the reclusive Harwood.

He can't remember going to the machine, executing a simple image search for Harwood, and paying to have these printed out, but he supposes he must have. Because he knows that that is where they are from. But neither can he remember peeling the adhesive backing from each one and sticking them up on the ceiling. But someone did. 'I see you, Laney says and relaxes his hand, letting the dim beam brown and vanish.

IN Market Street, the nameless man who haunts Laney's nodal configuration has just seen a girl.

Drowned down three decades, she steps fresh as creation from the bronze doors of some brokerage. And he remembers, in that instant, that she is dead, and he is not, and that this is another century, and this quite clearly another girl, some newly minted stranger, one with whom he will never speak.

And passing this one now, through a faint chromatic mist of incoming night, he bows his head some subtle increment in honor of that other, that earlier passing.

And sighs within his long coat, and the harness he wears beneath that: a taking in and giving up of one resigned breath, thronged around by the traders descending from their various places of employment. Who continue to emerge into the October street, toward drink or dinner or whatever home, whatever sleep, awaits them.

But now the one with whom he will not speak is gone as well, and he awash in some emotion, not loss exactly but a very particular awareness of his own duration in the world and in its cities, and this one most of all.

Beneath his right arm, reliably concealed, depends a knife that sleeps head down, like a vampire bat, honed to that edge required by surgeons, when surgeons cut with steel.

It is secured there with magnets set within a simple hilt of nickel silver. The blade's angled tip, recalling a wood carver's chisel, inclines toward the dark arterial pulse in the pit of his arm, as if reminding him that he too is only ever inches from that place the drowned girl went, so long ago, that timelessness. That other country, waiting.

He is by trade a keeper of the door to that country.

Drawn, the black blade becomes a key. When he holds it, he holds the wind in his hand.

The door swings gently open.

But he does not draw it now, and the traders see only a gray-haired man, wolfishly professorial, in a coat of grayish green, the color of certain lichens, who blinks behind the fine gold rims of his small round glasses and raises his hand to halt a passing cab. Though somehow they do not, as they easily might, rush to claim it as their own, and the man steps past them, his cheeks seamed vertically in deep parentheses, as though it has been his habit frequently to smile. They do not see him smile.

THE Tao, he reminds himself, mired in traffic on Post Street, is older than God.

He sees a beggar seated beneath a jeweler's windows. In those windows are small empty pedestals, formal absences of precious things, locked away now for the night. The beggar has wrapped his legs and feet in brown paper tape, and the effect is startlingly medieval, as though someone has partially sculpted a knight from office materials. The trim calves, the tapered toes, an elegance calling out for ribbons. Above the tape, the man is a blur, a spastic scribble, his being abraded by concrete and misfortune. He has become the color of pavement, his very race in question.

The cab lurches forward. The man in the loden coat reaches within it to adjust the knife against his ribs. He is left-handed, and he has thought often about such subtle polarities.

The girl who drowned so long ago has settled now, swept down in a swirl of toffee hair and less hurtful memories, to where his youth turns gently, in its accustomed tides, and he is more comfortable that way.

The past is past, the future unformed.

There is only the moment, and that is where he prefers to be.

And now he leans forward, to rap, once, upon the driver's tinted safety shield.

He asks to be taken to the bridge.

THE cab draws up before a rain-stained tumble of concrete tank traps, huge rhomboids streaked with rust, covered with the stylized initials of forgotten lovers.

This spot has a certain place in the local mythology of romance and has been the subject of any number of popular ballads.

'Pardon me, sir, says the cab driver, through several layers of protective plastic and digital translation, 'but do you wish me to leave you here? This neighborhood is dangerous. I will be unable to wait for you. The question is rote, required by law against the possibility of litigation.

'Thank you. I will be in no danger. His English as formal as that of the translation program. He hears a musical rattle, his words rendered in some Asian language he doesn't recognize. The driver's brown eyes look back at him, mild and dispassionate, through goggles, shield; multiple layers of reflection.