"This monster." Amber leans forward, staring into the window eagerly. She's half-minded to ignore what she feels is a spurious offer; it doesn't sound too appetizing. Upgrade me to a ghost fragment of an alien group mind? she wonders dismissively. "What is this alien?" She feels blind and unsure, stripped of her ability to spawn threads of herself to pursue complex inferences. "Is it part of the Wunch?"

"Datum unknown. It-them came with you," says the ghost. "Accidentally reactivated some seconds since now. It runs amok in the demilitarized zone. Help us, Amber. Save our hub, or we will be cut off from the network. If that happens, you will die with we-us. Save us …"

A single memory belonging to someone else unwinds, faster than a guided missile and far more deadly.

Amber, aged eleven, is a gawky, long-limbed child loose on the streets of Hong Kong, a yokel tourist viewing the hot core of the Middle Kingdom. This is her first and final vacation before the Franklin Trust straps her inside the payload pod of a Shenzhou spaceplane and blasts her into orbit from Xinkiang. She's free for the time being, albeit mortgaged to the tune of several million euros; she's a little taikonaut to be, ready to work for the long years in Jupiter orbit it will take her to pay off the self-propelled options web that owns her. It's not exactly slavery: Thanks to Dad's corporate shell game she doesn't have to worry about Mom chasing her, trying to return her to the posthuman prison of growing up just like an old-fashioned little girl. And now she's got a bit of pocket money, and a room in the Hilton, and her own personal Franklin remote to keep her company, she's decided she's gonna do that eighteenth-century-enlightenment tourist shit and do it right.

Because this is her last day at liberty in the randomly evolved biosphere.

China is where things are at in this decade, hot and dense and full of draconian punishments for the obsolescent. Nationalist fervor to catch up with the west has been replaced by consumerist fervor to own the latest fad gadgets; the most picturesque tourist souvenirs from the quaintly old-fashioned streets of America; the fastest, hottest, smartest, upgrades for body and soul. Hong Kong is hotter and faster than just about anywhere else in China, or in the whole damn world for that matter. This is a place where tourists from Tokyo gawp, cowed and future-shocked by the glamour of high-technology living.

Walking along Jardine's Bazaar – More like Jardine's bizarre , she thinks – exposes Amber to a blast of humid noise. Geodesic domes sprout like skeletal mushrooms from the glass-and-chrome roofs of the expensive shopping malls and luxury hotels, threatening to float away on the hot sea breeze. There are no airliners roaring in and out of Kai Tak anymore, no burnished aluminum storm clouds to rain round-eyed passengers on the shopping malls and fish markets of Kowloon and the New Territories. In these tense later days of the War Against Unreason, impossible new shapes move in the sky; Amber gapes upward as a Shenyang F-30 climbs at a near-vertical angle, a mess of incomprehensibly curved flight surfaces vanishing to a perspective point that defies radar as well as eyeballs. The Chinese – fighter? missile platform? supercomputer? – is heading out over the South China Sea to join the endless patrol that reassures the capitalist world that it is being guarded from the Hosts of Denial, the Trouble out of Wa'hab.

For the moment, she's merely a precocious human child. Amber's subconscious is off-lined by the presence of forceful infowar daemons, the Chinese government censorbots suppressing her cognition of their deadliest weapons. And in the seconds while her mind is as empty as a sucked egg, a thin-faced man with blue hair shoves her in the small of her back and snatches at her shoulder bag.

"Hey!" she yells, stumbling. Her mind's a blur, optics refusing to respond and grab a biometric model of her assailant. It's the frozen moment, the dead zone when on-line coverage fails, and the thief is running away before she can catch her balance or try to give chase. Plus, with her extensions off-line she doesn't know how to yell "stop, thief!" in Cantonese.

Seconds later, the fighter is out of visual range and the state censorship field lets up. "Get him, you bastards!" she screams, but the curious shoppers simply stare at the rude foreign child: An elderly woman brandishes a disposable phonecam at her and screeches something back. Amber picks up her feet and runs. Already she can feel the subsonics from her luggage growling at her guts – it's going to make a scene if she doesn't catch up in time. Shoppers scatter, a woman with a baby carriage almost running her down in her panic to get away from it.

By the time Amber reaches her terrified shoulder bag, the thief has disappeared: She has to spend almost a minute petting the scared luggage before it stops screeching and retracts its spines enough for her to pick it up. And by that time there's a robocop in attendance. "Identify yourself," it rasps in synthetic English.

Amber stares at her bag in horror: There's a huge gash in the side, and it's far too light. It's gone , she thinks, despairingly. He stole it. "Help," she says faintly, holding up her bag for the distant policeman looking through the robot's eyes. "Been stolen."

"What item missing?" asks the robot.

"My Hello Kitty," she says, batting her eyelashes, mendacity full-on at maximum utilization, prodding her conscience into submission, warning of dire consequences should the police discover the true nature of her pet cat. "My kitten's been stolen! Can you help me?"

"Certainly," says the cop, resting a reassuring hand on her shoulder – a hand that turns into a steel armband, as it pushes her into a van and notifies her in formally stilted language that she is under arrest on suspicion of shoplifting and will be required to produce certificates of authenticity and a fully compliant ownership audit for all items in her possession if she wants to prove her innocence.

By the time Amber's meatbrain realizes that she is being politely arrested, some of her external threads have already started yelling for help and her m-commerce trackers have identified the station she's being taken to by way of click-thru trails and an obliging software license manager. They spawn agents to go notify the Franklin trustees, Amnesty International, the Space and Freedom Party, and her father's lawyers. As she's being booked into a cerise-and-turquoise juvenile offenders holding room by a middle-aged policewoman, the phones on the front desk are already ringing with inquiries from attorneys, fast-food vendors, and a particularly on-the-ball celebrity magazine that's been tracking her father's connections. "Can you help me get my cat back?" she asks the policewoman earnestly.

"Name," the officer reads, eyes flickering from the simultaneous translation. "To please wax your identity stiffly."

"My cat has been stolen," Amber insists.

"Your cat?" The cop looks perplexed, then exasperated. Dealing with foreign teenagers who answer questions with gibberish isn't in her repertoire. "We are asking your name?"

"No," says Amber. "It's my cat. It has been stolen. My cat has been stolen."

"Aha! Your papers, please?"

"Papers?" Amber is growing increasingly worried. She can't feel the outside world; there's a Faraday cage wrapped around the holding cell, and it's claustrophobically quiet inside. "I want my cat! Now!"

The cop snaps her fingers, then reaches into her own pocket and produces an ID card, which she points to insistently. "Papers," she repeats. "Or else."

"I don't know what you're talking about!" Amber wails.

The cop stares at her oddly. "Wait." She rises and leaves, and a minute later, returns with a thin-faced man in a business suit and wire-rimmed glasses that glow faintly.