The Quantum Thief

14. THE DETECTIVE AND THE ARCHITECT

Isidore looks at Unruh’s dead body for the second time. The millenniaire looks less peaceful in death than the previous night: his pale face is twisted in a hideous grimace, and there are red marks on his forehead and temples. His fingers are curled into claws.

It is cold in the crypt chamber and Isidore’s breath steams. The locked-up gevulot here makes everything feel unreal and slippery, and the silence of the three Resurrection Men who escorted him here does not help. The red-robed figures, faces hidden by gevulot and darkness, stand unnaturally still, without fidgeting or, it seems, breathing.

‘I appreciate you letting me come down here,’ he says, addressing the one with the golden infinity symbol at his (or her?) breast. ‘I realise that this is somewhat… unusual.’

There is no reply. He is almost certain that the Resurrection Man is the same one he spoke to earlier at the Resurrection House, after realising what the thief was planning to do. After the city quake, they brought him here, to show him what had happened, but so far no one has spoken a word.

It was the only logical conclusion: the only reason to steal such a small amount of Time was to give it back, to carry out something criminal in the underworld. Poor Unruh. The pieces do not fit, and it makes him uncomfortable.

He studies the scene with his magnifying glass. There are two different types of body preservation gel on the floor, in different states of coagulation: Unruh’s and someone else’s. That fits with his theory of how the thief got in: by somehow pretending to be dead, then opening an entrance to a heavily armed accomplice. He makes a mental note to check the exomemories of all the memento mori agoras where the Time beggars go to die.

There are also traces of bizarre artificial cells – far more complex than anything from an Oubliette synthbio body – under Unruh’s fingernails, clear signs of a struggle. And the marks on his head and the trace damage in his dead brain indicate a forced upload.

‘Would it be possible to bring him back, just for a minute?’ Isidore asks the Resurrection Men. ‘We could use his testimony, to figure out exactly what happened here.’ He is unsurprised that the red-robed underworld guardians only reply with silence: they are not willing to compromise the resurrection laws for any purpose, even to solve crimes.

He walks around the room, thinking. One of the Resurrection Men is treating the damaged Quiet the thief’s accomplice attacked. Isidore has already inspected the bullet, a little sliver of diamond. Whatever internal structure it once had, it has fused into a solid mass.

The thing that bothers him is the lack of motive. The incident at the party, and now this: it has nothing in common with the gogol pirate cases he has either read about or been involved in. By all accounts, the thief made no attempt whatsoever to gain access to Unruh’s gevulot. It is a non-crime. Some Time was stolen, and returned, with two separate copies of Unruh’s mind – which, of course, are completely useless without his gevulot keys to decrypt them. And how was the Time stolen in the first place?

‘Do you mind if I have a look at this?’ He picks up Unruh’s Watch, carefully disentangling its chain from the millenniaire’s hand. ‘I want to have this investigated.’

The Resurrection Man with the infinity sign nods slowly, takes a little unadorned Watch from his pocket and touches it and Unruh’s Watch with a Decanter. Then he places the new Watch exactly where the old one was and gives Unruh’s sleek black timepiece to Isidore.

‘Thank you,’ Isidore says.

The Resurrection Man shoves his hood back and opens his gevulot a little, revealing a round, friendly face. He clears his throat.

‘Apologies… we spend so much time with… our Quiet brothers, that it is hard to…’

‘That’s all right,’ Isidore says. ‘You have been very kind.’

The man takes something from his pocket. ‘My partner… down there…’ He points at the floor. ‘When un-Quiet… he was a… fan.’ He coughs. ‘So I was wondering… could you… perhaps… an autograph?’

He holds out a newspaper clip covered in tempmatter film. Adrian Wu’s article.

Sighing, Isidore takes it and digs out a pen from his pocket.

Isidore blinks at the daylight, glad to leave the dark facade of the Resurrection House behind. The wind on Persistent Avenue feels hot after the chill of the underworld, but the sound of human voices is refreshing.

The optogenetic attack at the party left him feeling disoriented, with a mild headache. A med-Quiet inspected him along with the rest of the guests, but found no permanent traces of an infection. It was able to isolate the virus, and when Isidore and Odette searched the grounds, they found the discarded flower that had been used to spread it. Isidore carries it with him in his shoulder bag, safely wrapped in a smartmatter bubble.

He has not slept, but the thoughts racing through his head won’t let him rest. And whenever he thinks about the thief, there is a tingle of shame in his belly. They were so close, face to face – and he stole both Isidore’s countenance and the entanglement ring. How the identity theft was accomplished is yet another mystery. As far as Isidore knows, there is no way the thief should have been able to gain any access to his gevulot.

Not that the thief left any traces of himself in the garden exomemory either: the only time he appears without a gevulot mask is when he speaks to Isidore. And it is clear that he is able to alter his appearance at will. Distantly, he wonders if a part of the unease he feels is fear: perhaps le Flambeur is out of his league.

He stops for a moment under one of the Avenue’s cherry trees and breathes in the smell of the blossoms to clear his head. Nothing but reputation and a certain flair separate his enemy from any common gogol pirate. Somewhere, le Flambeur will have made a mistake, and Isidore is going to find it.

Gritting his teeth, he heads for the side alleys of the Avenue, to find a Watchmaker’s shop.

‘Interesting,’ says the Watchmaker, squinting at Unruh’s Watch through a massive brass eyepiece. ‘Yes, I think I can tell you how it was done.’

The eyepiece lens flickers with digital information. The Watchmaker is a lanky, middle-aged man in a black T-shirt with ripped sleeves, blue hair, a scraggly moustache and ears stretched by implants and earrings. His workshop is a cross between a quantum physics laboratory and a horologist’s workspace, full of sleek humming boxes with holodisplays hovering around them and neatly sorted piles of tiny gears and tools on wooden work surfaces. Violent music plays in the background, and the Watchmaker bops his head up and down frantically to its rhythm as he works. After Isidore told him the story of Unruh, he was more than happy to help, although it takes some effort to ignore the occasional lewd glance he casts at the young man.

He pulls something out of the Watch with the pincers that the fingers of his gloves end in, miniature hands with fingers extending to the molecular level. He holds it up against a light. It is barely visible, a tiny flesh-coloured spider. He places it into a tiny tempmatter bubble and magnifies it: it becomes an insectoid monster the size of a hand. Isidore takes out his magnifying glass, prompting a curious glance from the Watchmaker.

‘This baby here has EPR states in its belly,’ the Watchmaker says. ‘It wormed its way into the ion traps of the Watch where the Time credits are stored, got the stuff in its stomach entangled with the trap quantum states, sent out a signal of some kind – and bamf, the states got teleported away. Almost the oldest trick in the quantum mechanic’s handbook, although this is the first time I’ve seen it used to steal Time.’

‘Where would the receiver be?’ Isidore asks.

The Watchmaker spreads his hands. ‘Could be anywhere. Qupting does not need a strong signal. Could be in space, for all I know. This little bug is definitely not from around here, by the way. Sobornost, for my money.’ He spits to the floor. ‘I hope you catch ’em.’

‘Me too,’ Isidore says. ‘Thank you.’ He looks around the shop. There is something familiar about the Watches under the glass counter, something that tickles his mind-

A Watch. A heavy brass face. A silver band. The word Thibermesnil-

Where does the memory come from?

‘Are you all right, son?’ asks the Watchmaker.

‘Yes, I’m fine. I just need to sit down for a moment.’ Isidore sits down on the chair the quantum horologist offers. Closing his eyes, he revisits the exomemories from the party. There: a bizarre sense of seeing double, just after he spoke to the thief, just before he stole Time from Unruh. Of course: if the thief used Isidore’s own identity key to pretend to be him, he has access to the exomemories created during those moments.

‘Could you turn the music down, please?’

‘Sure. Sure. Would you like a glass of water?’

He massages his temples, carefully sifting through the memories, separating the ones that are his from the ones that should not be. He looked at his Watch. That is his Watch. And there are other thoughts there too, glimpses of architectural drawings, a beautiful woman with a scar on her face, and a butterfly-like spaceship with glittering wings. Emotion, too: arrogance and self-confidence and bravado that make him angry. I’m going to get you, he thinks. See if I don’t.

He opens his eyes, head pounding, accepts the offered glass and drinks deep. ‘Thank you.’ He takes a deep breath. ‘One more question, and then I’ll stop bothering you. Have you ever seen this Watch?’ He passes a co-memory of the Watch he just saw to the Watchmaker.

The man considers it for a moment. ‘Can’t say I have. But this looks like something that old Antonia would have made, two streets down. Tell her Justin sent you.’ He winks at Isidore.

‘Thank you again,’ Isidore says. ‘You have been a big help.’

‘Don’t mention it. It’s difficult to meet young people who appreciate Watches these days.’ He grins, putting his gloveless hand on Isidore’s thigh. ‘Although if you really want to show your appreciation, I’m sure there’s something we can come up with-’

Isidore flees. As he hurries down the street, the roar of the music starts again, mixed with laughter.

‘Yes, I remember this,’ says Antonia. She is not old at all, at least not in appearance: in her third or fourth body, perhaps, a petite dark-skinned woman with Indian features. Her shop is bright and orderly, with Xanthean designer jewellery displayed alongside the timepieces. She immediately printed out a tempmatter instantiation of the co-memory, weighing it in her hands, tapping it with a bright red fingernail.

‘It would have been years ago,’ she says, ‘twenty Earth years maybe, judging by the design. The customer wanted a special little mechanism, you could hide something inside it and open it by pressing a combination of letters. A gift to a lover, probably.’

‘Do you, by any chance, remember anything about the person who bought it?’ Isidore asks.

The woman shakes her head.

‘It’s shop gevulot, you know – we rarely get to keep that sort of thing. I’m afraid not. People tend to be very private about their Watches.’ She frowns. ‘However – I’m pretty sure there was a whole series of these. Nine of them. Very similar designs, all for the same customer. I can give you the schematics, if you like.’

‘That would be wonderful,’ Isidore says. Antonia nods, and suddenly his head is full of complex mechanical and quantum computing design diagrams, along with another headache jolt. As he blinks at the pain, Antonia smiles at him. ‘I hope Justin did not scare you,’ she says. ‘This is a lonely profession – long hours, not much appreciation – sometimes he gets a little carried away, especially with young men like you.’

‘Sounds like being a detective,’ Isidore says.

Isidore has lunch at a small floating restaurant in Mont-golfiersville and gathers his thoughts. Even here, he is recognised – apparently his involvement in Unruh’s carpe diem party has been prominently reported by the Herald – but he is too preoccupied with the Watches to hide from every curious glance with gevulot. Hardly tasting his pumpkin quiche, he goes through the designs in his mind.

They are all identical, except for the engravings. Bonitas. Magnitudo. Eternitas. Potestas. Sapientia. Voluntas. Virtus. Veritas. Gloria. Goodness, Greatness, Eternity, Power, Wisdom, Will, Virtue, Truth, Glory. None of them qualities he would immediately associate with Jean le Flambeur. But they do suggest that the Unruh affair was not some random impulse to play games with Oubliette barbarians, as the millenniaire suspected. Clearly, le Flambeur has some connection to Mars, one stretching back twenty years at least.

Drinking coffee and looking at the view of the city below, he spends an hour ’blinking at the words. In combination, they appear in medieval texts, Raymond Lull’s Dignities of God from the 13th century, with some connections to the sephiroths of Kabbalistic tradition and the lost art of… memory. One of Lull’s followers was Giordano Bruno, who perfected the art of memory palaces, of storing mental images in physical locations, as if outside the mind. That, at least, is a connection that resonates. The Oubliette exomemory does the same thing, stores everything thought, experienced and sensed in a location in the ubiquitous computing machinery around it.

The shape of it feels right, but he is not sure if it is just pattern matching, like seeing faces in the clouds. Then the memory fragment about the architectural drawings comes back.

Another ’blink – looking for memory palaces – reveals that there was a series of architectural pieces commissioned by the Voice twenty years ago. Nine reflections on memory, by an architect called Paul Sernine.

All the palaces are located in the Maze, relatively close to each other, but the public exomemories about them are old, and Isidore is forced to do some footwork to find them.

The first piece he comes across is near a Maze marketplace, squeezed between a synagogue and a small public fabber centre. It is completely bizarre. The size of a small house, it is made from some black, smooth material. It consists of geometric surfaces, planes, cubes, stuck together in a seemingly haphazard fashion: still, he can sense that there is some order to its structure. And the surfaces do form spaces resembling rooms and hallways, only oddly distorted as if by a funhouse mirror. A plaque near what could be called an entrance has a small plaque that says Eternitas.

The structure looks like something designed by an algorithmic process, rather than a human being. And parts of it look fuzzy, as if the surfaces continued to fork and divide fractally beyond the human range of vision. On the whole, it looks rather forbidding. Someone local has made the black interior slightly less sinister and tomblike by placing a few flower-pots inside: vines have grown to curl around the jutting spikes and surfaces to find light.

There is a little local exomemory that opens up while Isidore studies the structure. It describes Eternitas as an ‘experiment in transforming exomemory data directly into architecture and livable spaces.’ The Oubliette is full of similar art projects – indeed, many of Isidore’s fellow students work on considerably stranger things – but clearly there is something deeper here, something that is or has been important to the thief.

On impulse, he takes out his magnifying glass. He gasps. When he zooms in, the surface reveals immense complexity, black leaves and spikes and pyramids, whole architectures with alarming regularity that go all the way down to the molecular level. And the material is something the glass does not even recognise, something resembling what it calls zoku q-matter, but denser: in spite of its relatively small size, the structure must be immensely heavy. Underneath, it looks less like a piece of architecture than a part of some unimaginably complex machine, frozen in time.

And there are nine of these? Isidore takes a deep breath. Maybe I really am out of my depth.

Deep in thought, he starts walking towards the next Reflection piece, only a few hundred metres away, trusting his sense of direction to guide him through the Maze.

How is all this related to Unruh? he thinks. Time, memory castles, Dignities of God? Maybe it doesn’t make sense: maybe le Flambeur is insane. But his every instinct tells him there is a logic here; that everything so far is a sliver of some larger iceberg.

He jumps at a sudden noise. There is the silhouette of a parkrouller on a nearby rooftop. This is one of the parts of the Maze where construction was started and then stopped when the drifting of the city platforms moved it to an unfavourable position: everything here is half-finished and deserted. The buildings lining the narrow streets look like decayed teeth. As he watches, the parkrouller disappears, becoming a gevulot blur. He quickens his pace and keeps walking.

After a minute, he hears the footsteps, following him. At first, he thinks the sound belongs to one person. But when he stops to listen, it is clear from their echo that there are several followers, marching in perfect synchrony, like soldiers. He walks briskly and turns away from the main street, into a small alley, only to see the slow drift of the Maze close the other end and turn it into a dead end. When he turns around, he sees the four Sebastians.

They all look like Élodie’s boyfriend: sixteen, perfect features, blond hair, a young Martian’s zoku-influenced, tight-fitting clothes. At first their faces are expressionless. Then they all smile in unison, mouths twisting into cruel, mirthless lines.

‘Hello, copykiller,’ one of them says.

‘We recognise you now,’ says the second.

‘You should have-’

‘-minded your own business,’ finishes the last.

‘Foolish to come to our domain, smelling of the underworld.’

‘Foolish to come near the places the hidden ones have told us to guard.’

Like trained soldiers, they take a single step forward, and draw out small knives.

Isidore turns and runs, as fast as he can, looking for handholds to climb up the obstacle that has closed the alley.

The parkroulling Sebastian takes him down in a flying tackle. Air escapes his lungs, and he slams both elbows at the pavement, followed by his nose. The world goes red for a second. When his vision returns, he is prone on his back, and four perfect porcelain faces loom in a circle above him. There is something cold and sharp, pressing against his throat. Hands hold his limbs down. Desperately, he opens his gevulot, reaching for the police Quiet’s emergency feed. But it feels distant and slippery: the gogol pirates are doing something to stop it.

Upload tendrils dance above his face like the firework snakes at the party: he imagines them hissing. He feels a little pinprick of pain at his throat. One of the Sebastians lifts up a small injection needle. ‘We are going to have your mind, copykiller,’ he says. ‘It was such a blessing to find out what you looked like. We praised Fedorov when we saw the paper. You are going to scream now, just like the chocolatier in my brother’s memories. Pray that the Founders in their wisdom give you a part of the Great Common Task. As a missile guidance system. Or food for the Dragons, perhaps.’ The tips of the tendrils feel like sharp, electric kisses on his scalp.

‘Let him go,’ says a rasping chorus voice.

The Gentleman stands at the other end of the alley, just at the limit of Isidore’s blurring vision, a black shape with a glint of silver.

‘I don’t think so,’ the first Sebastian says. Some of the tendrils peek out of his mouth like a bouquet of glowing snakes. ‘I am touching his brain. Even your witch fog is not faster than light, bitch.’

Light. The Sebastians are looking at the Gentleman now. With a thought, he dissolves the q-bubble that holds the thief’s rose in his bag. I hope it works fast enough. I hope it works on them. He opens his gevulot to the Gentleman, enough to show his surface thoughts. Fireworks, he thinks at the tzaddik. Light.

‘In fact, you can listen to his screams-’

There is a flash of light, and then a long fall, down somewhere dark.

Eventually, the light comes back. Something soft cradles Isidore. The faces of the Sebastians still flicker in his vision, but after a moment he realises it is his own, reflecting from the Gentleman’s mask.

‘Don’t try to talk,’ says the tzaddik. ‘Help is on its way.’ Isidore is floating in the air, on a soft cushion of something: it feels nicer than his bed.

‘Let me guess,’ Isidore says. ‘That was the second stupidest thing you have ever seen?’

‘Not exactly.’

‘That was good timing,’ Isidore says. ‘We could have used you at the party last night.’

‘We cannot be everywhere. I take it that this foolish pursuit of yours involves the infamous uninvited guest?’

Isidore nods.

‘Isidore, I have been meaning to talk to you. To apologise. My judgement after our last case was… harsh. I do feel that you have what it takes to be one of us. I never had any doubts about that. But that does not mean that you have to be. You are young. There are other things you can do with your life. Study. Work. Create. Live.’

‘Why are we talking about this now?’ Isidore asks. He closes his eyes. His head is throbbing: a double dose of the optogenetic weapon in less than a day. The tzaddik’s voice sounds hollow and far away.

‘Because of this,’ the tzaddik says. ‘Because you keep getting hurt. And there are more dangerous things than vasilevs out there. Leave the thief to us. Go home. Sort things out with that zoku girl of yours. There is more to life than chasing phantoms and gogol pirates.’

‘And why… should I listen to you?’

The tzaddik does not reply. But there is a gentle touch on his cheek, and, suddenly, a light kiss on his forehead, accompanied by an odd sensation of a silver mask flowing aside. The touch is so light and smooth that, for once, Isidore is prepared to admit that Adrian Wu was right. And there is a perfume, smelling faintly of pine-

‘I’m not asking you to listen,’ the tzaddik says. ‘Just be careful.’

The kiss burns on his forehead when he opens his eyes. Suddenly, there is a bustle of activity and voices around him: Resurrection Men and red-and-white medical Quiet. But the tzaddik is gone. Lights flash in Isidore’s eyes again, and he closes his eyes. Like fireworks, he thinks. And with that, just before the dark, comes a question.

How did the tzaddik know about the fireworks?