"Yes?"

"Everything," said so softly, eyes fixed on some other place. "You can deduce... everything. From a single atom, a single point in time and space, one can examine the fundamental stuff of the universe and conclude, by sheer mathematical process, everything that was, everything that is, everything that must be. Everything."

Another door opened: a room even hotter than the others, fans working desperately to keep it cool, and there it was, nearly seven storeys high, scaffolding running up to its topmost level, men and womenahundreds of themaswarming over its every detail. The air tasted of electricity, smelled of electricity, the noise was almost deafening. He handed me a radioactivity badge, more advanced than anything I'd worn in Pietrok-112, nearly twenty years from now, nearly two hundred years ago, and over the roar shouted, "This is the quantum mirror!"

I looked, and it was beautiful.

The quantum mirror.

Look into it too deep, and God is looking right back at you.

And it was nearly finished.

Chapter 80.

My third life.

I have told you that I wandered for a while as a priest, monk, scholar, theologianacall it what you willaidiot in search of answers, whatever. I have told you of my meeting with Shen, the Chinese spy who respectfully hoped I wasn't there to overthrow communism. I have told you of being beaten in Israel and scorned in Egypt, of finding faith and losing it as easily as a comfortable pair of slippers.

I have not told you of Madam Patna.

She was an Indian mystic, one of the first to realise that the most profitable way to be enlightened was to spread her enlightenment to concerned Westerners who hadn't had enough cultural opportunities to nurture their cynicism. I was one of those Westerners for a time and sat at her feet chanting empty nothings with the rest of them, for a while genuinely convincedaas I was genuinely convinced of most things in that lifeathat this chubby, cheery woman did indeed offer me a path to enlightenment. After a few months of working for freeawhich I considered a necessary part of becoming closer to nature and thus myselfain her extensive plantations, I was granted a rare interview with her, and, almost shaking with excitement, sat cross-legged on the floor before the great lady and waited to be wowed.

She was silent a long time, deep in meditation, and we devotees had learned long ago not to question these deep and presumably profound pauses. At last she raised her head and, looking straight through me, declared, "You are a divine being."

As statements went, this was nothing very new for our mandir.

"You are a creature of light. Your soul is song, your thoughts are beauty. There is nothing within you which is not perfection. You are yourself. You are the universe."

Chanted by a crowd in a large room, all this could be rather impressive. Now, with this one woman breathily intoning it, I was struck by just how contradictory so much of it appeared to be.

"What about God?" I asked.

This question seemed a little impertinent to Madam Patna, but rather than disappoint an avid follower with a casual dismissal, she smiled her trademark cheerful smile and proclaimed, "There is no such thing as God. There is only creation. You are part of creation, and it is within you."

"Then why can I not influence creation?"

"You do. Everything about you, every aspect of your being, every breath..."

"I mean... why can I not influence my own path through it."

"But you do!" she repeated firmly. "This life is only a passing flicker of the flame, a shadow. You will cast it off and soar to a new plane, a new level of understanding, where you will realise that what you perceive now as reality is no more than a prison of the senses. You will look, and it will be as if you see with the eye of the maker. You are within creation. Creation is within you. You are an aspect of the first breath that made the universe, your body is made of the dust of bodies that have gone before, and when you die, your body and your deeds give life. You, yourself, are God."

In later months I grew rather tired of such empty aphorisms, and when a dissatisfied disciple whispered in my ear that our austere, ascetic leader in fact lived a life of wealthy luxury some three miles down the road, I threw down my straw hat and hand scythe, and left to find a better philosophy. Yet, all these lives later, I still wondered exactly what it would mean to see the universe with the eyes of God.

Chapter 81.

"Harry, this is the single most important thing that anyone will ever do."

Vincent in my ear.

So many voices in my ear, so many years to hear them.

"This will change mankind, redefine the universe. The quantum mirror will unlock the secrets of matter, of past and future. We will understand at last those concepts which we only pretended to comprehendalife, death, consciousness, time. Harry, the quantum mirror is..."

"What can I do?" I asked, and was surprised to hear my own voice. "How can I help?"

Vincent smiled. His hand rested on my shoulder, and for a second I thought I saw the glimmer of tears run along his lower eyelids. I had never seen Vincent cry and thought for a moment that this was joy.

"Stay with me," he said. "Stay here, by my side."

The quantum mirror.

To look with the eyes of the maker.

Vincent Rankis. Fancy seeing you here! We shall hold up a mirror, as it were, to nature itself...

Codswallop!

It is either your or my ghastly duty to ensure that one of us kisses Frances on the lips.

Total balderdash!

I'm a fucking good guy!

It's your past, Harry, it's your past.

Rory Hulne, dying alone.

Patrick August, you were always my father.

Silence as Harriet's coffin slips beneath the earth. Silence by the fireside in a cottage overgrown with weeds. There's a drug dealer living in the house where once Constance Hulne ruled with an iron fist, where Lydia went mad and Alexandra saved a baby boy's life, where a serving girl called Lisa Leadmill was pushed back on a kitchen table and did not scream. And from that moment a child would be born who would travel again, and again, and again, the same life, the same journey again and again and...

Richard Lisle, dead at my hands, life after life. Please, I never done nothing.

Rosemary Dawsett, cut up in a bathtub.

Jenny, you should be on the news, you should.

Will you run away with me?

Do you like me?

I have always liked you, Jenny. Always.

The bride to be!

Do you approve, Harry? Isn't she beautiful?

Akinleye. Did you know that me, Harry? Was she right to forget?

I personally favour the thigh! A bath helps, but one must make do, mustn't one? Tra la, Dr August, so long and all that!

Virginia, striding beneath the summer sky in London. Killing kalachakra in the womb. Shaking as we made her forget.

You ever get bored of whatever it is you do, come find me on the thin red line!

Many, many apologies.

I'm so sorry, Harry. It's for the best. This is how it has to be.

The quantum mirror.

To see with the eyes of God.

The world is ending.

We cannot stop it.

Now it's up to you.

The quantum mirror.

Stay here. By my side.

Vincent, I sabotaged the quantum mirror.

It was easy to do.

I didn't even have to be there. You had concluded that I was no scientist, that I could not help you as I had in Russia, for here was a man who didn't even understand the thinnest Newtonian principle, let alone the technologyanearly a hundred years ahead of what it should have beenathat you were unleashing in that mountain in Switzerland. I was your admin man, as I had been now for so many lives, your go-to man for trivial events. For nine months I stayed in those caves in Switzerland, watching the quantum mirror grow, listening to the roaring of the machines with every test, and knew you were close, you were so close now. Reports landed on my desk and you ignored them, believing I could not understand, but Vincent, I was the only other person there who could, every dot and every dash, every decimal point and finest permutation of the graph. It was I who, when I should have ordered thorium 234, changed a digit in the paperwork and ordered thorium 231. It was I who cut costs on the boron rods, slicing away a few vital millimetres from the specs; I who shifted the decimal point one sig fig over on the wave calculations. The document was seven pages long, and I moved the point on the very first page so that by the time the calculations had been worked through, the final answer was nine orders of magnitude out.

You will wonder why I did this.

A desire to preserve the universe? It sounds incredibly grand to say itaperhaps I should get myself a T-shirt and a cape to make clear the same? Who are you, god that you would become, to destroy the world in your search for knowledge?

Habit?

I had dedicated so many years to bringing you down, it seemed a waste not to do it.

Jealousy?

Perhaps a little.

Vengeance?

You had been such excellent company, it was sometimes hard to remember this. Centuries are a long time to hold a grudge, but then...

Remember.

Remember like a mnemonic, and here we are again, swallowing poison in Pietrok-112 and being grateful for it, feeling the electrodes press into my head, tasting electricity on my tongue, not once, but twice, and the second time you held my hand and said it was for the best, of course, but for the best. Jenny. Do you like me, Harry? Do you like me? Weeping in the cold, your private secretary, your personal dog, your pet, your whatever-it-was-you-wanted-me-to-be. I close my eyes and I remember and yes.

It is vengeance.

And perhaps a very small realisation that something inside me has died and that this is the only way I can think of to get it back. A notion of "doing the right thing"aas if that meant anything to me any more.

I sabotaged the quantum mirror, knowing full well that all these thingsaa decimal point, an isotope, a boron rodawould be enough. I would set your research back by fifty years, and you wouldn't even look twice at me, never suspect that I had done it.

The test was set for a summer day, not that seasons had much relevance in the hot dampness of the caves. The excitement was palpable in the air. Vincent came into my office, face flushed from his regular jog round the facility, a substitute, I felt, for the freezing jaunts in the open air he'd subjected to me in Pietrok-112. "Are you coming?" he demanded.

I laid down my pen carefully, folded my hands, looked him in the eye and said, "Vincent, I'm very happy that you're very happy, but as I'm sure you know, I've got fifty tins of out-of-date tuna in the canteen, and the passionate, dare I say fiery, letter of complaint I'm in the middle of writing is, without wanting to overblow the matter, a work of epic prose the likes of which the tuna industry has never seen, and you are rather serving as the person from Porlock."

He blew air loudly between his lips like an irritated orca. "Harry, without wanting to demean your works in any way, when I tell you that the test today could be the beginning of a revolution in the very nature of what it is to be human, I'm sure you'll understand that the chastising of the tuna industry can take second place. Now get your stuff together and come with me!"

"Vincent-"

"Come on!"

He hauled me by the elbow. I grumbled, grabbing my radioactivity badge as he hauled me into the corridor. All the way down into the depths of the mountain I protested about unhealthy tuna, rotting salad and the cost of maintaining the electricity supply in this place, and he exclaimed, "Harry! Future of the species, insight into the universe; ignore the salad!"

Down by the quantum mirror there were nearly thirty scientists bundled into the observation gallery, looking down to the great beast itself. It had grown, a great dangling, misshapen rocket of bits added and bits taken away, of rolling cables and flashing interior surfaces, of heat and steam and pressure and a thousand monitoring devices tapped into computers fifty years ahead of their time. I was the only non-scientist in the room, but as the floor around the quantum mirror itself was cleared, Vincent dragged me to the front, exclaiming, "These idiots wouldn't be able to number-crunch if you didn't feed them and help them wipe their bloody bottoms. Come on! You deserve to see this."

I supposed I did, considering that it was my subtle adjustment of the paperwork which would almost certainly lead to the catastrophic failure of the approaching test.

A warning siren was sounded three times, telling all personnel to vacate the immediate area of the machine itself. Then the most straight-faced scientist they could find began a countdown, as generators roared into life and a dozen faces stared at rolling banks of increasingly excited data. Vincent was almost hopping up and down beside me, his hand briefly squeezing mine before a sense of masculine decorum snatched his arm away again and he chewed instead on his fingertips. I watched, arms folded, an unimpressed expression firmly on my face as the power in the device swelled to its maximum, and inside its depths hideously fine and fiendishly clever pieces of equipment stolen from a hundred years from now turned, turned, turned, aligned, opened up, drew energy in and spat energy out and...

"Sir?"

The voice was a question, raised by a technician at a computer screen. The question was emotional, not objective. Objectively the questioner could read perfectly well the data on their screen, but emotionally they felt the need for support. Vincent sensed it at once, turning on the spot to stare at the unfortunate enquirer even as someone else stood up sharply and barked, "Shut it down!"

They didn't need to say anything more than that, didn't want to say anything more than that, and immediately a hand was slammed down on the emergency cut-out button and the chamber with the quantum mirror in it went dark. So did the observation gallery, a sudden stifling blackness lit only by the grey glow of the screens and the soft blues of the emergency lights set into the floor. I looked round and saw Vincent, skin ghostly, the veins on the side of his neck throbbing far too fast to be healthy, eyes wide and lips slightly apart, staring first at the men and women in the room and then slowly, inexorably, back at the quantum mirror.

The quantum mirror, like the rest of the cavern, should have been in darkness, but we could all see the orange glow rising from its core, a cheerful reddish pinkness spreading down its thinner metal joins, eclipsed only by the black smoke starting to belch from its interior. I could hear a hissing of tiny metal parts under pressure, rising to a screaming, rising to a shriek, and, glancing down at my radioactivity badge, I was probably the only person in the room to see the thin film start to turn black.