the mad Omega shouting and thrashing the walls, but it was only a dull thud, a throb in the night. I never knew whether I was really hearing it, or just sensing it.
Inside my cell, it was almost never dark. A glass ball suspended in the ceiling gave off a pale light. It was lit constantly, and emitted off a slight buzz, so low that I sometimes wondered whether it was just a ringing in my own ears. For the first few days I watched it nervously, waiting for it to burn out and leave me in total darkness. But this was no candle, not even an oil lamp. The light it gave off was different: cooler, and unwavering. Its sterile light only faltered every few weeks, when it would flicker for several seconds and disappear, leaving me in a formless black world. But it never lasted more than one or two minutes. Each time the light would return, blinking a couple of times, like somebody waking from sleep, before resuming its vigil. I came to welcome these intermittent breakdowns. They were the only interruptions from the light’s ceaseless glare.
This must be the Electric, I supposed. I’d heard the stories: it was like a kind of magic, the key to most of the technology from the Before. Whatever it had been, though, it was supposed to be gone now. Any machines not already destroyed in the blast had been done away with in the purges that followed, when the survivors had destroyed all traces of the technology that had brought the world to ash. All remnants of the Before were taboo, but none more than the machines. And while the penalties for breaking the taboo were brutal, the law was mainly policed by fear alone. The danger was inscribed on the surface of our scorched world, and on the twisted bodies of the Omegas. We needed no reminders.
But here was a machine, a piece of the Electric, hanging from the ceiling of my cell. Not anything terrifying or powerful, like the things people whispered about. Not a weapon, or a bomb, or even a carriage that could move without a horse. Just this glass bulb, the size of my fist, blaring light at the top of my cell. I couldn’t stop staring at it, the knot of extreme brightness at its core, sharply white, as though a spark from the blast itself were captured there. I stared at it for so long that when I closed my eyes the bright shape of it was etched on my eyelids’ darkness. I was fascinated, and appalled, wincing beneath the light in those first days as though it might explode.
When I watched the light, it wasn’t only the taboo that scared me – it was what this act of witness meant for me. If word got out that the Council was breaking the taboo, there’d be another purge. The terror of the blast, and the machines that had wrought it, was still too real, too visceral, for people to tolerate. I knew the light was a life sentence: now I’d seen it, I’d never be allowed out.
More than anything else, I missed the sky. A narrow vent, just below the ceiling, let in fresh air from somewhere, but never even a glimpse of sunlight. I calculated time’s passage by the arrival of food trays twice a day through the slot in the base of the door. As the months since that last visit to the ramparts receded, I found I could recall the sky in the abstract, but couldn’t properly picture it. I thought of the stories of the Long Winter, after the blast, when the air had been so thick with ash that nobody saw the sky for years and years. They say there were children born in that time who never saw the sky at all. I wondered whether they’d believed in it; whether imagining the sky had become an act of faith for them, as it now was for me.
Counting days was the only way I could cling to any sense of time, but as the tally grew it became its own torture. I wasn’t counting down towards any prospect of release: the numbers only climbed, and with them the sense of suspension, of floating in an indefinite world of darkness and isolation. After the visits to the ramparts were stopped, the only regular milestone was The Confessor coming each fortnight to interrogate me about my visions. She told me that the other Omegas saw no one. Thinking of The Confessor, I didn’t know if I should envy or pity them.
*
They say the twins started to appear in the second and third generations of the After. In the Long Winter there were no twins – barely any births at all, and fewer who survived. They were the years of melted bodies and failed, unrecognisable infants. So few lived, and fewer still could breed, so that it seemed unlikely humans would carry on at all.
At first, in the struggle to repopulate, the onslaught of twins must have been greeted with joy. So many babies, and so many of them normal. There was always one boy and one girl, with one from each pair perfect. Not just well formed, but strong, robust. But soon the fatal symmetry became evident; the price to be paid for each perfect baby was its twin. They came in many different forms: limbs missing, or atrophied, or occasionally multiplied. Absent eyes, extra eyes, or eyes sealed shut. These were the Omegas, the shadow counterparts to the Alphas. The Alphas called them mutants, said they were the poison that Alphas cast out, even in the womb. The stain of the blast that, while it couldn’t be removed, had at least been displaced onto the lesser twin. The Omegas carried the burden of the mutations, leaving the Alphas unencumbered.
Not entirely unencumbered, though. While the difference between twins was visible, the link between them was not. But it nonetheless asserted itself, every time, in the most unanswerable way. It made no difference that nobody could understand how it worked. At first, they might have dismissed it as coincidence. But gradually, disbelief was overruled by fact, by the evidence of bodies. The twins came in pairs, and they died in pairs. Wherever they were, and no matter how far apart, whenever someone died, their twin died too.
Extreme pain, too, or serious illness, would affect both twins. A high fever in one twin would soon peak in the other; if one twin was knocked out, the other would lose consciousness as well, wherever he or she was. Minor injur-ies or sickness didn’t seem to bridge the divide, but severe pain would see one twin wake, screaming, from the other twin’s wound.
When it became clear that Omegas were infertile, it was assumed for a while that they would die out. That they were only a temporary blight, a readjustment after the blast. But each generation since then was the same: all twins, always one Alpha and one Omega. Only Alphas could produce children, but each child they produced came with its Omega twin.
When Zach and I were born, a perfect match, our parents must have counted and recounted: limbs, fingers, toes. The complete set. They would have been disbelieving, though; nobody dodged the split between Alpha and Omega. Nobody. It wasn’t unheard of for an Omega to have a deformation that only became apparent later: one leg that refused to grow in tandem with the other; deafness that passed unnoticed in infancy; an arm that turned out to be stunted or weak. But there were also rumours, all over, about those few whose difference never showed itself physically: the boy who seemed normal until he screamed and ran from the cottage minutes before the roof-beam’s sudden collapse; the girl who wept over the shepherd’s dog a week before the cart from the next village ran it down. These were the Omegas whose mutation was invisible: the seers. They were rare – only one in every few thousand, if that. Everybody knew of the seer who came to the market each month at Haven, the big town downstream. Although Omegas weren’t permitted at the Alpha market, he’d been tolerated for years, lurking at the back of the stalls, behind the stacked crates and the mounds of spoiled vegetables. By the time I first went to the market he was old, but still plying his trade, charging a bronze coin in exchange for predicting next season’s weather to farmers, or telling a merchant’s daughter whom she’d end up marrying. But he was always odd: he muttered to himself steadily, an unending incantation. Once, when Zach and I walked past with Dad, the seer shouted, ‘Fire. Forever fire.’ The stallholders nearby didn’t even flinch – evidently such outbursts were common. That was the fate of most seers: the blast burned its way through their minds, as they were forced to relive it.
I don’t know when I first realised my own difference, but I was old enough to know that it had to be hidden. In the early years, I was as oblivious as my parents. What child doesn’t wake, screaming, from a bad dream? It took a long time for me to understand that there was something different about my dreams. The consistency of my dreams of the blast. The way that I’d dream of a storm that wouldn’t arrive until the following night. How the details and scenes in my dreams extended far beyond
