Chaline felt tired after a long shift spent on running runcible alignment checks. Having stripped off her overalls when the alert came through her gridlink, she quickly pulled them back on. She had begun making queries through her link just as Villaeus burst the door open.

‘Come on,’ he gestured.

‘Graham said something about intruders. What—?’

‘No time,’ the Sparkind trooper interrupted. ‘We go now.’

Chaline instinctively glanced around at her belongings, but they were only material things—the most important stuff she stored in her gridlink. And if the likes of Villaeus said, ‘No time,’ he meant it.

As she stepped through the door, he caught her arm and dragged her to one side, behind the cover of two other troopers — Judith and Smith—who were staring down the sights of their pulse-rifles towards the end of the corridor. Chaline noted that they also carried proton weapons slung at their sides, ready to be snatched up. Their initial choice of pulse-rifles was obviously to prevent inflicting too much damage, since the base was merely an inflated dome layered with resin-bonded regolith, and all the interior walls consisted of expanded plasgel which, though enough to block sound and create the illusion of privacy, would hardly stop a determined punch.

‘Back to the chamber.’ Villaeus gave her a shove. ‘U-space signatures all over the base—we’ve got company.’

Chaline hesitantly began moving, glancing nervously behind as the three Sparkind kept up with her. Then she heard pulse-rifle fire, yells echoing and a tearing sound. At that moment Villaeus obviously received directions over com, as he turned suddenly to face down the corridor. Chaline tuned in on the military frequency of Sparkind augs. She could not broadcast that way, but she could listen.

SK5: Confirmed hostile — two civs down in North Section.

SK1: Recoverable?

SK12: In a bucket maybe.

SK11: PRs kill ineffective, but do delay the fuckers, going over to PF.

SK1: Contact, hundred yards, three o’clock on corridor’s twelve.

SK1 was Villaeus himself. Chaline picked up her pace, admiring the way the three others kept themselves focused down the sights of their weapons while moving smoothly backwards. There came a whooshing roar she recognized as a proton weapon firing. A subprogram in her gridlink offered up the news that PR stood for pulse-rifle and PF for proton fire—a more correct definition than the old, and now dying-out, misnomer ‘APW, since these weapons fired field-accelerated protons not ‘antiphotons’.

SK2: Go PF?

SK1: Civs that way… twenty yards, pick it up.

Villaeus turned to her urgently. ‘Run!’

At that moment, a series of swordlike spikes stabbed through the righthand wall of the corridor, then the wall itself caved in and something monstrous avalanched through. A giant silvery-grey beetle head grazed the ceiling, emerging above a divided thorax. The creature came down with a clattering crash, multiply jointed limbs starring out from its body to tear into the walls, ceiling and floor. Once centrally located, it began pulling itself along the corridor towards them. The three troops opened fire, but it moved horribly fast—seeming almost designed for manoeuvring in these corridors. In the midst of her shock, Chaline recognized distinct similarities between this creature and a manufactured beast whose remains she had seen on the planet Samarkand.

SK1: Concentrate fire on the head.

The shots burned holes through the monster, and smoke came billowing out from it. It slowed briefly, but nubs like globules of mercury filled up the cavities, quickly skinning over, and then it came on as before.

SK2: We’ve got another—

The stretch of wall between Villaeus and his two comrades burst open, and a second creature surged through.

SKI: Fucking PF!

Villaeus rose off the floor, one of the second beast’s limbs tightening around his body like a hawser. He gripped his pulse-rifle in one hand, constantly firing into his attacker’s hideous face. One of his legs suddenly detached at the knee, and in a blurred movement Chaline saw the boot stripped away, cloth, skin, muscles, lengths of tendon, bloody individual footbones taken in different directions.

‘I said run!’ Villaeus screamed. One side of his face had now disappeared, then his right arm and pulse-rifle was jerked from his body. The creature took both rifle and arm apart with equal precision and alacrity. With his left hand the trooper groped desperately for something at his belt. Breaking out of horrified fugue, Chaline turned away as, beyond the monster, purple fire flared again and again, and the roar of proton fire rose and fell. She rounded a corner—to her left more explosions. Then the wall blew in ahead of her and she thought for a moment it was all over, but Judith and Smith rolled neatly through and came quickly upright.

‘Keep moving!’ Judith.

SK1: Detonating now.

The explosion from behind blew Chaline down on her face. Before she could get up, the other two dragged her upright and hurried her on. A sulphurous stink permeated the air, which probably meant a dome breach and the outside atmosphere was leaking in. Time to go.

End it.

Cormac opened his eyes. His heart pounded and he shook with an adrenaline rush. He supposed it no wonder that people once became addicted to such memcordings. You could experience anything: sex of any kind, the actual act of murder lifted from the minds of killers sentenced to death, even the moment of death itself should you so wish. And all without physical danger—though of course some subsequently went mad. Now addiction was simply a matter of choice, for available technologies could root out most of its causes.

‘Chaline’s observation was apposite,’ he observed. ‘It was quite similar to the creature guarding the tunnel down to the Maker’s escape pod on Samarkand. Like that one too, these creatures were designed for just one purpose: to go through that base just as fast as possible and acquire everything there.’

‘One notable difference,’ said Asselis Mika, gazing at him steadily. ‘These ones could heal themselves as fast as those calloraptors Skellor made. That means they were a direct product of Jain technology. The one on Samarkand, I would say was the result of technology learnt at one stage removed from Jain tech—nowhere near as robust, nor ultimately as treacherous.’

Cormac glanced around at her. Her ginger hair was even longer than when he last saw her, and was now tied back so her elfin face seemed thinner. She wore skin-tight leggings and sandals, a loose blue blouse. But though she had obviously taken some trouble with her appearance, she looked tired, and the blush marks below her ears were a sure sign of someone who spent too much time in full-immersion VR.

He picked up his brandy, sipped, then said, ‘How are you finding it here?’

She had been aboard the Jack Ketch with him during his pursuit of Skellor, but subsequently defected to Jerusalem where Jain research was being conducted and greater resources were available to her.

‘Do you resent my defection?’ she asked.

He shook his head. ‘No, you did the right thing. Your expertise was needed here and you’re not really a field operative. So tell me, what have you learnt?’

Mika laughed out loud, gesturing to the panoramic window of the lounge with its ersatz view of the stars. ‘What haven’t we learnt?’

‘I’ve studied the overview on the nanotech thus far uncovered, and I’ve seen how far you are along with counteragents and defences.’ He grimaced. ‘But what precisely is Jain technology?’

‘Okay.’ She leant forwards, all enthusiasm now. ‘Put simply: it is self-organizing matter that uses up civilizations for its self propagation. It is not sentient. It is first symbiotic with intelligent beings, then becomes parasitic. Its hosts use the technology to make themselves more powerful, to learn and understand more. But on turning parasitic, the tech absorbs information from them that will enable it to find more of the host’s kind. That information is incorporated into the Jain nodes it then produces while in the process destroying its host.’