short burst of fire sent him slamming back into the weapons rack whilst the other man began shrieking, ‘Don’t shoot! Don’t shoot!’ and stabbed his hands in the air, his eyes closed. Whilst the survivor was cuffed, Langstrom and the others moved on through, into the cell blocks.
Just then, Braddock rejoined Saul, so he selected some of the scenes he was currently observing in his head and put them up on the screens. Without comment Braddock strapped himself down in a chair, laid his weapon on his lap, and gazed at the changing images with fatigue-reddened eyes.
Saul enjoyed observing the steady military efficiency of it all. Anyone inside the complex made a wrong move, and they died on the spot. After Langstrom had finished, twenty-eight guards occupied the cells, though one cell containing five served as a temporary morgue. Langstrom released forty prisoners, some of whom were now detailed to help others over to the barracks infirmary.
‘Could your men have taken them?’ Saul turned to Braddock.
‘Huh?’ Braddock’s head jerked up, betraying the fact that he’d dozed off. He shook himself awake in irritation, then said, ‘The idea was to avoid a fire fight.’
‘Get some sleep, Braddock,’ Saul urged him. ‘Go and join Hannah – I’m sure there’s room on that hammock for the both of you.’
‘What about you?’
What about him? Yes, he felt utterly weary, but his mind had not slowed down at all. Gradually he was embracing more and more of the overall function of his area of the station: its cams, microphones, motion and heat sensors becoming his extended senses, and its readerguns his immune system. By the same analogy the robots had become his eyes and hands. It was as if, during the initial stages of his taking over this area, he had dissipated himself throughout the station network. To him the station had originally felt messy, bits and pieces not integrated as a whole, but now it felt like an extension of himself.
‘I’ll be fine, Braddock,’ he assured him.
Even as he spoke, he watched Langstrom moving out of the cell block, watched released prisoners heading for Accommodation Sixteen, and noted the space plane at last rising over Earth’s horizon. He was simultaneously refining his robots’ attack programs, and making layered plans about how to deal with the impending assault. It all depended on where the incoming troops penetrated the station.
‘Okay, I’ll sleep,’ agreed Braddock, wearily unstrapping himself from the chair and propelling himself off to join Hannah. Saul watched him go; watched how careful he was not to wake her as he lay down on the wide hammock beside her.
Now that he wasn’t fighting for his life, Saul decided it was perhaps time to prepare for an option that until then had remained only in the back of his mind. He allowed his senses to range across the station, bypassing the Political Office and zeroing in on an area neither he nor Smith had so far paid much attention to, yet had been of great interest to Malden.
The wheel of Argus Station was interrupted – a quarter section missing from the rim – and below that break, attached to the asteroid itself, sat the Mars Traveller fusion engine. Through various cams in the locality, Saul now studied this behemoth further.
A section of the asteroid had been ground flat, then layered, three metres thick, with the foam composite on which the engine framework rested. This was just a secondary shock-absorber, since the first impact of the engine firing was sustained by the massive hydraulic shock absorbers positioned evenly about the framework, and secured to plates bolted directly onto the asteroid itself. From nearby housings, built into the lattice walls and girder structures, a great number of ducts, cables and pipes fed in just above this secondary layer and connected to the spherical fusion reactors used for start-up, and for maintaining the nozzle fields of the combustion chambers. Above the reactors stood pairs of large cylindrical fuel tanks, containing respectively liquid deuterium and tritium talc. Above these again were the dome-shaped pellet-aggregation plants, and above them the six fusion-combustion chambers rose in a rectangular cluster, each surrounded at its rear by fuser lasers and the deuterium–tritium injector guns. The whole massive structure stood half a kilometre tall, secured in place by a web of steel and a framework of I-beams, all of it fixed with integral pivot points so that the engine would be allowed to move against its shock absorbers.
When this thing was up and running, deuterium droplets sprayed into the aggregation plants, where they froze, and were next electrostatically coated with tritium dust. The resulting microspheres were then conveyed to the injectors, to be fired into each combustion chamber. Once a sphere reached the chamber’s centre, it was briefly captured in a magnetic bottle, then targeted with the beams from high-intensity stacked gallium-arsenide lasers. With each ignition, the bottle expanded to form a tubular containment field, focusing the resulting blast out of the rear of the engine. The lasers fired, igniting fusion, then this process repeated itself a hundredth of a second later, and from then on kept repeating. The resulting plasma explosion from the engine provided thrust measurable in millions of tonnes.
Saul ran a diagnostic check through the Traveller engine, just to assess its present condition. As he had learned from Malden, it had still enough fuel to hurl the space station down against the surface of the Earth with catastrophic consequences, or even to throw it out of Earth’s orbit altogether, and take it up to an appreciable portion of 1 per cent of light speed. He received some dodgy readings from two of the injectors in a combustion chamber, but that’s why they installed the chambers in an array of six. If one started to go wrong it simply shut down, while the rest would keep on working. The only other problems seemed to be the cooling system, which was frozen solid, and how frangible some of the engine’s components were at such a low temperature. This meant the engine could not be fired up at once, but would require several hours of warming up, during which process further faults might emerge.
Saul carefully considered the options opening up here, aware of being poised on the brink of some understanding that still eluded his grasp. When he finally transmitted the code that would start the engine-warming process, it seemed like he had made a decision impossible to recall. He waited then for some response from Smith but, after a minute passed with no reaction, he knew Smith could not have been paying attention to the engine. Saul finally let out a long slow breath, and withdrew.
Quiet now, alone at the centre of it all, Saul peered down at his hands, which were resting in his lap. He noticed a large bruise on the back of the right hand, and how thin they looked. Inset amidst numerous other controls on the console before him was a big keyboard, with virtuality half-glove indents on either side of it. He already knew this console from the inside, and directly manipulated the flows of information it controlled. Never again, in this place, would he have to physically press a button, shift a pointer, or open up frames in virtual displays. What use were his hands?
He raised them off his lap to inspect them more closely, and noticed how they started shaking. What was wrong with them? He knew his body was exhausted, and injured, but what was the problem here? He needed to find out, for whatever his present disconnection from his body, he couldn’t manage to do without it. Right now, if his physical self died, he died too.
