He quickly headed into the hard shadow of the thruster, and almost at once found the maintenance hatch he was looking for. Though he needed primarily to get to the docks, approaching them across the rim itself would have been foolish, since the troops entrenched there would be on the lookout for a flanking move by Langstrom’s men, and would be sure to spot him. Besides, even though most of the laser satellites nearby were disabled, Smith still controlled a few usable laser satellites within range, and might spot him too.
The maintenance hatch was not designed to be opened by human hands, but a simple instruction called one of the robots over, which inserted an outsize Allen key to disengage the locking mechanism. A slight puff of vapour blew out as the hatch hinged open, but that probably wasn’t station atmosphere but the result of fuel spillage. Summoning his five robots to follow him, Saul dropped inside and found himself in a narrow space alongside the huge stepper motor used for driving the turntable mechanism, powering a great cog above him which engaged with a massive toothed ring.
Skirting around this motor he found a tunnel leading to the distant space dock. Built to accommodate robots, it was also lined with fuel pipes from the silos there. As the last robot closed the hatch behind it, the lights went out, but he had two of the robots light up their fault-inspection lasers, and damp coherence, to illuminate his surroundings in lurid red. Ten minutes of propelling himself along the tunnel brought him to a point where many of the pipes diverged upwards to connect with the various silos located along the base of the docks above. However, other pipes ran ten metres further in, before curving upwards into the nearest docking pillar, there to connect to the pumps used to fuel space planes engaged in orbital duties.
Climbing up alongside these pipes brought him to an inspection point for human technicians. Here secondary pipes branched off to connect to the fuel pumps positioned immediately behind the hydraulic systems that extended concertinaed fuel hoses out to any plane currently docked. Saul opened the adjacent manual airlock and entered, summoning just one of his robots in with him. Once the lock had cycled, he opened the inner door and stepped into a maintenance area containing a spare pump, a variety of pipe and hydraulic fittings, along with some of the heavy-duty machinery required to install them. Here seemed as good a place as any to set things in motion as he meanwhile guided the remaining robots through the same airlock.
Saul delved deep into the station network, making no attempt now to conceal his presence. Seeking first to crack their control codes, he probed Smith’s remaining readerguns and robots. Smith reacted immediately, the shadowy presence of his mind thrashing like a hooked bloodworm before he started shoring up his defences. This was just what was needed for, whilst keeping the pressure on him, Saul slipped past Smith and into long-dormant portions of the station network, to gain access to a process only rarely called for up here.
On occasion a smelting plant required major maintenance that could not be conducted out there in space, and therefore it was winched back into its dock, furling its solar panels and burrowing into the station skin like the head of a tubeworm. He now set this process in motion for both plants, and watched as the folded panels withdrew into their soot-stained bodies. Under his feet he felt the station’s heavy thrumming as giant cable drums began to revolve, winding in kilometres of cable thicker in diameter than his thigh. It took a moment for Smith to realize what was going on, but instead of trying to stop this process he focused his attention on the cell block, and after a moment he spoke.
‘Saul,’ was all he said, his voice ghosting across the network.
‘You should have killed me,’ Saul replied.
‘You had not ceased to be of use to me.’ Now, probing began into the informational architecture that Saul was fortifying. ‘I am now puzzled as to why you feel the need to retract the smelting plants.’
‘I’m ensuring Messina has no place to land but on the space-plane docks themselves.’
‘Ah, so you recognize the dangers in Messina’s assumption of ultimate power, and are therefore prepared to ally yourself with me to ensure his defeat?’
Saul paused in the midst of checking the readings on the air sampler strapped about his wrist, but it took him just a second to realize that Smith had finally gone over the edge. No sane man could ever expect to make an ally out of someone he had subjected to inducement. Saul shook his head in disbelief and returned his attention to the sampler. The air was pure CO2, thin, and rapidly getting thinner, so he could not remove his VC helmet. This was not surprising because, as he understood it, airlocks like the one just behind him had been designed for some future era when the entire docks themselves could be pressurized – but now they remained airless.
‘I fully understand that at present Messina is a greater danger to me than you are,’ Saul replied carefully. ‘I also understand that, should he try to get his troops into Argus like Malden did, you probably still control enough long-range satellite lasers to burn them off the station’s surface.’
From the cam systems under Smith’s control, an image feed opened directly across into Tech Central itself. Saul quickly noticed that all the available seats were occupied, while Smith himself stood in front of the three major screens. Off to one side he could see Hannah bound to a chair, and clearly Smith must be routeing his voice through the intercom, because now she was looking up with interest.
‘And what other approaches might you suggest?’ Smith asked. ‘I would be interested to discover your unique perspective on the matter.’
A cracked and desperate mind would be easier to manipulate, Saul surmised, but it was also likely to spin out of control and head off in unpredictable directions.
‘I still control some resources,’ he replied, ‘but you’ll understand why I’m not keen to reveal what they are, or how I intend to use them. For the moment, however, I will cease any attempt to take readerguns or robots away from you.’ Saul halted his mental assault on these devices. ‘I would rather they were used against Messina than we render them useless by fighting over control of them.’ He paused, wondering how best to conclude this. ‘I’ll do what I can against Messina – but then I’m coming after you, Smith.’
Stepping away from the screens, Smith moved over to stand next to Hannah, pressing a hand down onto her shoulder. ‘Once I have fully re-established my position here, I certainly look forward to that encounter.’
Perfect. Smith had not looked beyond Saul’s explanation about the smelting plants, but his threat regarding Hannah was clear. Saul studied the scene further and assessed her position. When the steering thrusters turned the station round, the effect there would be negligible, but once the Traveller engine fired up, over half a gravity would surge through Tech Central horizontally. Her chances of surviving that, strapped in a chair as she was, he rated at about 70 per cent. He could do nothing about the uncertain 30 per cent, for if her head slammed into the consoles just to her right, she’d probably end up with a broken neck. Nevertheless, in her present position, he doubted she would resent him taking that chance.
‘Later, then,’ concluded Saul. ‘The first of Messina’s planes will be docking here within twenty minutes, and I’m sure you have plenty to do.’
The image feed cut off, though, unlike before, it now remained unblocked so Saul could seek it out whenever he wished. Instead he checked out other areas of the station, noting how Langstrom’s troops were scattered in squads of four throughout the lower section of the inner core, but far enough above the asteroid so that it was not right up against their backs and therefore blocking a retreat. Most of these four-man units controlled hefty machine guns and missile-launchers, though Langstrom himself had taken the controls of a weapon Saul now identified as Smith’s one EM tankbuster. Between them and the outer rim, robots were constantly on the move, laying anti-personnel mines activated by wires strung nearly invisibly between the structural beams.