Hannah gazed up towards the plant itself, silhouetted against the lit-up asteroid. A half-metre-wide ribbed pipe carrying the mercury flow extended down from this, well outside the path of the ore carrier. All along its length were reaction motors, computer controlled to keep it in position against any station or asteroid drift. Presently the flow rate measured at under ten tonnes an hour – and that wasn’t enough.
Hannah turned away from the porthole and continued along the corridors which, having to skirt an evacuated area of the outer rim, would eventually get her to that same airlock tube. She had tried to contact both Leeran and Pike but received no response. An attempt to question Le Roque on her concerns had elicited just a shrug and, ‘He knows what he’s doing.’ Now she felt she had to get some answers, and just retreating to her laboratory wasn’t an answer.
Eventually she reached the airlock tube and boarded the ore carrier. It jerked into motion once the airlock tube detached, and rose up towards the smelting plant. A hard vibration within the carrier as it rose impelled Hannah to grab hold of one of the handles on the wall to steady herself. She didn’t know if such a vibration was usual, never having travelled this route before. Twenty minutes later, she left the carrier compartment and ascended a tubeway taking her up to the control block. Even here that vibration persisted, and Hannah assumed it must be down to the processes they were currently employing.
She found Pike and Leeran inside. The former stood facing the inward windows that overlooked the interior of the plant, while the latter was working at a bank of screens that displayed various views of the asteroid.
‘Yes, I know,’ said Pike, without turning. ‘I just read your messages. At our present rate, the Scourge will be here before we’ve finished.’ Now he turned. ‘But that will change.’
‘How?’ asked Hannah, as she removed her helmet, feeling slightly uncomfortable in asking. She wasn’t in charge of Argus Station any more but, while browsing the station stats, she had found herself unable to ignore that the refining rate simply wasn’t fast enough, and that intended alterations to the process still wouldn’t speed it up sufficiently. It seemed that when you started taking responsibility for something, it was difficult to give it up.
‘The ovens aren’t anywhere near up to capacity yet,’ Pike replied, ‘but we’ll soon sort that out.’
‘As I understand it,’ said Hannah, ‘you’re about to send over another mining robot – the one that’s being transported up from underneath Tech Central right now.’
‘That’s true,’ replied Pike, almost dismissively.
‘So that will effectively double the rate,’ Hannah suggested, again making the mental calculations she had made already, just to confirm. ‘That’s still not enough, as we’ll only have three-quarters of the mercury we need before the Scourge arrives.’
‘Yes, but those are the only mining robots it’s feasible to use,’ said Pike.
Hannah just stared at him, appalled. How was it possible that she was here having to ask these questions? Why hadn’t Saul seen this and done something about it, rather than go gallivanting off into the Belt, as he had?
‘Is that all you can say?’ she asked.
‘He is merely stating the facts, Hannah.’ Saul’s voice issued from the PA speakers near to hand. ‘We could move one of the big mining robots out, but that would probably take us a week to achieve.’
‘Where are you?’ Hannah asked.
‘Just coming in to dock.’
‘So, tell me, how the hell are we going to get enough ore mined quickly enough?’
Saul simply said, ‘Show her, Pike.’
Pike gestured Hannah over and pointed into the plant’s interior. Extending along one wall below, an ore tube was feeding the distributor into a row of oblate furnaces. The distributor itself was a large rectangular container that divided up the ore and impelled it, by Archimedean screw, down into each furnace. The furnaces meanwhile had been disconnected from the usual processes they served in this area of the plant: the ceramic pipes and metal-foaming tanks, the carousels of moulds; the wire, bar stock and sheet-making machines. Instead, new pipes had been connected to the furnaces, leading to rotary pumps then to cylindrical purification columns. From these, further pipes entered a single large pump from which extended the half-metre-wide pipe she had seen outside.
‘There,’ said Pike, pointing upwards.
‘What am I looking at?’
‘The installation hatch is opening,’ he replied. ‘The interior is normally pressurized, so we had to make some adjustments to open it up to vacuum. Now it’s ready.’ He glanced at her. ‘Do you feel them?’
‘Feel what?’ Hannah asked, irritated.
‘The vibration.’
‘I thought that—’
Hannah now saw the big hatch opening, where Pike had pointed. It was just wide enough now for the first construction robot to come through, hauling a huge compressed-fibre sack. It attached this to the neck of a port in the upper surface of the distributor and, like a spider handling a silk-shrouded corpse in its web, squeezed the contents down into the distributor. By the time it detached the sack, another construction robot was attaching its own sack to yet another port, and had begun emptying it.
‘They started arriving just after you began heading up here,’ said Pike, gesturing back towards Leeran. ‘I thought you knew.’
Hannah turned to look at the other woman, who now sat back with her fingers interlaced behind her head and a smile on her face. The screen she was looking at displayed a view of the entire asteroid, now resembling a fallen apple covered with steel ants. Hannah at once understood that these vibrations were nothing to do with the usual processes conducted within the plant, but signified the arrival of Saul’s robot army – now diverted to the task of mining.
‘So everything is under control,’ she said.
Pike shrugged, and it was Saul who replied. ‘If the two little surprises I’ve left out there sufficiently slow down the Scourge, and if the drive works as predicted and doesn’t fry us with Hawking radiation, then our chances have significantly improved.’
A super-mind he might possess, Hannah decided, but he still needed to learn a little diplomacy.
Earth
The garden was now finished: water tinkled down an obsidian waterfall into a long pool two metres wide, which extended from one side of the erstwhile torture chamber to the other. An arched bridge crossed the centre of this pool, taking Serene from what she had called the jungle garden into her own little hideaway. Here, a Japanese pagoda shaded her from the output of the sun pipes above. Underneath it, she sat in a comfortable lounger, which could be turned by means of a ball control lodged in one arm to face any of the four big free-standing screens positioned amid the surrounding undergrowth.
All morning she had worked with her fold-across console and a small screen, checking reports, approving actions, sending queries, keeping her finger – as best she could – on the pulse of a busily functioning world. However, it was gratifying that her underlings were now handling most of the detail, and much less was getting flagged for her personal attention than before. It was possible for her to go for hours at a time now without having to respond to some query, and she utilized that extra time well, studying her world, flicking from one scene to another on her screens, trawling up data that was of special interest to her, life-affirming data. Sometimes she even managed to grab herself some hours of natural sleep.
The screen she was presently studying showed various views and data displays from the Mars Traveller construction station. Every now and again an image or a report would appear on one of the subdivided screen sections, a colour-coded marker up in one corner signifying its degree of importance. Generally all of these were low on the spectrum, and quite often blinked out again as soon as one of her staff began dealing with them. They would only be passed on to her if some major decision was required that directly affected the goals she had laid out. The commissioning of the station was going well. Already most of the fusion reactors were up and running, and fresh spaceship components were being manufactured. Admittedly there had been, thus far, nine hundred and sixty deaths in the process, but not one of those who had died was irreplaceable.