Though this was the worst affected, two of the other engines had similarly lost the inert gas from their foamed-metal casings. Removing damaging oxygen and reintroducing inert gas into its open-cell structure was not really the most viable solution, so something else would now be required. As she investigated the possibilities, Orlandine admitted to herself that the likelihood of such leakage had almost certainly been covered somewhere in the design of the war runcible, but having an expected lifespan of months had it ever been deployed in combat, that hadn’t really been relevant.
‘Over the years the oxygen caused corrosion within the foamed metal, then induction from the S-con cables embedded in the casing kept it expanding and contracting, causing it to break up internally. The broken metal and its oxides, vibrating at the frequency of the alternating currents passing through the cables to keep the U-tech functional, then acted continually like a grinder. Eventually this grinding action broke through the insulation of an S-con cable, with the result you see.’
‘Nothing quite like twenty-twenty hindsight,’ said Knobbler.
This comment irritated Orlandine enormously, but she knew her irritation stemmed from Knobbler not openly acknowledging her analysis of the accident. It occurred to her then that seconding old war drones like Knobbler to her cause would certainly prevent her developing a god complex.
‘All right,’ she said. ‘I… we just didn’t have time to sort this out. We had to get away from Polity interference, and we had to grab that cargo runcible. It was a risk we simply had to take.’
‘But now we’ve lost an engine,’ Knobbler observed.
‘That’s not a great problem.’
‘It’s not?’
‘No, given time I could build us another one. However, I don’t intend to do that. I’ll just extend the coverage of the other four engines to encompass the entire runcible.’
‘Right.’
Orlandine now turned her attention to the drones Cutter, Slack and Stinger who, having played their part in putting out the fire, were on their way to her ship to carry out the next stage of this operation. It would take them a few minutes to board — time enough for her to set in motion some repairs aboard the war runcible.
From caches distributed throughout the mycelial network in the war runcible — bladders and sacs growing in long-unoccupied human habitations or in wall cavities, which had been gathering to themselves stores of pure elements and useful compounds — she transported to the engine rooms all the materials she required. The mycelia around the four engine casings she set to sucking air from the bubble metal, and microwelding all those little exterior cracks in it, while simultaneously nano-injecting her selected remedy. When this operation was finished, some hours hence, the open cell bubbles within the metal would be full of a form of thermoplastic which would both act as an insulator and prevent further induction-caused grinding. She was rather proud of this solution, but decided not to try bragging about it to Knobbler.
Cutter, Slack and Stinger entered Heliotrope through the cargo lock, since they would all have found the human airlock a little narrow for them. Once they were safely aboard, Orlandine swiftly undocked Heliotrope and dropped it away from the runcible.
‘Knobbler, Bludgeon,’ she said, ‘I want you to check the design specs of that war runcible, as almost certainly there’ll be other age-related problems we’ll have to deal with. Though the predicted lifespan of the entire runcible was short, I imagine obsolescence spans will be recorded for individual components.’
‘Sure thing, boss,’ Knobbler replied, while Bludgeon’s reply was merely a code acknowledgement. Of course Orlandine did not have to ‘imagine’ about the obsolescence spans, since she was confident they were there in the specs. Despite its age and present faults, the war runcible had been designed and built by AIs, after all.
‘Now, are you ready back there?’ she enquired of the three drones aboard.
‘We were born ready,’ Cutter replied.
Orlandine didn’t bother pointing out to him that she was the only one aboard who had been ‘born’, and even that was stretching the definition a bit, since she had been ‘born’ at two months gestation and then moved into a haiman re-engineering amniotic tank.
A suitable distance from the runcible she brought Heliotrope to a relative full stop and again opened the cargo doors. Through hull cameras she observed Cutter scrambling out and heading along to the base of Heliotrope’s claw. Even from within the sphere she heard the busy clattering of his feet. Once in position, the praying mantis drone extruded tools from his various sharp limbs and set to work. Further back she observed the other two drones begin to haul out components of a framework constructed to hold the cargo runcible stolen from the Clarence Bishop.
‘Okay,’ said Cutter, ‘that’s the stops off.’
Orlandine knew that already, having received an error message the moment Cutter removed the steel buffers that prevented Heliotrope’s pincer claw from opening too wide.
‘Good work,’ she said, then ordered the claw to open fully.
Cutter reached out to grip one of the claws, and hung there as the two twenty-foot-long pieces of curved ceramal opened out to their buffer point, then beyond, finally grinding to a halt at the limit of their hydraulics. The two claws were now spread so they jutted at approximately ninety degrees to the length of Heliotrope itself. Cutter held station as the other two drones scuttled out, then returned to the base of the claws to ignite arc-light from an extruded welder. Stability was required here, above all, so the drone was now welding the claws in this position, where they would remain immovable.
The two other drones, one of them an iron scorpion and the other resembling two spiders sharing the same abdomen, like nightmare arachnoid Siamese twins, began working with bewildering speed to assemble the prefabricated framework. From the anchor points of the extended jaws of the claw they first bolted together a heavy triangular frame, from the comers of which they extended thin but rigid struts over twenty yards long. Alternately moving out along these struts they affixed cross-braces until reaching the strut ends, where they bolted into place a thicker triangular frame. Seeing it there, Orlandine thought the double-spider drone entirely appropriate for the task, for the finished structure bore a passing resemblance to a spider’s web.
While this was being built, Cutter returned to the hold to bring out the first of the three runcible ‘horn’ assemblies that would be mounted on the outer triangular framework. These items Orlandine had redesigned so that, once the Skaidon warp formed like the meniscus of a bubble between them, they could twist over, enclosing their forward faces underneath that same meniscus. It wasn’t a particularly unusual redesign, and in fact had been used before — when the mechanisms of the runcible itself needed to be protected from what was being pushed through its gate. However, Orlandine intended to use it this time in a particularly unusual way. As Cutter headed out to fix the assembly into place, the other drones returned to the hold for the rest of the runcible components: the buffers, the field-control systems and hard-field projectors that would push the horns themselves out of their assemblies to create whatever aperture — within limits — might be required. And, of course, the masses of heavily insulated optics that would link this stolen cargo runcible to its controlling AI: Bludgeon.
That particular drone had gained much experience in controlling U-space engines of the larger war runcible and, from that massive device’s computer memory, had been learning how to operate runcibles in general as well. When everything was set up, Bludgeon would take control of Heliotrope, and of the cargo runcible it would be deploying. That, of course, left a vacancy aboard the war runcible itself. A vacancy Orlandine herself intended to fill after her rendezvous at the destination ahead, whereupon she would set the huge device on its journey towards Earth.