Lady Mac was accelerating away from the star at a twentieth of a gee, and curving round into a retrograde orbit. It was the vector which would give the magnetic arrays the best possible coverage of the disk. Unfortunately, it increased the probability of collision by an order of magnitude. So far, the radar had only detected standard motes of interplanetary dust, but Marcus insisted there were always two crew on duty monitoring the local environment.
«Time for another launch,» he announced.
Wai datavised the flight computer to run a final systems diagnostic through the array satellite. «I notice Jorge isn't here again,» she said sardonically. «I wonder why that is?»
Jorge Leon was the second companion Antonio had brought with him on the flight. He'd been introduced to the crew as a first-class hardware technician, who had supervised the construction of the magnetic array satellites. As introverted as Antonio was outgoing, he'd shown remarkably little interest in the arrays so far. It was Victoria who'd familiarized the crew with the systems they were deploying.
«We should bung him in our medical scanner,» Karl suggested cheerfully. «Be interesting to see what's inside him. Bet you'd find a whole load of weapon implants.»
«Great idea,» Roman said. «You ask him. He gives me the creeps.»
«Yeah, Katherine, explain that away,» Karl said. «If there's no gold in the disc, how come they brought a contract killer along to make sure we don't fly off with their share?»
«Karl!» Marcus warned. «That's enough.» He gave the open floor hatch a pointed look. «Now let's get the array launched, please.»
Karl's face reddened as he began establishing a tracking link between the starship's communication system and the array satellite's transponder.
«Satellite systems on-line,» Wai reported. «Launch when ready.»
Marcus datavised the flight computer to retract the satellite's hold-down latches. An induction rail shot it clear of the ship. Ion thrusters flared, refining its trajectory as it headed down towards the squally apricot surface of the disc.
Victoria had designed the satellites to skim five thousand kilometres above the nomadic particles. When their operational altitude was established they would spin up and start to reel out twenty-five gossamer-thin optical fibres. Rotation insured the fibres remained straight, forming a spoke array parallel to the disc. Each fibre was a hundred and fifty kilometres long, and coated in a reflective, magnetically sensitive film.
As the disc particles were still within the star's magnetosphere, every one of them generated a tiny wake as it traversed the flux lines. It was that wake which resonated the magnetically sensitive film, producing fluctuations in the reflectivity. By bouncing a laser pulse down the fibre and measuring the distortions inflicted by the film, it was possible to build up an image of the magnetic waves writhing chaotically through the disc. With the correct discrimination programs, the origin of each wave could be determined.
The amount of data streaming back into the Lady Macbeth from the array satellites was colossal. One satellite array could cover an area of two hundred and fifty thousand square kilometres, and Antonio Ribeiro had persuaded the Sonora Autonomy Crusade to pay for fifteen. It was a huge gamble, and the responsibility was his alone. Forty hours after the first satellite was deployed, the strain of that responsibility was beginning to show. He hadn't slept since the first satellite launch, choosing to stay in the cabin which Marcus Calvert had assigned to them, and where they'd set up their network of analysis processors. Forty hours of his mind being flooded with near-incomprehensible neuroiconic displays. Forty hours spent fingering his silver crucifix and praying.
The medical monitor program running in his neural nanonics was flashing up fatigue toxin cautions, and warning him of impending dehydration. So far he'd ignored them, telling himself discovery would occur any minute now. In his heart, Antonio had been hoping they would find what they wanted in the first five hours.
His neural nanonics informed him the analysis network was focusing on the mass/density ratio of a three-kilometre particle exposed by satellite seven. The processors began a more detailed interrogation of the raw data.
«What is it?» Antonio demanded. His eyes fluttered open to glance at Victoria, who was resting lightly on one of the cabin's flatchairs.
«Interesting,» she murmured. «It appears to be a cassiterite ore. The planetoids definitely had tin.»
«Shit!» He thumped his fist into the chair's padding, only to feel the restraint straps tighten against his chest, preventing him from sailing free. «I don't fucking care about tin. That's not what we're here for.»
«I am aware of that.» Her eyes were open, staring at him with a mixture of contempt and anger.
«Sure, sure,» he mumbled. «Holy Mother, you'd expect us to find some by now.»
«Careful,» she datavised. «Remember this damn ship has internal sensors.»
«I know how to follow elementary security procedures,» he datavised back.
«Yes. But you're tired. That's when errors creep in.»
«I'm not that tired. Shit, I expected results by now; some progress.»
«We have had some very positive results, Antonio. The arrays have found three separate deposits of pitchblende.»
«Yeah, in hundred kilogram lumps. We need more than that, a lot more.»
«You're missing the point. We've proved it exists here; that's a stupendous discovery. Finding it in quantity is just a matter of time.»
«This isn't some fucking astrological experiment you're running for that university which threw you out. We're on an assignment for the cause. And we cannot go back emptyhanded. Got that? Cannot.»
«Astrophysics.»
«What?»
«You said astrological, that's fortune-telling.»
«Yeah? You want I should take a guess at how much future you're going to have if we don't find what we need out here?»
«For Christ's sake, Antonio,» she said out loud. «Go and get some sleep.»
«Maybe.» He scratched the side of his head, unhappy with how limp and oily his hair had become. A vapour shower was something else he hadn't had for a while. «I'll get Jorge in here to help you monitor the results.»
«Great.» Her eyes closed again.
Antonio deactivated his flatchair's restraint straps. He hadn't seen much of Jorge on the flight. Nobody had. The man kept strictly to himself in his small cabin. The Crusade's council wanted him on board to ensure the crew's continuing cooperation once they realized there was no gold. It was Antonio who had suggested the arrangement; what bothered him was the orders Jorge had received concerning himself should things go wrong.
«Hold it.» Victoria raised her hand. «This is a really weird one.»
Antonio tapped his feet on a stikpad to steady himself. His neural nanonics accessed the analysis network again. Satellite eleven had located a particle with an impossible mass/density ratio; it also had its own magnetic field, a very complex one. «Holy Mother, what is that? Is there another ship here?»
«No, it's too big for a ship. Some kind of station, I suppose. But what's it doing in the disc?»
«Refining ore?» he said with a strong twist of irony.
«I doubt it.»
«OK. So forget it.»
«You are joking.»
«No. If it doesn't affect us, it doesn't concern us.»
«Jesus, Antonio; if I didn't know you were born rich I'd be frightened by how stupid you were.»
«Be careful, Victoria, my dear. Very careful.»
«Listen, there's two options. One, it's some kind of commercial operation; which must be illegal because nobody has filed for industrial development rights.» She gave him a significant look.
«You think they're mining pitchblende?» he datavised.