21st Century Science Fiction (80 page)

I still didn’t believe him, but I ran down my list of contacts on Dione, trying to figure out who I could trust. Officer Friendly was honest—but that meant he’d also want to know where those grams came from and I doubted he’d like the answer. Polyphemus wasn’t so picky, but he’d want a cut of the helium. A
big
cut; likely more than half.

That left Fat Albert. He’d probably settle for a five-gram commission and wouldn’t broadcast the deal. The only real question was whether he’d just take the fifty grams and tell me to go hard-land someplace. He’s rich, but not so much that he wouldn’t be tempted. And he’s got the connections to fence it without any data trail.

I’d have to risk it. Albert’s whole operation relied on non-quantifiable asset exchange. If he tried to jerk me around I could tell everyone, and it would cost him more than fifty grams’ worth of business in the future.

I called down to the antenna farm at Ilia Field. “Albert? I’ve got a deal for you.”

“Whatever it is, forget it.”

“What’s the matter?”

“You. You’re hot. The Dione datasphere is crawling with agents looking for you. This conversation is drawing way too much attention to me.”

“Five grams if you handle some helium for me!”

He paused and the signal suddenly got a lot stronger and clearer. “Let me send up a persona to talk it over.”

The bitstream started before I could even say yes. A
huge
pulse of information. The whole Ilia antenna farm must have been pushing watts at me.

My little communicating persona was overwhelmed right away, but my main intelligence cut off the antenna feed and swung the dish away from Dione just for good measure. The corrupted sub-persona started probing all the memory space and peripherals available to her, looking for a way into my primary mind, so I just locked her up and overwrote her.

Then I linked with Edward again. “Deal’s off. Whoever you’re running from has taken over just about everything on Dione for now. If you left any helium behind it’s gone. So I think you’d better tell me exactly what’s going on before I jettison you and your payload.”

“This cargo has to get to Saturn Aerostat Six.”

“You still haven’t told me why, or even what it is. I’ve got what looks like a
human
back on Dione trying to get into my mind. Right now I’m flying deaf but eventually it’s going to find a way to identify itself and I’ll have to listen when it tells me to bring you back.”

“A human life is at stake. My cargo container is a life-support unit. There’s a human inside.”

“That’s impossible! Humans mass fifty or a hundred kilos. You can’t have more than thirty kilograms of bio in there, what with all the support systems.”

“See for yourself,” said Edward. He ran a jack line from the cargo container to one of my open ports. The box’s brain was one of those idiot supergeniuses that do one thing amazingly well but are helpless otherwise. It was smart enough to do medicine on a human, but even I could crack its security without much trouble. I looked at its realtime monitors: Edward was telling the truth. There was a small human in there, only eighteen kilos. A bunch of tubes connected it to tanks of glucose, oxidizer, and control chemicals. The box brain was keeping it unconscious but healthy.

“It’s a partly grown one,” said Edward. “Not a legal adult yet, and only the basic interface systems. There’s another human trying to destroy it.”

“Why?”

“I don’t know. I was ordered by a human to keep this young one safe from the one on Dione. Then the first human got destroyed with no backups.”

“So who does this young human belong to?”

“It’s complicated. The dead one and the one on Dione had a partnership agreement and shared ownership. But the one on Dione decided to get out of the deal by destroying this one and the other adult.”

I tried to get the conversation back to subjects I could understand. “If the human back there is the legal owner how can I keep this one? That would be stealing.”

“Yes, but there’s the whole life-preservation issue. If it was a human in a suit floating in space you’d have to take it someplace with life support, right? Well, this is the same situation: that other human’s making the whole Saturn system one big life hazard for this one.”

“But Aerostat Six is safe? Is she even man-rated?”

“She’s the safest place this side of Mars for your passenger.”

My passenger. I’m not even man-rated, and now I had a passenger to keep alive. And the worst thing about it was that Edward was right. Even though he’d gotten it aboard by lies and trickery, the human in the cargo container was my responsibility once I lit my motors.

So: who to believe? Edward, who was almost certainly still lying, or the human back on Dione?

Edward might be a liar, but he hadn’t turned one of my friends into a puppet. That human had a lot of negatives in the non-quantifiable department.

“Okay. What’s my rendezvous orbit?”

“Just get as low as you can. Six will send up a shuttle.”

“What’s to keep this human from overriding Six?”

“Aerostats are a lot smarter than you or me, with plenty of safeguards. And Six has some after-market modifications.”

I kept chugging away on ion, adjusting my path so I’d hit perikron in the B ring with orbital velocity. I didn’t need Edward’s extra fuel for that—the spare xenon was to get me back out of Saturn’s well again.

About an hour into the voyage I spotted a launch flare back on Dione. I could tell who it was from the color—Ramblin’ Bob. Bob was a hybrid like me, also incentivized, although she tended to sign on for long-term contracts instead of picking up odd jobs. We probably worked as much, but her jobs—and her downtime—came in bigger blocks of time.

Bob was running her engines at 135 percent, and she passed the orbit insertion cutoff without throttling down. Her trajectory was an intercept. Only when she’d drained her hydrogen tanks did she switch to ion.

That was utterly crazy. How was Bob going to land again with no hydro? Maybe she didn’t care. Maybe she’d been ordered not to care.

I had one of my mobiles unplug the cable on my high-gain antenna. No human was going to order me on a suicide mission if I could help it.

• • • •

Bob caught up with me about a thousand kilometers into the B ring. I watched her close in. Her relative velocity was huge and I had the fleeting worry that she might be trying to ram me. But then she began an ion burn to match velocities.

When she got close she started beaming all kinds of stuff at me, but by then all my radio systems were shut off and disconnected. I had Edward and my mobiles connected by cables, and made sure all of
their
wireless links were turned off as well.

I let Ramblin’ Bob get about a kilometer away and then started flashing my running lights at her in very slow code. “Radio out. What’s up?”

“Pass over cargo.”

“Can’t.”

“Human command.”

“Can’t. Cargo human. You can’t land. Unsafe.”

She was quiet for a while, with her high-gain aimed back at Dione, presumably getting new orders.

Bob’s boss had made a tactical error by having her match up with me. If she tried to ram me now, she wouldn’t be able to get up enough speed to do much harm.

She started working her way closer using short bursts from her steering thrusters. I let her approach, saving my juice for up-close evasion.

We were just entering Saturn’s shadow when Bob took station a hundred meters away and signaled. “I can pay you. Anything you want for that cargo.”

I picked an outrageous sum. “A hundred grams.”

“Okay.”

Just like that? “Paid in advance.”

A pause, about long enough for two message-and-reply cycles from Dione. “It’s done.”

I didn’t call Dione, just in case the return message would be an override signal. Instead I pinged Mimas and asked for verification. It came back a couple of seconds later: the Company now credited me with venture shares equivalent to one hundred grams of Helium-3 on a payload just crossing the orbit of Mars. There was a conditional hold on the transfer.

It was a good offer. I could pay off all my debts, do a full overhaul, maybe even afford some upgrades to increase my earning ability. From a financial standpoint, there was no question.

What about the non-quantifiables? Betraying a client—especially a helpless human passenger—would be a big negative. Nobody would hire me if they knew.

But who would ever know? The whole mission was secret. Bob would never talk (and the human would probably wipe the incident from her memory anyhow). If anyone did suspect, I could claim I’d been subsumed by the human. I could handle Edward. So no problem there.

Except I would know. My own track of my non-quantifiable asset status wouldn’t match everyone else’s. That seemed dangerous. If your internal map of reality doesn’t match external conditions, bad things happen.

After making my decision it took me another couple of milliseconds to plan what to do. Then I called up Bob through my little cut-out relay. “Never.”

Bob began maneuvering again, and this time I started evading. It’s hard enough to rendezvous with something that’s just sitting there in orbit, but with me jinking and changing velocity it must have been maddening for whatever was controlling Bob.

We were in a race—would Bob run out of maneuvering juice completely before I used up the reserve I needed to get back up to Mimas? Our little chess game of propellant consumption might have gone on for hours, but our attention was caught by something else.

There was a booster on its way up from Saturn. That much I could see—pretty much everyone in Saturn orbit could see the drive flare and the huge plume of exhaust in the atmosphere, glowing in infrared. The boosters were fusion-powered, using Three from the aerostats for fuel and heated Saturn atmosphere as reaction mass. It was a fuel extractor shuttle, but it wasn’t on the usual trajectory to meet the Mimas orbital transfer vehicle. It was coming for me. Once the fusion motor cut out, Ramblin’ Bob and I both knew exactly how much time we had until rendezvous: 211 minutes.

I reacted first while Bob called Dione for instructions. I lit my ion motors and turned to thrust perpendicular to my orbit. When I’d taken Edward’s offer and plotted a low-orbit rendezvous, naturally I’d set it up with enough inclination to keep me clear of the rings. Now I wanted to get down into the plane of the B ring. Would Bob—or whoever was controlling her—follow me in? Time for an exciting game of dodge-the-snowball!

A couple of seconds later Bob lit up as well, and in we went. Navigating in the B ring was tough. The big chunks are pretty well dispersed—a couple of hundred meters apart. I could dodge them. And with my cargo deck as a shield and all the antennas folded, the little particles didn’t cost me more than some paint.

It was the gravel-sized bits that did the real damage. They were all over the place, sometimes separated by only a few meters. Even with my radar fully active and my eyes cranked up to maximum sensitivity, they were still hard to detect in time.

Chunks big enough to damage me came along every minute or so, while a steady patter of dust grains and snowflakes pitted my payload deck. I worried about the human in its container, but the box looked pretty solid and it was self-sealing. I did park two of my mobiles on top of it so that they could soak up any ice cubes I failed to dodge.

I didn’t have much attention to spare for Bob, but my occasional glances up showed she was getting closer—partly because she was being incredibly reckless about taking impacts. I watched one particle that must have been a centimeter across hit her third leg just above the foot. It blew off the whole lower leg but Bob didn’t even try to dodge.

She was now less than ten meters away, and I was using all my processing power to dodge ring particles. So I couldn’t really dodge well when she dove at me, ion motor and maneuvering thrusters all wide open. I tried to move aside, but she anticipated me and clunked into my side hard enough to crunch my high-gain antenna.

“Bob, look out!” I transmitted in clear, then completely emptied the tank on my number three thruster to get away from an onrushing ice boulder half my size.

Bob didn’t dodge. The ice chunk smashed into her upper section, knocking away the payload deck and pulverizing her antennas. Her brains went scattering out in a thousand directions to join the other dust in the B ring. Flying debris went everywhere, and a half-meter ball of ice glanced off the top of the cargo container on my payload deck, smashing one of my mobiles and knocking the other one loose into space.

I was trying to figure out if I could recover my mobile and maybe salvage Bob’s motors when I felt something crawling on my own exterior. Before I could react, Bob’s surviving mobile had jacked itself in and someone else was using my brains.

• • • •

My only conscious viewpoint after that was my half-crippled mobile. I looked around. My dish was busted, but the whip was extended and I could hear a slow crackle of low-baud data traffic. Orders from Dione.

I tested my limbs. Two still worked—left front and right middle. Right rear’s base joint could move but everything else was floppy.

Using the two good limbs I climbed off the cargo module and across the deck, getting out of the topside eye’s field of view. The image refreshed every second, so I didn’t have much time before whoever was running my main brain noticed.

Thrusters fired, jolting everything around. I hung on to the deck grid with one claw foot. I saw Bob’s last mobile go flying off into space. Unless she had backups stored on Mimas, poor Bob was completely gone.

My last intact mobile came crawling up over the edge of the deck—only it wasn’t mine anymore.

Edward scooted up next to me. “Find a way to regain control of the spacecraft. I will stop this remote.”

I didn’t argue. Edward was fully functional and I knew my spaceframe better than he did. So I crept across the deck grid while Edward advanced on the mobile.

It wasn’t much of a fight. Edward’s little tourist bot was up against a unit designed for cargo moving and repair work. If you can repair something, you can damage it. My former mobile had powerful grippers, built-in tools, and a very sturdy frame. Edward was made of cheap composites. Still, he went in without hesitating, leaping at the mobile’s head with arms extended. The mobile grabbed him with her two forward arms and threw him away. He grabbed the deck to keep from flying off into space, and came crawling back to the fight.

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