Harwood gave an indifferent shrug. «So you say. But my hypothetical government already has a small stake in the foreign factory it wants to take into national ownership. That changes the entire legal ball game; the whole concept of ownership and rights becomes far more ambiguous.»

«Ah!» I clicked my fingers as the full realization hit me. «You're going to engineer a leveraged buyout from the existing shareholders, and probably try to oust the existing board members as well. No wonder you need all that money.» I stopped, recalling the briefing files I'd studied on the JSKP. «But even that can't be enough. You only have a few billion available. JSKP is a multi-trillion-wattdollar venture; it won't break even for another fifty years.»

«No government on Earth is going to disrupt the flow of goods from this hypothetical nationalized factory. They can't afford to, the product it manufactures is unique and extraordinarily valuable. Ultimately, the courts and the financial community will permit this proposed managerial restructuring, especially as full compensation will be paid. Nobody is trying to cheat anyone out of anything. A large proportion of the money which Penny and other philanthropists have pledged to this hypothetical government will be spent on legal battles; which are shaping up to be very violent and depressingly prolonged.»

«Yes, I see now.» I stood up. «Well, providing I can verify this hypothesis , I think you and the other trustees can be removed from my suspect list. Thank you for your time.»

Harwood lumbered to his feet. «I hope you find Penny's killer soon, Chief Parfitt.»

«I'll do my best.»

«Yeah, I guess so.» His expression turned confidently superior. «But don't count on having too much time. You might just find you ain't gonna be here for very much longer.»

I stopped in the open door, and gave him a genuinely pitying look. «Do you really think that Boston won't need a professional police force if you ever do manage to form a government here? If so, you're more of a daydreaming fool than I thought.»

Pieter Zernov was a lot more cordial than Harwood; but then we'd got to know each other quite well on the Ithilien . A modest man, quietly intelligent, who kept most of his opinions to himself; but when he did talk on a subject which interested him he was both coherent and well informed. It was his nomination as a trustee which made me inclined to believe Harwood's explanation about what Boston intended to do with the money. I trusted Pieter, mainly because he was one person who couldn't have killed Penny. The way it looked at the moment, the murderer had to have been in the habitat for at least a couple days prior to the murder.

A time when Pieter was on the Ithilien with me. Good alibi.

I found him in the JSKP's Biotechnology Division headquarters, supervising Ararat's germination.

«It ought to be Penny doing this,» he said mournfully. «She put in so much work on Ararat, especially after her accident. It's a tremendous improvement on Eden and Pallas.»

We were standing at the back of a large control centre; five long rows of consoles were arrayed in front of us, each with technicians scanning displays and issuing streams of orders to their equipment. Big holoscreens were fixed up around the walls, each showing a different view of Ararat as the large seed floated fifteen kilometres distant from Eden. The foam which protected it during the flight from the O'Neill Halo had been stripped away, allowing the base to be mated to a large support module.

«It looks like an old-style oil refinery,» I said.

«Not a bad guess,» Pieter said. «The tanks all hold hydrocarbon compounds. We'll feed them into the seed over the next two months. Then if we're happy that the germination is progressing normally, the whole thing gets shifted to its permanent orbital location, leading Eden by a thousand kilometres. We have a suitable mineral-rich rock there waiting for it.»

«And Ararat will just start eating it?»

«Not quite, we have to process the raw material it consumes for a further nine months, until its own absorption and digestion organs have developed. After that it'll be attached directly onto the rock. We are hoping that the next generation habitats are going to be able to ingest minerals straight out of the ore right from the start.»

«From tiny acorns,» I murmured.

«Quite. Although, this isn't one unified seed like you have for trees. Habitat seeds are multisymbiotic constructs; we don't know how to sequence the blueprint for an entire habitat into a single strand of DNA. Not yet, anyway. And, regrettably, biotechnology research is slowing down on Earth, there's too much association with affinity. That's why Penny was so keen to move her company out here, where she could work without interference.»

«Speaking of which . . .»

He bowed his head. «Yes, I know. Her will.»

«If you could just confirm what Antony Harwood told me.»

«Oh, Antony. You shook him up rather badly, you know. He's not used to being treated like that. His employees are a great deal more respectful.»

«You were hooked in?»

«Most of us were.»

I found I quite liked that idea, silent witnesses to Mr Front knuckling under at the first touch of pressure. Most unprofessional, Harvey. «The will,» I prompted.

«Of course. What Antony told you is more or less true. The money will be channelled into fighting legal cases on Earth. But we're aiming for more than just a leveraged buyout, that would simply entail replacing the current JSKP board members with our own proxies. Boston wants the He3 mining industry to be owned collectively by Eden's residents. We're prepared to purchase every share in the enterprise, even though it will take decades, maybe even a century, to pay off the debt. If Eden's independence is to be anything other than a token, we must be in complete control of our own destiny.»

«Thank you.» I could sense how much it hurt him to talk about it, especially to someone like me. Yet he was proud, too. When he talked of «Boston» and «us», I could see he was totally committed to the ideal. What a strange umbrella organization it was; you could hardly find two more disparate people than Pieter Zernov and Antony Harwood.

«I'm rather honoured Penny named me,» he said. «I hope I live up to her expectations. Perhaps she wanted one moderate voice to be heard. I do tend to feel slightly out of place amongst all these millionaire power players. Really, I'm just a biotechnology professor from Moscow University on a three-year sabbatical with the JSKP. Think of that, a Muscovite living in a tropical climate. My skin peels constantly and I get headaches from the axial light-tube's brightness.»

«Will you be going back?»

He gave me a long look, then shook his head ponderously. «I don't think so. There is a lot of work to be done here, whatever the outcome. Even the JSKP has offered me a permanent contract. But I would like to teach again some day.»

«What's the appeal, Pieter? I mean, does the composition of the JSKP board membership really make that much difference? People here at Jupiter are still going to live and work in the same conditions. Or are you that committed to the old collective ideal?»

«You ask this of a Russian, after all we've been through? No, it's more than a blind grasp for collectivism in the name of workers' liberation. Jupiter offers us a unique opportunity; there are so many resources out here, so much energy, if it can be harvested properly we can build a very special culture. A culture which thanks to affinity will be very different from anything which has gone before. That chance to do something new happens so rarely in human history; which is why I support the Boston group. The possibility, the fragile hope, cannot be allowed to wither; any inaction on my part would be criminal, I could never live with the guilt. I told you the next generation of habitats will be able to ingest minerals right away; but they are also capable of much, much more. They will be able to synthesize food in specialist glands, feed their entire population at no cost, with no machinery to harvest or prepare or freeze. How wonderful that will be, how miraculous. The polyp can be grown into houses, into cathedrals if you want. And our children are already showing us how innately kind and decent people can be when they grow up sharing their thoughts. You see, Harvey? There is so much potential for new styles of life here. And when you combine it with the sound economic foundation of the He3 mining, the possibilities become truly limitless. Biotechnology and super-engineering combining synergistically, in a way they have never been allowed to do back on Earth. Even the O'Neill Halo suffers limits imposed by fools like the Pope, and restrictions issued by its own jealous population, fearful of changing the status quo, of letting in the masses. That would not happen here, Harvey, out here we can expand almost without limit. This is the frontier we have lacked for so long, a frontier for both the physical and spiritual sides of the human race.»

Despite myself (I should say my official self), I couldn't help feeling a strong admiration for Boston and its goals. There's something darkly appealing about valiant underdogs going up against those kind of odds. And don't be fooled into thinking anything else, the odds were huge , the corporations wielded an immense amount of power, most of it unchecked. International courts could be bought from their petty-cash funds. It started me thinking again about the possibility that Penny Maowkavitz was deliberately eliminated. Her death, particularly now, was terribly convenient for JSKP.

Pieter had been right about one thing, though, Eden was a special entity; the nature of the society which was struggling to emerge out here was as near perfect as I was ever likely to see. Its people deserved a chance. One where they weren't squeezed by the JSKP board to maximize profits at the expense of everything else.

«You talk a great deal of sense,» I told him ruefully.

His meaty hand gripped my shoulder, squeezing fondly. «Harvey, what you said to Antony came as a surprise to many of us. We were expecting the JSKP to appoint someone . . . shall we say, more dogmatic as Chief of Police. I would just like to say that Antony does not have a deciding vote, we are after all attempting to build an egalitarian democracy. So for what it's worth, we welcome anyone who wishes to stay and do an honest day's work. Because unfortunately I suspect you were right; people are going to need policemen for a long time to come. And I know you are a good policeman, Harvey.»

I made the effort to get home for lunch. I don't think I'd spent more than a couple of hours with the twins since we arrived.

We ate at a big oval table in the kitchen, with the patio doors wide open, allowing a gentle breeze to swim through the room. There were no servitor chimps in sight. Jocelyn must have prepared the food herself. I didn't ask.

Nathaniel and Nicolette both had damp hair. «We've been swimming in the circumfluous lake at the southern endcap,» Nathaniel told me eagerly. «We caught a monorail tram down to a water sports centre in one of the coves. They've got these huge slides, and waterfalls where the filter organs vent out through the endcap cliff, and jetskis. It's great, Dad. Jesse helped us take out a full membership.»

I frowned, and glanced up at Jocelyn. «I thought they were due in school.»

«Dad,» Nicolette protested.

«Next week,» Jocelyn said. «They start on Monday.»

«Good. Who's Jesse?»

«Friend of mine,» Nathaniel said. «I met him at the day club yesterday. I like the people here; they're a lot easier going than back in the arcology. They all know who we are, but they didn't give us a hard time about it.»

«Why should they?»

«Because we're a security chief's children,» Nicolette said. I think she learnt that mildly exasperated tone from me. «It didn't make us real popular back in the Delph arcology.»

«You never told me that.»

She made a show of licking salad cream off her fork. «When did you ask?»

«Oh, of course, I'm a parent. I'm in the wrong. I'm always in the wrong.»

Her whole face lit up in a smile. For the first time I realized she had freckles.

«Of course you are, Daddy, but we make allowances. By the way, can I keep a parrot, please? Some of the red parakeets I've seen here are really beautiful, I think they must be gene-adapted to have plumage like that, they look like flying rainbows. There's a pet shop in the plaza just down the road which sells the eggs. Ever so cheap.»

I coughed on my lettuce leaf.

«No,» Jocelyn said.

«Oh, Mum, it wouldn't be affinity bonded. A proper pet.»

«No.»

Nicolette caught my eye and screwed her face up.

«How's the murder case coming on?» Nathaniel asked. «Everyone at the lake was talking about it.»

«Were they, now?»

«Yes. Everyone says Maowkavitz was an independence rebel, and the JSKP had her killed.»

«Is that right, Dad?» Nicolette looked at me eagerly.

Jocelyn had stopped eating, also focusing on me.

I toyed with some of the chicken on my plate. «No. At least, not all of it. Maowkavitz was part of a group discussing independence for Eden; people have been talking about that for years. But the company didn't kill her. They've had plenty of opportunities during the last few years to eliminate her if they wanted to, and make it seem like an accident. She was back on Earth eighteen months ago, if the JSKP board wanted her dead, they would've had it done then, and nobody would have questioned it. Her very public murder up here is the last thing they need. For a start, they're bound to be considered as prime suspects, by public rumour if not my department. It will inevitably make more people sympathetic to her cause.»

«Have you got a suspect, then?» Nathaniel asked.

«Not yet. But the method indicates that it's just one person, acting alone. There was a large amount of very secretive preparation involved. It has to be someone who's clever, above-average intelligence, familiar with Eden's biotechnology structure, and also the cybersystems, we think. Unfortunately that includes about half of the population. But the murderer must have an obsessive personality as well, which isn't so common. Then there's the risk to consider; even with the method they came up with—which admittedly is very smart—there was still a big chance of discovery. Whoever did it was prepared to take that risk. This is one very cool customer, because murder up here is a capital crime.»

«The death penalty?» Nicolette asked, her eyes rounded.

«That's right.» I winked. «Something to think about when you're considering joyriding one of the jeeps.»

«I wouldn't!»

«What about a motive?» Nathaniel persisted. Tenacious boy. I wonder where he got it from?

«No motive established so far. I haven't compiled enough information on Maowkavitz yet.»

«It's got to be personal,» he said decisively. «I bet she had a secret lover, or something. Rich people always get killed for personal reasons. When they fight about money they always do it in court.»

«I expect you're right.»

One thing all Penny Maowkavitz's nominees had in common, they were industrious people. I caught up with Bob Parkinson in the offices of the He3 mining mission centre, the largest building in Eden, a four-storey glass and composite cube. An archetypal company field headquarters, the kind of stolid structure designed to be assembled in a hurry, and last for decades.

His office didn't have quite the extravagance of Harwood's, it was more how I imagined the study of a computer science professor would look like. The desk was one giant console, while two walls were simply floor to ceiling holoscreens displaying orbital plots and breathtaking views of Jupiter's upper cloud level, relayed directly from the aerostats drifting in the gas-giant's troposphere. A hazed ochre universe that went on for ever, flecked by long streamers of ammonia cirrus that scudded past like a time-lapse video recording. The JSKP currently had twenty-seven of the vast hot-hydrogen balloons floating freely in the atmosphere; five hundred metre diameter spheres supporting the filtration plant which extracted He3 from Jupiter's constituent gases, and liquified it ready for collection by robot shuttles.

He3 is one of the rarest substances in the solar system, but it holds the key to commercially successful fusion. The first fusion stations came on-line in 2041, burning a mix of deuterium and tritium; second-generation stations employed a straight deuterium–deuterium reaction. Those combinations have a number of advantages: ignition is easy, the energy release is favourable, and the fuels are available in abundance. The major drawback is that both reactions are neutron emitters. Although you can use this effect to breed more tritium, by employing lithium blankets, it's a messy operation, requiring more complex (read: expensive) reactors, and a supplementary processing facility to handle the lithium. Without lithium blankets the reactor walls become radioactive, then have to be disposed of; and you require additional shielding to protect the magnetic confinement system. The costs in both monetary and environmental terms weren't much of an improvement on fission reactors.

Then in 2062 the JSKP dropped its first aerostat into Jupiter's atmosphere, and began extracting He3 in viable quantities. There are only minute amounts of the isotope present in Jupiter. But minute is a relative thing when you're dealing with a gas giant.

The fusion industry—if you'll pardon the expression—went critical. Stations burning a deuterium–He3 mix produced one of the cleanest possible fusion reactions, a high-energy proton emitter. It also proved an ideal space drive, cutting down costs of flights to Jupiter, which in turn reduced the costs of shipping back He3 , which led to increased demand.

An upward spiral of benefits. He3 was every economist's fantasy commodity.

Bob Parkinson was the man charged with ensuring a steady supply was maintained; a senior JSKP vice-president, he ran the entire mining operation. It wasn't the kind of responsibility I would ever want, but he appeared to handle it stoically. A tall fifty-year-old, with a monk's halo of short grizzled hair, and a heavily wrinkled face.

«I was wondering when you were going to get round to me,» he said.

«They told me it would have to be today.»

«God, yes. I can't delay the lowering, not even for Penny. And I have to be there.» A finger flicked up to one of the screens showing a small rugby-ball-shaped asteroid which seemed to be just skimming Jupiter's cloud tops. Fully half of its surface was covered with machinery; large black radiator fins formed a ruff collar around one conical peak. A flotilla of industrial stations swarmed in attendance, along with several inter-orbit transfer craft.

«That's the cloudscoop anchor?» I asked.

«Yes. Quite an achievement; the pinnacle of our society's engineering prowess.»

«I can't see the scoop itself.»

«It's on the other side.» He gave an instruction to his desk, and the view began to tilt. Against the backdrop of salmon and white clouds I could see a slender black line protruding from the side of the asteroid which was tide-locked towards the gas giant. Its end was lost somewhere among the rumbustious cyclones of the equatorial storm band.

«A monomolecule silicon pipe two and a half thousand kilometres long,» Bob Parkinson said with considerable pride. «With the scoop head filters working at full efficiency, it can pump a tonne of He3 up to the anchor asteroid every day. There will be no need to send the shuttles down to the aerostats any more. We just liquify it on the anchor asteroid, and transfer it straight into the tanker ships.»

«At one-third the current cost,» I said.

«I see you do your homework, Chief Parfitt.»

«I try. What happens to the aerostats?»

«We intend to keep them and the shuttles running for a while yet. They are very high-value chunks of hardware, and they've got to repay their investment outlay. But we won't be replacing them when they reach the end of their operational life. JSKP plans to have a second cloudscoop operational in four years' time. And, who knows, now we know how to build one, we might even stick to schedule.»

«When do you start lowering?»

«Couple of days. But the actual event will be strung out over a month, because believe me this is one hyper-complicated manoeuvre. We're actually decreasing the asteroid's velocity, which reduces its orbital height, and pushes the scoop down into the atmosphere.»

«How deep?»

«Five hundred kilometres. But the trouble starts when it begins to enter the stratosphere; there's going to be a lot of turbulence, which will cause flexing. The lower section of the pipe is studded with rockets to damp down the oscillations, and of course the scoop head itself has aerodynamic surfaces. Quantumsoft has come up with a momentum-command program which they think will work, but nobody's ever attempted anything like this before. Which is why we need a large team of controllers on site. The time delay from here would be impossible.»

«And you're leading them.»

«That's what they pay me for.»

«Well, good luck.»

«Thanks.»

We stared at each other for a moment. Having to conduct a direct interview with someone who was technically my superior is the kind of politics I can really do without.

«As far as we can ascertain at this point, Penny Maowkavitz didn't have any problems in her professional life,» I said. «That leaves us with her personal life, and her involvement with Boston. The motive for her murder has to spring from one of those two facets. You are one of the trustees named in her will, she obviously felt close to you. What can you tell me about her?»

«Her personal life, not much. Everyone up here works heavy schedules. When we did meet it was either on JSKP business, or discussing the possibilities for civil readjustment. Penny never did much socializing anyway. So I wouldn't know who she argued with in private.»

«And what about in the context of Boston? According to my information you're now its leader.»

His tolerant expression cooled somewhat. «We have a council. Policies are debated, then voted on. Individuals and personality aren't that important, the overall concept is what counts.»

«So you're not going to change anything now she's gone?»

«Nothing was ever finalized before her death,» he said unhappily. «We knew why Penny had the views she did, and made allowances.»

«What views?»

It wasn't the question he wanted, that much was obvious. A man who took flying an asteroid in his stride, he was discomforted by simply having to recount the arguments that went on in what everyone insisted on describing to me as a civilized discussion forum.

He ran his hands back through the hair above his ears, concern momentarily doubling the mass of creases on his face. «It's the timing of the thing,» he said eventually. «Penny wanted us to make a bid for independence as soon as the cloudscoop was operational. Six to eight weeks from now.»

I let out a soft whistle. «That soon?» That wasn't in Zimmels's briefing. I'd gathered the impression they were thinking in terms of a much longer timescale.

«Penny wanted that date because that way she'd still be alive to see it happen. Who can blame her?»

«But you didn't agree.»

«No, I didn't.» He said it almost as a challenge to me. «It's too soon. There's some logic behind it, admittedly. With an operating cloudscoop we can guarantee uninterrupted deliveries of He3 to Earth. It's a much more reliable system than sending the shuttles down to pick up fuel from the aerostats. Jupiter's atmosphere is not a benign environment; we lose at least a couple of shuttles each year, and the aerostats take a real pounding. But the cloudscoop—hell, there are virtually no moving parts. Once it's functioning it'll last for a century, with only minimal maintenance. And we have now established the production systems to keep on building new cloudscoops. So when it comes to He3 acquisition technology we're completely self-sufficient, we don't have to rely on Earth or the O'Neill Halo for anything.»

«And biotechnology habitats are also autonomous,» I observed. «You don't need spare parts for them either.»

«True. But it's not quite that simple. For all its size and cost and technology, the JSKP operation here is still very much a pioneering venture; roughly equivalent to the aircraft industry between the last century's two World Wars. We're at the propeller-driven monoplane stage.»

«That's hard to credit.»

«You've talked to Pieter Zernov, I believe. He's full of dreams of what the habitats can eventually evolve into. We need money for that, money and time. Admittedly not much in comparison to the cost of a cloudscoop; but nor is it a trivial sum. Then there's Callisto. At this moment I've got a team there surveying the equator for a suitable mass driver site. JSKP is planning to start construction in 2094, and use it to fire tanks of He3 at Earth's L3 point. There will be a whole string of tanks stretching right across the solar system. It'll take three years for them to arrive at L3, but once they start, delivery will be continuous. A mass driver will eliminate the need for ships like the Ithilien to make powered runs every month.»

«So what are you worried about? That Earth won't supply the parts for a mass driver? They'll be acting against their own interest. Besides, you'll always find one company willing to oblige.»

«It's not the availability of technology. It's the cost. The next decade is going to see JSKP investment in Jupiter triple if not quadruple. And it's only after that, when there are several cloudscoops operational, and the mass driver is flinging He3 at Earth on a regular basis, when you'll start to see the cash flow reversing. Once we've established a He3 delivery operation sophisticated enough to function with minimum maintenance and minimum intervention, the real profits are going to start rolling in. And that's when we can start thinking about buying out the existing shareholders.»

«I see what you mean. If you try and buy them out now, you won't have the money for expansion you need.»

He nodded, pleased I was seeing his viewpoint. «That's right. All this talk of independence is really most impulsive and premature. It can happen, it should happen, but only when the moment is right to assure success.»

Company line, that's what it sounded like to me. Which left me thinking: would a JSKP vice-president really be an unswervingly committed member of a rebellion against the board? Whatever the outcome, independence or otherwise, Bob Parkinson would keep the same job, probably for the same pay. Christ, but he'd manoeuvred himself into a superb position to play both ends against the middle. Just how shrewd was he?

«From what you've just told me, Boston actually benefited from Penny Maowkavitz's death.»

«That's way out of line, Chief, and you know it.»

«Yeah. Sorry. Thinking out loud; it's a bad habit. But I have to run through the process of elimination.»

«Well, I'd say you can eliminate any Boston members. Pieter told you what kind of ideals drive us. If it had come to a vote, Penny would have abided by the majority decision, as would I.»

«You mean you haven't decided yet?»

«There is a line, Chief Parfitt, and you are not on our side of it. I've put myself in a most dangerous position confiding in you. One word to the board from you, and my role out here is finished, along with my career and my pension and my future. But I talked to you anyway, honestly and openly, because I can see you genuinely want to find Penny's murderer, and I believe you're capable of doing so. But informing you of anything more than our general intentions, things which you could pick up in any bar in the habitat, that's out of the question. You see, you've been making some very ingratiating sounds towards us, words we like to hear, words we're flattered to hear, especially from your lips. But we don't know if they're real, or if they're just an excellent interview technique. So why don't you tell me; will the Eden police try to prevent Boston from achieving independence?»

I looked into his hooded eyes, searching for the depth which must surely come from being augmented by other minds. There was a great deal of resolution, but nothing much else. Bob Parkinson was a man alone.

So I had to ask myself, did he really think the board didn't know of his membership? Or if they did, and he was their provocateur, why wouldn't he tell me?

«It's like this,» I said. «I would never fight a battle, unless I knew I'd already won.»

My third day started with a dream. I was completely naked, standing on Jupiter's delicate ring. Clouds swirled eternal below me, perfectly textured mountains of frozen crystals glittering in every shade of red, from deep magenta to a near-dazzling scarlet. Close enough that I could reach out and touch them, fingertips stirring the interlocking whorls, bathing my skin in a sensation of powder-fine snow. It tingled. The planet was crooning plaintively, a bass whalesong emerging from depths beyond perception. I watched, entranced, as its energy shroud was revealed to me, the magnetosphere and particle wind, embracing it like the milk-white folds of an embryo membrane. They palpitated slowly, long fronds streaming out behind the umbra.