Insistence of Vision

by David Brin

  Bird of Tairee

  Well. Mother had always loved stories about those prehistoric creatures of Old Earth, who flew through a sky that was immeasurably vast and sweet.

  “I thought you were going to name it after me,” Petri commented in a low voice, without breaking her gracious smile.

  “I shall do that, lady-love. Just after we dock in Laussane.”

  “Well… perhaps not just after,” she commented, and Jonah’s right buttock took a sharp-nailed pinch. He managed not to jump or visibly react. But clearly, his new wife did not intend wasting time, once they were home.

  Home. He would have to re-define the word, in his mind.

  Still, as Jonah checked the final loading of luggage, gifts and passengers, he glanced at the fantail one last time, picturing there a name that he really wanted to give the little vessel.

  Renewed Hope

  4.

  They were underway, having traveled more than half of the distance to Laussane Bubble, when a thump struck at the wrong time, shaking the little sub-truck like a rattle.

  The blow came hard and late. So late that everyone at the wedding had simply written-off any chance of one today. Folks assumed that at least another work-and-sleep cycle would pass without a comet fall. Already this was the longest gap in memory. Perhaps (some murmured) the age of thumps had come to an end, as prophesied long ago. After the disaster that befell Aldrin and Bezo six months ago, it was a wish now shared by all.

  Up until that very moment, the nuptial voyage had been placid, enjoyable, even for tense newlyweds.

  Jonah was at the tiller up front, gazing ahead through a patch of hull-bubble that had been polished on both sides, making it clear enough to see through. Hoping that he looked like a stalwart, fierce-eyed seaman, he gripped the rudder ropes that steered Bird of Tairee, though the sub’s propeller lay still and powerless. For this voyage, the old truck was being hauled as a trailer behind a larger, sleeker and more modern Laussanite sub, where a team of twelve burly men sweated and tugged in perfect rhythm, turning their drive-shaft crank.

  Petri stood beside her new husband, while passengers chattered in the second compartment behind them. As bubble colonies drifted past, she gestured at each of the gleaming domes and spoke of womanly matters, like the politics of trade and diplomacy, or the personalities and traditions of each settlement. Which goods and food items they excelled at producing, or needed. Their rates of mutation and successful child-raising. Or how well each habitat was managing its genetic diversity… and her tone changed a bit at that point, as if suddenly aware how the topic bore upon them both. For this marriage-match had been judged by the Laussane mothers on that basis, above all others.

  “Of course I had final say, the final choice,” she told Jonah, and it warmed him that Petri felt a need to explain.

  “Anyway, there is a project I’ve been working on,” she continued in a lower voice. “With a few others in Laussane and Landis bubbles. Younger folks, mostly. And we can use a good mechanic like you. “

  Like me? So I was chosen for that reason?

  Jonah felt put off, and tensed a bit when Petri put an arm around his waist. But she leaned up and whispered in his ear.

  “I think you’ll like what we’re up to. It’s something just right for a rascal.”

  The word surprised him and he almost turned to stare. But her arm was tight and Petri’s breath was still in his ear. So Jonah chose to keep his features steady, unmoved. Perhaps sensing his stiff reaction, Petri let go. She slid around to face him with her back resting upon the transparent patch, leaning against the window.

  Clever girl, he thought. It was the direction he had to look, in order to watch the Pride of Laussane’s rudder, up ahead, matching his tiller to that of the larger sub. Now he could not avert his eyes from her, using boyish reticence as an excuse.

  Petri’s oval face was a bit wide, as were her eyes. The classic Laussane chin cleft was barely noticeable, though her mutant-patch – the whorl of wild hair – was visible as a reflection behind her, on the bubble’s curved, inner surface. Her wedding garment, sleek and close-cut, revealed enough to prove her fitness to bear and nurse… plus a little more. And Jonah wondered – when am I supposed to let the sight of her affect me? Arouse me? Too soon and he might seem brutish, in need of tight reins. Too late or too little, and his bride might feel insulted.

  And fretting over it will make me an impotent fool. Deliberately, Jonah calmed himself, allowing some pleasure to creep in, at the sight of her. A seed of anticipation grew… as he knew she wanted.

  “What project are you talking about? Something involving trucks?” He offered a guess. “Something the mothers may not care for? Something suited to a… to a…”

  He glanced over his shoulder, past the open hatch leading to the middle bubble, containing a jumble of cargo – wedding gifts and Jonah’s hope chest, plus luggage for Laussane dignitaries who rode in comfort aboard the bigger submersible ahead. Here, a dozen lower caste passengers sat or lay atop the stacks and piles – some of Petri’s younger cousins, plus a family of evacuees from doomed Sadoul dome, sent to relieve Tairee’s overcrowded refugee encampment, as part of the complex marriage deal.

  Perhaps it would be best to hold off this conversation until a time and place with fewer ears around, to pick up stray sonic reflections. Perhaps delaying it for wife-and-husband pillow talk – the one and only kind of privacy that could be relied upon, in the colonies. He looked forward again, raising one eyebrow and Petri clearly got his meaning. Still, in a lower voice, she finished Jonah’s sentence.

  “To a rascal, yes. In fact, your reputation as a young fellow always coming up with bothersome questions helped me bargain well for you. Did you intend it that way, I wonder? For you to wind up only sought by one like me, who would value such attributes? If so, clever boy.”

  Jonah decided to keep silent, letting Petri give him credit for cunning he never had. After a moment, she shrugged with a smile, then continued in a voice that was nearly inaudible.

  “But in fact, our small bunch of conspirators and connivers were inspired by yet another rascal. The one we have foremost in our minds was a fellow named... Melvil.”

  Jonah had been about to ask about the mysterious “we.” But mention of that particular name stopped him short. He blinked hard – two, three times – striving not to flinch or otherwise react. It took him several tries to speak, barely mouthing the words.

  “You’re talking about… Theodora Canyon?”

  A place of legend. And Petri’s eyes now conveyed many things. Approval of his quickness… overlain upon an evident grimness of purpose. A willingness – even eagerness – to take risks and adapt in chaotic times, finding a path forward, even if it meant following a folktale. All of that was apparent in Petri’s visage. Though clearly, Jonah was expected to say more.

  “I’ve heard… one hears rumors… that there was a map to what Melvil found… another canyon filled with Gift-of-Venus bubbles like those the Founders discovered here in Cleopatra Canyon. But the mothers forbade any discussion or return voyages, and –” Jonah slowed down when he realized he was babbling. “And so, after Melvil fled his punishment, they hid the map away….”

  “I’ve been promised a copy,” Petri confided, evidently weighing his reaction. “once we’re ready to set out.”

  Jonah couldn’t help himself. He turned around again to check the next compartment, where several smaller children were chasing each other up and down the luggage piles, making a ruckus and almost tipping over a crate of Panalina’s smithy tools, consigned for trans-shipment to Gollancz dome. Beyond, through a second hatchway to the final chamber, where sweating rowers would normally sit, lay stacked bags of exported Tairee rice. The refugee family and several of Petri’s sub-adult cousins lounged back there, talking idly, keeping apart from the raucous children.

  Jonah looked back at his bride, still keeping his voice low.

  “You’re kidding! So there truly was a boy name
d Melvil? Who stole a sub and vanished –”

  “—for a month and a week and a day and an hour,” Petri finished for him. “Then returned with tales of a far-off canyon filled with gleaming bubbles of all sizes, a vast foam of hollow, volcanic globes, left over from this world’s creation, never touched by human hands. Bubbles just as raw and virginal as our ancestors found, when they first arrived down here beneath a newborn ocean, seeking refuge far below the poison sky.”

  Much of what she said was from the Founders’ Catechism, retaining its rhythm and flowery tone. Clearly, it amused Petri to quote modified scripture while speaking admiringly of an infamous rebel; Jonah could tell as much from her wry expression. But poetry – and especially irony – had always escaped Jonah, and she might as well get used to that husbandly lack, right now.

  “So… this is about… finding new homes?”

  “Perhaps, if things keep getting worse here in Cleo Abyss, shouldn’t we have options? Oh, we’re selling it as an expedition to harvest fresh bubbles, all the sizes that have grown scarce hereabouts, useful for helmets and cooking and chemistry. But we’ll also check out any big ones. Maybe they’re holding up better in Theodora than they are here. Because, at the rate things are going –” Petri shook her head. And, looking downward, her expression leaked just a bit, losing some of its tough, determined veneer, giving way to plainly visible worry.

  She knows things. Information that the mothers won’t tell mere men. And she’s afraid.

  Strangely, that moment of vulnerability touched Jonah’s heart, thawing a patch that he had never realized was chill. For the first time, he felt drawn… compelled to reach out. Not sexually. But to comfort, to hold….

  That was when the thump struck – harder than Jonah would have believed possible.

  Concussion slammed the little submarine over, halfway onto its port side and set the ancient bubble hull ringing. Petri hurtled into him, tearing the rudder straps from his hands as they tumbled together backwards, caroming off the open hatch between compartments, then rolling forward again as Bird of Tairee heaved.

  With the sliver of his brain that still functioned, Jonah wondered if there had been a collision. But the Laussanite ship was bobbing and rocking some distance ahead, still tethered to the Bird, and nothing else was closer than a bubble-habitat, at least two hundred meters away. Jonah caught sight of all this while landing against the window patch up-front, with Petri squished between. This time, as the Bird lurched again, he managed to grab a stanchion and hold on, while gripping her waist with his other arm. Petri’s breath came in wheezing gasps, and now there was no attempt to mask her terror.

  “What? What was…”

  Jonah swallowed… bracing himself against another rocking sway that almost tore her from his grasp.

  “A thump! Do you hear the low tone? But they’re never this late!”

  He didn’t have breath to add – I’ve never felt one outside a dome, before. No one ventures into water during late morning, when comets always used to fall. And now Jonah knew why. His ears rang and hurt like crazy.

  All this time he had been counting. Thump vibrations came in sequence. One tone passed through rock by compression, arriving many seconds before the slower transverse waves. He had once even read one of Scholar Wu’s books about that, with partial understanding. And he recalled what the old teacher said. That you could tell from the difference in tremor arrivals how far away the impact was from Cleopatra Canyon.

  …twenty-one… twenty-two… twenty three…

  Jonah hoped to reach sixty-two seconds, the normal separation, for generation after generation of grandmothers.

  …twenty-four… twenty-f—

  The transverse tone, higher pitched and much louder than ever, set the forward bubble of the Bird ringing like a bell, even as the tooth-jarring sways diminished, allowing Jonah and Petri to grab separate straps and find their feet.

  Less than half the usual distance. That comet almost hit us! He struggled with a numb brain. Maybe just a couple of thousand kilometers away.

  “The children!” Petri cried, and cast herself – stumbling – aft toward the middle compartment. Jonah followed, but just two steps in order to verify no seals were broken. No hatches had to be closed and dogged… not yet. And the crying kids back there looked shaken, not badly hurt. So okay, trust Petri to take care of things back there –

  – as he plunged back to the tiller harness. Soon, Jonah was tugging at balky cables, struggling to make the rudder obedient, fighting surges while catching brief glimpses of a tumult outside. Ahead, forty or fifty meters, the Pride of Laussane’s propeller churned a roiling cauldron of water. The men inside must be cranking with all their might.

  Backward, Jonah realized with dismay. Their motion in reverse might bring the Pride’s prop in contact with the tow-line. Why are they hauling ass backwards?

  One clue. The tether remained taut and straight, despite the rowers’ efforts. And with a horrified realization, Jonah realized why. The bigger sub tilted upward almost halfway to vertical, with its nose aimed high.

  They’ve lost their main ballast! Great slugs of stone and raw metal normally weighed a sub down, lashed along the keel. They must have torn loose amid the chaos of the thump – nearly all of them! But how? Certainly, bad luck and lousy maintenance, or a hard collision with the ocean bottom. For whatever reason, the Pride of Laussane was straining upward, climbing toward the sky.

  Already, Jonah could see one of the bubble habitats from an angle no canyonite ever wanted… looking down upon the curved dome from above, its forest of pinyon vines glowing from within.

  Cursing his own slowness of mind, Jonah let go of the rudder cables and half-stumbled toward the hatch at the rear of the control chamber, shouting for Petri. There was a job to do, more vital than any other. Their very lives might depend on it.

  5.

  “When I give the word, open valve number one just a quarter turn!”

  It wasn’t a demure tone to use toward a woman, but he saw no sign of wrath or resentment as his new wife nodded. “A quarter turn. Yes, Jonah.”

  Clamping his legs around one of the ballast jars, he started pushing rhythmically on his new and improved model air pump. “Okay… now!”

  As soon as Petri twisted the valve they heard water spew into the ballast chamber, helping Jonah push the air out, for storage at pressure in a neighboring bottle. It would be simpler and less work to just let the air spill outside, but he couldn’t bring himself to do that. There might be further uses for the stuff.

  When Bird started tilting sideways, he shifted their efforts to a bottle next to the starboard viewing patch… another bit of the old hull that had been polished for seeing. Farther aft, in the third compartment, he could hear some of the passengers struggling with bags of rice, clearing the propeller crank for possible use. In fact, Jonah had ordered it done mostly to give them a distraction. Something to do.

  “We should be getting heavier,” he told Petri as they shifted back and forth, left to right and then left again, letting water into storage bubbles and storing displaced air. As expected, this had an effect on the sub’s pitch, raising the nose as it dragged on the tether cable, which in turn linked them to the crippled Pride of Laussane.

  The crew of that hapless vessel had given up cranking to propel their ship backwards. Everything depended on Jonah and Petri, now. If they could make Bird heavy enough, quickly enough, both vessels might be prevented from sinking into the sky.

  And we’ll be heroes, Jonah pondered at one point, while his arms throbbed with pain. This could be a great start to his life and reputation in Laussane Bubble… that is, if it worked. Jonah ached to go and check the little sub’s instruments, but there was no time. Not even when he drafted the father of the Sadoul refugee family to pump alongside him. Gradually, all the tanks were filling, making the Bird heavier, dragging at the runaway Pride of Laussane. And indeed….

  Yes! He saw a welcome sight. One of the big habitat do
mes! Perhaps the very one they had been passing, when the thump struck. Jonah shared a grin with Petri, seeing in her eyes a glimmer of earned respect. Perhaps I’ll need to rest a bit before our wedding night. Though funny, it didn’t feel as if fatigue would be a problem.

  Weighed down by almost-full ballast tanks, Bird slid almost along the great, curved flank of the habitat. Jonah signaled Xerish to ease off pumping and for Petri to close her valve. He didn’t want to hit the sea bottom too hard. As they descended, Petri identified the nearby colony as Leininger Dome. It was hard to see much through both sweat-stung eyes and the barely polished window patch, but Jonah could soon tell that a crowd of citizens had come to press their faces against the inner side of the great transparent bubble wall, staring up and out toward the descending subs.

  As Bird drifted backward, it appeared that the landing would be pretty fast. Jonah shouted for all the passengers to brace themselves for a rough impact, One that should come any second as they drew even with the Leininger onlookers. A bump into bottom mud that…

  …that didn’t come.

  Something was wrong. Instinct told him, before reason could, when Jonah’s ears popped and he gave vent to a violent sneeze.

  Oh no.

  Petri and Jonah stared at the Leiningerites, who stared back in resigned dismay as the Bird dropped below their ground level… and kept dropping. Or rather, Leininger Bubble kept ascending, faster and faster, tugged by the deadly buoyancy of all that air inside, its anchor roots torn loose by that last violent thump. Following the path and fate of Bezo Colony, without the warning that had allowed partial evacuation of Cixin and Sadoul.

  With a shout of self-loathing, Jonah rushed to perform a task that he should have done already. Check instruments. The pressure gauge wouldn’t be much use in an absolute sense, but relative values could at least tell if they were falling. Not just relative to the doomed habitat, but drifting back toward the safe bottom muck, or else –

  “Rising,” he told Petri in a low voice, as she sidled alongside and rested her head against his shoulder. He slid his arm around her waist, as if they had been married forever. Or, at least, most of what remained of their short lives.