Insistence of Vision (18 page)

– 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 domes! 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.

“Is there anything else we can do?” she asked.

“Not much.” He shrugged. “Finish flooding the tanks, I suppose. But they’re already almost full, and the weight isn’t enough.
That
is just too strong.” And he pointed out the forward viewing patch at the
Pride of Laussane,
its five large, air-filled compartments buoyant enough to overcome any resistance by this little truck.

“But… can’t they do what we’ve done. Fill their own balls –”

“Ballast tanks. Sorry, my lady. They don’t have any big ones. Just a few little bottles for adjusting trim.”

Jonah kept his voice even and matter-of–fact, the way a vessel captain should, even though his stomach churned with dread, explaining how external keel weights saved interior cargo space. Also, newer craft used bubbles with slimmer walls. You didn’t want to penetrate them with too many inlets, valves and such.

“And no one else has your new pump,” Petri added. Her approving tone meant more to Jonah, in these final minutes, than he ever would have expected.

“Of course…” he mused.

“Yes? You’ve thought of something?”

“Well, if we could somehow cut the tether cable…”

“We’d sink back to safety!” Then Petri frowned. “But we’re the only chance they have, on the
Pride of Lausanne.
Without our weight, they would shoot skyward like a seed pip from a lorgo fruit.
”

“Anyway, it’s up to them to decide,” Jonah explained. “The tether release is at their end, not ours. Sorry. It’s a design flaw that I’ll fix as soon as I get a chance, right after re-painting your name on the stern.”

“Hm. See that you do,” she commanded.

Then, after a brief pause.

“Do you think they might release us, when they realize both ships are doomed?”

Jonah shrugged. There was no telling what people would do, when faced with such an end. He vowed to stand watch though, just in case.

He sneezed hard, twice. Pressure effects were starting to tell on him.

“Should we inform the others?” he asked Petri, with a nod back toward
Bird’s
other two compartments, where the crying had settled down to low whimpers from a couple of younger kids.

She shook her head. “It will be quick, yes?”

Jonah considered lying, and dismissed the idea.

“It depends. As we rise, the water pressure outside falls, so if air pressure inside remains high, that could lead to a blow-out, cracking one of our shells, letting the sea rush in awfully fast. So fast, we’ll be knocked out before we can drown. Of course, that’s the
least
gruesome end.”

“What a cheerful lad,” she commented. “Go on.”

“Let’s say the hull compartments hold. This is a tough old bird.” He patted the nearest curved flank. “We can help protect against blowout by venting compartment air, trying to keep pace with falling pressure outside. In that case, we’ll suffer one kind or another kind of pressure-change disease. The most common is the Bends. That’s when gas that’s dissolved in our blood suddenly pops into tiny bubbles that fill your veins and arteries. I hear it’s a painful way to die.”

Whether because of his mutation, or purely in his mind, Jonah felt a return of the scratchy throat and burning eyes. He turned his head barely in time to sneeze away from the window and Petri.

She was looking behind them, into the next compartment. “If death is unavoidable, but we can pick our way to die, then I say let’s choose –”

At that moment, Jonah tensed at a sudden, jarring sensation – A
snap
that rattled the viewing-patch in front of him. Something was happening, above and ahead. Without light from the Cleopatra domes, darkness was near total outside, broken only by some algae-glowbulbs placed along the flank of the Pride of Laussane. Letting go of Petri, he went to all the bulbs inside the
Bird’s
forward compartment and covered them, then hurried back to press his face against the viewing-patch.

“What is it?” Petri asked. “What’s going on?”

“I think…” Jonah made out a queer, sinuous rippling in the blackness between the two submarines.

He jumped as something struck the window. With pounding heart, he saw and heard a snakelike thing slither across the clear zone of bubble, before falling aside. And beyond, starting from just twenty meters away, the row of tiny glow spots now shot upward, like legendary rockets, quickly diminishing, then fading from view.

‘The tether,” he announced in a matter-of-fact voice.

“They let go? Let
us
go?” A blend of hope and awe in her voice.

“Made sense,” he answered. “They were goners anyway.”
And now they will be the heroes, when all is told. Songs will be sung about their choice, back home.

That is, assuming there still is a home. We have no idea if Leininger dome was the only victim this time.

He stared at the pressure gauge. After a long pause when it refused to budge, the needle finally began to move. Opposite to its former direction of change.

“We’re descending,” he decreed with a sigh. “In fact, we’d better adjust. To keep from falling too fast. It wouldn’t do, to reach safety down there, only to crack open from impact.”

Jonah put the Sadoulite dad – Xerish – to work, pumping in the opposite direction, less frantically than before, but harder work, using compressed air to push out-and-overboard some water from the ballast tanks, while Petri, now experienced, handled the valves. After supervising for a few minutes, he went back to the viewing port and peered outside.
I must keep a sharp look out for the lights of Cleo Crevice. We may have drifted laterally and I can adjust better while we’re falling than later, at the bottom.
He used the rudder and stubby elevation planes to turn his little sub, explaining to Petri how it was done. She might have to steer, if Jonah’s strength was needed on the propeller crank.

A low, concussive report caused the chamber to rattle and groan. Not as bad as the horrid thump had been, but closer, coming from somewhere above. Jonah shared eye contact with Petri, a sad recognition of something inevitable. The end of a gallant ship –
Pride of Laussane.

Two more muffled booms followed, rather fainter, then another.

They must have closed their inner hatches. Each compartment is failing separately.

But something felt wrong about that. The third concussion, especially, had felt deep-throated, lasting longer than reasonable. Amid another bout of sneezing, Jonah pressed close against the view-patch once again, in order to peer about. First toward the bottom and then upward.

Clearly, this day had to be the last straw. It rang a death knell for the old, complacent ways of doing things. Leininger had been a big, important colony, and perhaps not today’s only major victim. If thumps were going unpredictable and lethal, then Cleopatra might have to be abandoned.

Jonah knew very little about the plan concocted by Petri’s mysterious cabal of young women and men, though he was glad to have been chosen to help. To follow a
rascal’s
legend in search of new homes. In fact, two things were abundantly clear.
Expeditions must get under way just as soon as we get back. And there should be more than just one, following Melvil’s clues. Subs must be sent in many directions! If Venus created other realms filled with hollow volcanic globes that can be seeded with Earthly life, then we must find them.

A second fact had also emerged, made evident during the last hour or so. Jonah turned to glance back at a person he had barely known, until just a day ago.

It appears that I married really well.

Although the chamber was very dim, Petri glanced up from her task and noticed him looking at her. She smiled – an expression of respect and dawning equality that seemed just as pleased as he now felt. Jonah smiled back – then unleashed another great sneeze. At which she chirped a short laugh and shook her head in fake-mocking ruefulness.