Chapter 15: The Last Bell Run

The last bell run of the rotation was not different from the first. The bell descended through the same water, at the same rate, on the same lifting wire, through the same darkness. The heliox flowed through the same regulators. The hot water circulated through the same tubes. The communications crackled through the same intercom. Everything was the same.

Everything was different.

Kwame knew this was the last time. The last time he would sit in the bell and watch the depth gauge count upward through the numbers — fifty, seventy, ninety, one-twenty, one-forty, one-fifty. The last time he would feel the bell settle at depth, the lifting wire going slack and then taking up strain, the bell hovering three metres above the seafloor. The last time Fraser would open the bottom hatch and the black water would be there, flat and trembling, the meniscus of pressure at the bell's mouth, the interface between the atmosphere they breathed and the ocean they worked in.

The last time, for this rotation. He would be back. There would be other rotations, other bell runs, other descents through the water column to the seafloor and other ascents back. The work would continue. The industry would continue. The North Sea would continue to press against the pipelines and the manifolds and the platform legs with the patient insistence of a force that had been doing this longer than the industry had existed and that would continue long after the last rig was decommissioned and the last pipeline was deburied and the last diver had surfaced for the last time.

But this descent, this bell run, this last lock-out of rotation forty-two — this was the one he was in. This was the one that was happening. And the knowing that it was the last gave it a weight that the previous bell runs had not carried, the weight of finality, of conclusion, of the last time before the transition began.

He locked out. The entry into the water was the same — feet first, arms at sides, the umbilical paying out, the cold arriving at his face behind the viewport, the world contracting to the helmet and the light. He descended to the clay. He stood on the seafloor at 150 metres and looked around at the darkness and the marine snow and the small circle of illumination that his helmet lamp provided, the two metres of visibility that was all the North Sea gave, the small window of sight in the vast blindness of the deep.

Mac locked out beside him. They stood together on the clay, two men in their suits and helmets, their lights crossing in the murk, the umbilicals curving up through the water to the bell above, the connection to the surface maintained by the bundled hoses and cables that carried the gas and the water and the voice and the video.

The task was a final survey — a general inspection of the seabed in the vicinity of the work sites, checking for debris, for dropped objects, for any evidence that the diving operations had left material on the seafloor that should not be there. The survey was a regulatory requirement, a housekeeping exercise, the industry cleaning up after itself before departing the site.

They walked. Kwame and Mac walked along the pipeline route, their lights swinging across the clay and the pipeline and the concrete weight coating and the marine growth, the seabed as it had been before they arrived and as it would be after they left — grey, cold, dark, populated by the small creatures that lived at this depth, the brittle stars and the sea cucumbers and the worms that burrowed in the clay and the fish that drifted through the beam of the light with the unconcerned movement of animals that had never seen light and that regarded the helmet lamp with curiosity rather than alarm.

The pipeline was as they had left it. The spool piece repair was complete — Kwame's welds visible as bright bands of metal at the two joints, the weld caps catching the light, the metal reflecting the helmet lamp with a clean, silvery gleam that would dull over the next few months as the corrosion protection was applied and the marine growth colonised the new surface. But for now, the welds were visible. His work was visible. The connection he had made, the joint between the old pipe and the new, was there on the seafloor, holding, structural, permanent.

He knelt beside the upstream joint and ran his gloved hand along the weld cap. He could feel the profile — the slight convexity, the smooth transition at the toes, the uniform width. His weld. His signature. The ten-thousandth-and-something root pass of his career, laid at 150 metres in the dark, the metal joining the metal, the arc creating the light, the work doing what the work did.

He would not see these welds again. Five years would pass before the next inspection, and Kwame did not know if he would be the diver who performed it. Five years was a long time in the dive industry. Five years from now he would be forty-one, still young enough for saturation, but the career was finite, the body's tolerance for pressure and confinement and the helium atmosphere not infinite, the years accumulating in the joints and the sinuses and the ears, the cumulative effect of hundreds of bell runs and thousands of hours at depth and the particular fatigue that came not from a single rotation but from the aggregate of all of them, the slow wearing that the industry euphemistically called "career exposure."

He touched the weld one more time. Then he stood and moved on.

The survey continued. They walked the manifold sites, checking the seabed for debris. They found nothing — the diving operations had been clean, the equipment recovered, the seafloor as they had found it, the only evidence of their presence the repaired pipeline and the inspection marks on the manifold's identification plates, the small signs of human intervention in the dark.

At the end of the survey, Kwame stood on the seafloor and did something he had never done before. He stopped. He turned off his helmet lamp.

The darkness was total. Not the darkness of a room with the lights off, which contained the knowledge of the light switch and the possibility of illumination. Not the darkness of a night without stars, which contained the knowledge of the horizon and the certainty of dawn. The darkness of 150 metres in the North Sea was the darkness of the deep, the original darkness, the darkness that had existed before the first photon reached the first eye, the darkness that was not the absence of light but the presence of depth, the accumulated weight of 150 metres of water pressing the light out of the world and replacing it with nothing.

In this darkness, Kwame could not see his hand. He could not see Mac, three metres away. He could not see the bell, three metres above. He could not see the pipeline or the manifold or the seafloor he was standing on. He could see nothing. The darkness was complete, and in its completeness it was, paradoxically, liberating — because the darkness removed the visual, and the visual was the sense that tied him to the world, that oriented him in space, that told him where he was and what was around him and what was near and what was far. Without the visual, he was nowhere. Without the visual, he was everywhere. Without the visual, he was suspended in the dark, a point of consciousness in an infinite volume, the pressure holding him, the water surrounding him, the darkness containing him.

He stood in the dark for perhaps thirty seconds. It felt longer. The darkness stretched time the way the pressure stretched the breathing gas — expanding it, making it denser, filling each second with more sensation than a surface second could hold.

He heard the ocean. Not the sound of waves, which did not reach this depth, but the sound of the deep — the low, subsonic hum of the water itself, the vibration of the planet's liquid skin, the frequency below hearing that the body felt rather than heard, a rumble in the chest, a vibration in the bones, the sound of the earth turning beneath the sea.

He heard his breathing. The demand regulator clicking open with each inhalation, the gas flowing into his lungs, the exhalation valve hissing as the spent gas escaped in a stream of bubbles that rose from his helmet and were immediately lost in the darkness, the bubbles ascending through 150 metres of water to the surface, each one a small capsule of heliox released from his lungs and returning to the atmosphere, the diver's breath joining the sky.

He heard the hot water. The faint hiss of the water circulating through the suit's tubes, the thermal barrier between his body and the cold, the warmth that he had learned not to take for granted, the warmth that could stop.

He heard his heart. In the darkness, in the silence that was not silence but the deep's own frequency, he could hear his heart beating. The rhythm was steady — the steady, trained rhythm of a man who had learned to keep his heart rate low at depth, the body conserving energy, the cardiac output calibrated for the work, the heart doing what it did with the consistency of a machine, the biological pump that had been running without interruption for thirty-six years, since the first beat in his mother's womb, the first contraction of the cardiac muscle that set the rhythm that would continue for a lifetime, the rhythm that his mother had heard, once, through a doctor's stethoscope, the heartbeat of her unborn son, the first evidence that he was there, alive, real, a person inside a person, a diver inside a bell, a son inside a mother.

He turned the light back on.

Mac was looking at him. Through Mac's viewport, Kwame could see Mac's eyes — the expression of a man who had just watched his partner turn off his light at 150 metres and stand in the total dark and who understood, without needing to ask, that the standing was not recklessness but ceremony, not a lapse in procedure but a farewell.

Everything all right, Mac said.

Yes, Kwame said. Just saying goodbye.

Mac nodded. Mac understood goodbyes. Mac understood the particular form of goodbye that a diver said to the depth at the end of a rotation — not a goodbye to the work, which would resume on the next rotation, but a goodbye to this particular encounter with the deep, this particular immersion in the darkness and the pressure and the cold, this particular spell of time spent in the between.

They returned to the bell. Kwame went last, hauling himself through the bottom hatch after Mac, the water draining from his suit as he entered the bell's atmosphere, the droplets falling back through the hatch into the ocean, the last drops of the North Sea that would touch him on this rotation.

Fraser sealed the bottom hatch. The bell ascended. Twelve minutes of rising through the water column, the depth gauge counting down — one-forty, one-twenty, one hundred, eighty, sixty, forty — the numbers descending as the bell ascended, the mathematics of return, the inverse of the descent.

The bell reached the moon pool. The clamps engaged. The mating flange connected the bell to the transfer chamber. The hatches opened. The trunk was passable. The living chamber waited.

Kwame crawled through the trunk for the last time on this rotation. His knees on the cold steel, his equipment bag behind him, the trunk's sixty centimetres of diameter pressing against his shoulders, the tube that connected one world to another, the passage between the bell and the chamber, between the depth and the habitat, between the work and the waiting.

He entered the living chamber. He removed his equipment. He showered. He dressed in the chamber clothes — shorts and a T-shirt, the informal uniform of men living at fifteen atmospheres, the light clothing appropriate for the chamber's warmth. He sat at the table.

Mac sat across from him. Mac had a mug of tea — the tea that was passed through the medical lock in vacuum flasks, the tea that tasted of the helium atmosphere's particular distortion but that was, despite the distortion, recognisably tea, recognisably warm, recognisably the thing that Mac drank constantly and that represented, in the chamber, the same thing it represented on the surface: normalcy, routine, the small comfort of a familiar substance consumed at a familiar table.

Mac raised his mug. Last one, he said.

Last one, Kwame said.

They drank. The tea was not good. The tea was never good in the chamber. But the drinking was good. The drinking was the ritual, the ceremony, the acknowledgment that the work was done and the rotation was ending and the decompression would begin tomorrow and in five days they would be at the surface, at one atmosphere, breathing air, hearing their own voices in the register they had been born with, tasting food that tasted like food, sleeping in beds that were not bunks in a steel tube, living in the world rather than in the between.

Sean was talking about something — a story that had been developing for three days, the narrative so complex that Kwame had lost track of the characters and the sequence of events and was now listening to the rhythm rather than the content, the cadence of Sean's helium voice rising and falling with the skill of a natural storyteller who could hold an audience even when the audience had heard the story before and even when the voice was pitched to a frequency that would make a bat wince.

Tomasz was on his last crossword book. He had completed eleven books — 330 puzzles — in twenty-one days. One more book. Thirty more puzzles. The crosswords would carry him through the decompression.

Davy was looking at his calendar. Day twenty-one. Seven Xs to go. But the seven included the five decompression days, which were different from the working days — lighter, slower, the body releasing its stored helium, the pressure dropping, the numbers on the gauge decreasing with the gradual, measured pace of a controlled ascent, each hour a small step toward the surface, each day a significant reduction in the pressure, the body transitioning from the compressed state to the surface state with the patience that the decompression demanded.

Fraser had finished cleaning the equipment. Everything was stowed, checked, ready for the next rotation — the next six men who would enter the chamber and be compressed to 150 metres and descend in the bell and work on the seafloor and return to the chamber and eat the cardboard food and sleep the fragmented sleep and breathe the heliox and hear their voices in the helium register and live, for twenty-eight days, in the between.

Kwame opened his notebook. He turned past the letter he had written — the pages torn out, the ragged edges of the perforation visible in the binding — and he found a clean page.

He wrote: Last bell run. Day 21. Survey complete. No debris on the seafloor. Pipeline repair confirmed — welds visible, holding, structural. Manifold inspections complete — all data transmitted, all reports filed. Work scope complete.

He wrote: I turned off my light on the seafloor. I stood in the dark at 150 metres and I listened. I heard the ocean and my breathing and my heart. I heard the deep. I said goodbye to the depth — not to the work, which will continue, but to this particular depth, this particular rotation, this particular twenty-eight days in the between.

He wrote: Tomorrow the decompression begins. Five days of ascending. Five days of the pressure dropping. Five days of the helium leaving my body, molecule by molecule, the gas that has been dissolved in my tissues for twenty-one days working its way out through the blood and the lungs and the exhalation valve and into the scrubbers and out of the chamber and into the air of the vessel and from there into the sky. The helium will leave me and I will become, gradually, a surface person again. My voice will deepen. My taste will return. My sleep will normalise. My body will depressurise.

He wrote: And then I will read the letters. And then I will call Yaw. And then I will book the flight. And then I will go home.

He wrote: The letter I sent to Mama is somewhere in the system — in a mail bag, in a sorting facility, on a truck, on a plane. It is crossing the distance I have not crossed. It is doing the thing I have not done. It is going home.

He wrote: But I will follow it. I will follow the letter. I will go where the letter went — from the chamber to the surface, from the vessel to the shore, from Aberdeen to Accra, from the flat on Crown Street to the house in Osu. I will follow the letter the way a diver follows the umbilical back to the bell — hand over hand, the connection guiding me, the line that sustained me now leading me back to the place I departed from.

He closed the notebook. He placed it under his pillow. He lay in his bunk and looked at the underside of Fraser's mattress and listened to the chamber — the ventilation, the scrubbers, the distant engines, the intercom, Sean's voice, Mac's breathing, the sounds that had been the sounds of his life for twenty-one days and that would, over the next five days, gradually change as the pressure dropped and the atmosphere shifted and the helium thinned and the acoustic properties of the gas changed, the sounds decompressing along with the men, the chamber's voice returning, by degrees, to the surface register.

He thought about the surface. He thought about it with the particular anticipation of a man who was not merely returning to the surface but returning to the world — the world of letters and phone calls and flights and doors and kitchen tables and mothers and brothers and nieces and the mango tree outside the window and the twelve steps to the bedroom and the room that had been kept for him, the room with the books and the trophies and the bed that his mother made every Monday, the room that was waiting the way the letters were waiting, the way the family was waiting, the way everything was waiting for the thing that had been deferred and deferred and that was now, finally, no longer deferred but planned, intended, committed to.

He was going home. The words were written. The letter was sent. The intention was real.

The chamber hummed. The pressure held — for now, for one more night, the last night at 15.2 bar, the last night at the bottom of the pressure curve, the last night of full saturation before the decompression began and the slow ascent commenced and the numbers on the gauge started their five-day decline toward one atmosphere, toward the surface, toward the air.

Kwame closed his eyes. He slept. The sleep was deep and the dreams were vivid, as the dreams at depth always were — the REM periods long, the imagery clear, the scenes connected by the logic of pressure rather than the logic of narrative.

He dreamed of the bell. In the dream, the bell was ascending, rising through the water, the depth gauge counting down, the darkness thinning, the light returning, the green giving way to grey giving way to the particular brightness of the surface, the light of the world above the water, the light that he had not seen for twenty-one days but that existed, that waited, that was there, at the top of the water column, at the end of the ascent, at the surface.

In the dream, the bell broke the surface. The water fell away. The bell swung in the air, dripping, the orange sphere suspended above the sea, and through the viewport Kwame could see the sky — not the ceiling of the chamber, not the overhead of the bell, but the sky, the actual sky, grey and wide and full of the particular light of the North Sea in summer, the simmer dim, the between-light, the light that was neither day nor night but the transition between them.

And then the dream shifted, the way dreams shift at depth, and the sky was not grey but blue, not the blue of Scotland but the blue of Ghana, the deep saturated blue of the equatorial sky, and the sun was not the pale northern sun but the Accra sun, direct and warm and assertive, and the bell was not over the North Sea but over the Gulf of Guinea, and below the bell was not the grey water of the North Sea but the green water of the Atlantic off the Ghanaian coast, and the bell was descending, descending toward a shore that Kwame could see through the viewport — a shore with palm trees and red earth and the rooftops of Osu and the particular quality of light that Accra had, the light of home.

The bell descended. The shore approached. The dream carried him down, down, toward the place he had left, the place he was returning to, the place where the pressure was not fifteen atmospheres but one, where the atmosphere was not heliox but the warm, heavy, fragrant air of Accra, the air that carried the smell of charcoal and palm oil and the particular dust of the city, the air that his mother breathed, the air that his brother breathed, the air that his niece breathed, the air that the house breathed in and out through its open windows and doors, the air of the world, the real air, the air of home.

He woke. The chamber was dark. The pressure gauge read 15.2 bar. The intercom was quiet. Mac was snoring.

Tomorrow the decompression would begin. Tomorrow the numbers would start to fall. Tomorrow the ascent would commence — not in the bell, not through the water, but in the chamber, the pressure dropping metre by metre, hour by hour, the body releasing its stored helium, the tissues letting go of the gas they had held for twenty-one days.

Five days to the surface. Five days from 150 metres to zero. Five days from fifteen atmospheres to one.

And then the world. And then the letters. And then the flight.

And then home.

The chamber hummed. Kwame lay in his bunk and waited for the morning, and the morning came, as it always came — not with light, because the chamber had no windows, but with Sarah's voice on the intercom, calm and precise, reading the numbers that described the world he was about to leave.

Chamber pressure one-five-zero metres. PPO2 zero-point-four bar. CO2 zero-point-three per cent. Temperature twenty-nine degrees. All parameters normal.

Good morning, gentlemen. Decompression commences at 08:00.