The Bell Run to Ninety Fathoms

• Chapter 1 Pressurized
• Chapter 2 Living at Depth
• Chapter 3 The Diving Bell
• Chapter 4 Ninety Fathoms Down
• Chapter 5 Mud and Murk
• Chapter 6 An Anomaly on the Manifold
• Chapter 7 Donald Duck Voices
• Chapter 8 Phantom in the Riser
• Chapter 9 Cold Metal Whispers
• Chapter 10 The Severed Umbilical
• Chapter 11 Locked Inside
• Chapter 12 Helium Dreams
• Chapter 13 The Voice from Control
• Chapter 14 The Platform Above
• Chapter 15 A Broken Seal
• Chapter 16 Diver Down
• Chapter 17 Blind Run
• Chapter 18 The Saboteur’s Hand
• Chapter 19 Gas Mix Manipulation
• Chapter 20 Twenty-Four Atmospheres
• Chapter 21 The Storm Strikes
• Chapter 22 High-Pressure Standoff
• Chapter 23 The Fuse in the Wellhead
• Chapter 24 Emergency Blowdown
• Chapter 25 Deco Stop
• Chapter 26 Surface Tension

The outer hatch slammed shut with the dull, mechanical finality of a bank vault closing over a condemned man. Inside Chamber One of the saturation spread aboard the dive support vessel Aegir Venture, the noise registered less as sound and more as a percussive slap against the eardrums. Jock MacCallum did not flinch. He had heard that dog-latch rotate into place dozens of times over fifteen years of working the North Sea oil patches, and every single time it meant the same thing: the world of fresh air, rain, cold beer, and easy breathing was officially cancelled for the next four weeks.

The chamber smelled of warm steel, bleach, old rubber gaskets, and the faint, sweet chemical tang of stale sweat that never truly left the scrubbers. It was an eight-foot-diameter steel tube painted hospital-gloss white, bolted permanently to the deck inside the ship’s cavernous hull. Along the curve of the steel ceiling ran parallel rows of wire-caged lighting, hydraulic valves, speaker cones, and the heavy plastic hoses of the environmental control system. Along the floor ran two narrow bunks with thin, fire-retardant foam mattresses, barely wide enough for a broad-shouldered man to roll over without grazing his elbows against cold iron.

Across the narrow gangway sat Keith Miller, his legs folded awkwardly beneath him on the lower bunk. Miller was twenty-eight, seven years younger than Jock, with the wiry build of an ex-military gymnast and the perpetually restless hands of someone who hadn't yet learned how to sit still in a coffin. He was picking at the edge of his wrist seal, his expression carefully neutral, though the rapid rise and fall of his collarbone gave him away.

"You're twitching, Keith," Jock said, leaning back against the curved hull with his hands behind his head.

"I'm not twitching. Just settling in."

"You're tapping the deck plate. Metal carries sound straight up the hull into the dive control room. Superintendent Craig's probably sitting up there right now listening to you tap out morse code with your boot heel."

Keith stopped his foot instantly. "Just waiting for the gas to hit, Jock. First five minutes are always the ones that get in my head. You know how it is."

"Aye. Like watching someone pour concrete down your throat."

Above their heads, a sharp metallic click cut through the silence, followed by the dry hiss of a pneumatic valve opening wide. The blowdown had begun.

Instantly, the air in Chamber One thickened. The sound was not a gentle whisper; it was a roar, a furious, deafening rush like standing beneath a broken industrial steam pipe. High-pressure gas—a precise, calculated blend of helium laced with a bare sliver of oxygen—erupted through the diffusers in the bulkheads. The atmosphere immediately went dense and tropical. Compression generated heat through basic gas laws, and within forty seconds the ambient temperature spiked from an autumn chill of sixty degrees to an equatorial ninety-five.

Jock closed his eyes and began to swallow rhythmically. Pinch the nose, blow gently. Pop. Swallow. Pop again. It was an involuntary dance of the Eustachian tubes. The pressure pushed against his eardrums with steady, relentless force, threatening to turn his head inside out if he fell behind the rate of descent. He watched Keith pinch his nose hard, eyes squeezed shut, blowing until his cheeks turned crimson.

"Don't blow so hard you rupture an ear drum," Jock shouted over the howling gas, though his voice had already begun to shift, losing its rich Scottish baritone and rising into a thin, buzzing timbre. "Small swallows. Keep your jaw moving."

Keith nodded furiously, working his jaw side to side as sweat broke out across his forehead and began dripping down the bridge of his nose. The heat in the tube was stifling now. The air felt heavy, almost liquid, as the mass of millions upon millions of gas molecules jammed together into the confined iron volume. Every breath required a fraction more effort from the diaphragm; the lungs had to physically shove the thick mixture in and out.

Through the heavy acrylic view-port set into the transfer lock, Jock could see the distorted silhouette of the life support technician on watch. The tech, wearing a fleece vest against the chilly draft of the ship’s hold, held a clipboard and peered through the thick glass to monitor their physical condition. He tapped a grease pencil against the glass once—a thumbs-up inquiry. Jock held up his right hand, making an 'OK' circle with his thumb and forefinger. He didn't look at the technician's eyes. Outside that port lay normal sea-level air at 1.013 bar. Inside the tube, the digital gauge on the control console was climbing through three bar, five bar, eight bar.

Within minutes, they passed the pressure equivalent of two hundred feet of seawater, then three hundred. The roar of the valves didn't slacken. They were going deep this trip. The contract on the Frigg-Ekofisk tieback called for heavy intervention work on a faulty manifold situated at ninety fathoms—five hundred and forty feet beneath the surface of the grey North Sea. At that depth, the pressure reached over seventeen atmospheres, or roughly two hundred and fifty pounds on every square inch of human skin. To work down there without their lungs collapsing into wet rags, their bodies had to be saturated completely. Their blood, fat reserves, muscle tissues, and bones needed to absorb inert helium until they reached equilibrium with the depth of the ocean floor. Once saturated, they could stay at that pressure indefinitely without needing further decompression until the entire job was finished.

The heat peaked at a sweltering ninety-eight degrees. Jock stripped off his cotton T-shirt, balling it up to wipe the grease-sweat from his neck. Beside him, Keith had done the same, his pale skin flushed pink from the sudden thermal shock.

"Talk to me," Keith said. The words came out absurdly high, like an enraged cartoon duck trying to give an operational briefing. The helium had altered the velocity of sound across their vocal cords. The human voice box was built to resonate in thick nitrogen-oxygen air, not the lightning-fast medium of light helium.

Jock let out a short, nasal laugh that sounded like a squeaking brake caliper. "You sound like you’ve been gargling party balloons, lad."

"You don't sound like Sean Connery yourself, old man," Keith squeaked back, wiping his chest. "How much more we got?"

Jock glanced at the internal digital depth indicator mounted behind protective armor glass on the bulkhead. "We're passing four hundred feet. Another hundred and forty to go. Ten minutes more of the blow, then Craig will shut the taps and let us bake until the scrubbers pull the heat down."

The chamber’s environment was entirely artificial, maintained by an invisible team of life support supervisors and technicians sitting in a darkened control van forty feet above them on the main deck. Those men held the levers of life and death. If the life support team pumped too much oxygen into the mix, the divers would suffer catastrophic central nervous system toxicity, seize on their bunks, and bite their tongues in half. If they didn't pump enough, hypoxia would softly put them to sleep forever before they even realized they were lightheaded. If the pressure dropped abruptly—even by a fraction—the gas dissolved in their blood would boil out of solution like warm lager popped open on a summer day, shredding joints, spinal cords, and brain tissue in seconds.

The roar softened gradually to a sharp hiss, then dropped into an eerie, deadened hush as the main blowdown valves snapped shut.

The silence that followed was suffocating. The only remaining sounds were the faint, continuous hum of the carbon dioxide scrubbers and the heavy, slightly wheezing respirations of two grown men sitting half-naked on canvas bunks. The air was uncomfortably hot and remarkably thick. In high-pressure helium, you could feel the drag of the gas against your fingers when you waved your hand through the space.

A metallic click came over the chamber’s internal communication speaker. The voice of Craig, the dive superintendent, boomed down into the steel hull. Even through the helium speech unscrambler—a rack-mounted digital processor designed to electronically pull their distorted pitches back down into a human range—Craig's voice had an odd, hollow, robotic resonance, like it was being beamed from the moon through an old transistor radio.

"Chamber One, Dive Control. Depth checks five-forty on the nose. How are your ears, boys?"

Jock reached over and thumbed the chamber intercom toggle on the bulkhead. "Chamber One checks fine, Craig. Ears cleared all the way down. Keith's slightly pink around the gills, but he'll survive."

"Good to hear, Jock," Craig's synthetic voice replied. "Get yourselves sorted out. Life support is kicking on the chiller loop now to bring the temp down to seventy-eight. You've got eighteen hours of rest and acclimatization before the first bell run. Rest up. We’ve got a real bastard of a seabed tie-in waiting for you."

"Understood, Control. Standing by."

Jock released the toggle. The switch gave a blunt clack under his thumb.

Keith slumped back against his thin pillow, staring up at the curved steel ceiling only eighteen inches above his nose. "Eighteen hours in this sardine tin before we even get into the wet."

"Be grateful for the eighteen hours," Jock said, pulling his bunk curtain partially closed to block the glare of the overhead fluorescent strip. "Once the bell starts running, you'll be wishing you were back in here lying on your back doing sweet nothing. The seabed's four degrees Celsius down there, pitch black, and the tide runs like a freight train through the platform legs."

"I know the depth, Jock. I did my deep qualification run in the fjords."

"A fjord is a swimming pool, Keith. No currents, no mud, no live hydrocarbons under three thousand pounds of wellhead pressure. The North Sea doesn't give a damn about your certificates."

Keith didn't argue. He just sighed, the sound high-pitched and fragile, and closed his eyes.

Jock lay back and laced his fingers over his chest. He knew the drill. The first night under pressure was always the hardest on the mind. The realization of absolute enclosure had a way of creeping into a man's thoughts when the adrenaline of the compression faded. To leave this steel cylinder right now—to walk outside into the gray Aberdeenshire rain—would take eight full days of slow, excruciating decompression. The door was not just locked; it was physically welded shut by the physics of the atmosphere. If someone unbolted the outer hatch right this second, their bodies would literally detonate from the explosive pressure drop. They were closer to the conditions of outer space than any astronaut on the International Space Station; at least an astronaut only had one atmosphere of pressure to worry about. Down here, they had seventeen.

A soft scrape echoed against the outer hull—a dull, rhythmic vibration. Jock frowned slightly, his eyes opening in the dimness of the bunk.

It was not the regular vibration of the Aegir Venture’s main thrusters. The ship was dynamically positioned, using four massive azimuth thrusters to hold its location over the oilfield without anchors, but those thrusters produced a steady, deep-throated drone that hummed through every bolt of the ship like a living pulse. This sound was different: an irregular, metallic tap-tap-tap, coming from the external service umbilical line that routed through the dive bay bulkhead near the medical lock.

Jock waited. Five seconds passed. Then another metallic click, followed by the faint hiss of an equalizing valve on the small food-and-medical lock positioned between their living chamber and the wet transfer compartment.

Keith hadn't noticed; the younger diver’s breathing had already slowed into the heavy rhythm of sleep, exhausted by the physical strain of compression.

Jock swung his legs over the edge of the bunk, his bare feet touching the cold diamond-plate aluminum floor. The air was cooling down quickly now as the chiller did its work, and a sudden shiver ran up his spine. He padded across the two steps of floor space to the medical lock—a tiny, two-foot-wide cylindrical airlock used for passing food, hot water, books, and fresh clothing into the chamber without dropping the pressure.

The inner hatch of the lock was locked tight, its brass turning-wheel secured. But through the thick, four-inch glass viewing port in its center, Jock could see down the bore of the small tube.

Inside the lock sat a small, sealed aluminum canister—the standard delivery capsule sent down from the ship's galley with their first post-pressurization meal. But taped to the exterior of the canister, facing directly against the thick glass, was a slip of waterproof dive slate paper.

Written on it, in bold, jagged black grease-marker strokes, were five words:

THE MANIFOLD IS NOT ACCIDENTAL.

Jock stared at the slate, the thick, hot helium air catching in his throat as the chiller fan hummed blindly above him.

The slip of white waterproof slate remained pressed flush against the four-inch acrylic porthole of the medical lock. Jock MacCallum stood barefoot on the diamond plate, watching it as if it might detonate. In the strange, high-refraction glass of the port, the thick grease-pencil letters appeared slightly curved, distorted like the print in a submerged bottle. THE MANIFOLD IS NOT ACCIDENTAL.

Above him, the brass equalizing cock gave a final, wheezing sniff. The differential pressure between the medical lock and Chamber One had flattened to zero. That meant whoever had inserted the canister from the dive spread’s machinery flat was gone, or at least waiting out of line-of-sight. The life support technician on the main control board would have logged the operation in the chamber logbook: 18:42 – Galley delivery via Med-Lock. Nothing more. It happened four times a day, every day of a run. Bread, beef, clean rags, battery packs, and dry socks went in; rubbish, dirty towels, urine sample tubes, and scribbled laundry chits came out.

Jock gripped the brass central dog on the inner door. He spun it three turns counterclockwise. The threads were coated in heavy food-grade silicone grease that smelled faintly of paraffin wax. When the dogs disengaged, the inner door swung inward with a heavy, oily glide.

The smell arrived first. High pressure dulls the sense of taste and leaves your tongue feeling like you’ve been licking pewter spoons, but smell remains sharp—almost too sharp. The lock emitted the comforting, school-canteen odor of boiled potatoes, overcooked beef braised in thick brown gravy, and warm tinfoil. Beneath it lay the crisp, cold tang of normal air from the ship's hold that had hitched a ride inside the capsule before equalizing.

Jock reached into the twenty-four-inch bore of the steel tube. His forearm brushed the cold iron flank of the cylinder. With a swift flick of his thumbnail, he peeled the waterproof slate away from the aluminum delivery can. It had been secured with two small tabs of black electrical tape, the edges neatly trimmed with a rigging knife. Whoever had stuck it there wasn't in a panic. It was deliberate work.

He slid the slate into the waistband of his cotton shorts, hoisted the twin insulated tins of food out of the tube, and set them on the small fold-down mess tray fixed to the chamber bulkhead. Then he shoved the lock door shut and spun the brass wheel until the dogs bit hard against the neoprene O-ring. He reached up and thumped the flat of his palm twice against the hull—the universal sat-diver shorthand to the tech outside that the lock was clear.

A moment later, the loud, shuddering roar of the external exhaust vented through the hull as the tech blew the empty lock back down to surface pressure.

Keith didn’t stir. The younger diver was sprawled face-down on his bunk, one arm dangling over the edge, his fingers trailing on the aluminum floor plates. His breathing was the thick, rhythmic snore of a man whose central nervous system had been battered by eighty bars of pure physics. When you push human tissues through seventeen atmospheres of pressure in two hours, the body treats it like a beating with a rubber mallet. Every joint aches with a dull, dry creak, the marrow feels bruised, and the brain simply demands darkness.

Jock sat down on the edge of the lower bunk opposite Keith’s rack. He didn't touch the food. Instead, he pulled the white plastic slate from his waistband and turned it under the harsh yellow glare of the bulkhead lamp.

The slate was standard-issue Subsea 7 equipment: six inches by four, matte-finish polycarbonate, punched with an eyelet for a lanyard. Divers used them to jot down flange measurements, bolt tensions, or valve numbers when the helium squawk made voice radio impossible through the umbilical. The handwriting was blocky, disciplined, and heavy-handed, the stroke of an offshore tradesman who spent half his life writing inspection logs with cold fingers.

THE MANIFOLD IS NOT ACCIDENTAL.

No initials. No date. No name.

Jock turned it over. The reverse was blank except for an old, faint yellow scuff from a hydraulic oil stain that hadn't entirely scrubbed out.

"Who the hell are you talking to?" Keith’s voice was a croak, muffled by his pillow.

Jock slipped the slate flat beneath his thigh before looking up. "Not talking. Checking the rations."

Keith groaned, rolled onto his back, and stared at the ceiling eighteen inches from his nose. His face was puffy around the eyes, the classic 'moon-face' caused by the fluid shifts that occur when the human cardiovascular system attempts to balance itself against massive gas density. "Tell me it's not fish. If they sent down cod again, I'm going to throw it right back through the outer dog."

"Stew," Jock said, his voice flat, thin, and comical through his helium-shrunken vocal cords. "Roast beef, mash, and tinned peas. Smells like grease."

Keith swung his legs off the canvas and sat up, rubbing his eyes with both fists. "My teeth itch, Jock. Why the hell do my teeth itch?"

"High-pressure nervous syndrome. HPNS. The gas gets into the nerve sheaths. You’ll have the shakes in your thumbs by tomorrow morning. Don't think about it, and it won't bother you."

"Easy for you to say. You’ve got hide like a walrus." Keith leaned forward, planting his elbows on his knees. His forearms were indeed trembling—a fine, high-frequency vibration that made his fingers flutter like dry leaves. "My knees feel like someone packed the caps with broken glass."

"Eat your spuds. The potassium helps with the cramps."

Jock pushed the second tin container across the narrow gangway. Keith caught it, pulled the tinfoil lid back with a rip, and dug in with a plastic spoon. Saturation life had no room for metal cutlery; drop a heavy stainless-steel fork on an aluminum deck plate at seventeen bar, and the sharp acoustic crack could split a man's eardrum through the hyper-dense gas. Everything in sat was soft, blunt, or plastic.

For ten minutes, the only sound inside the steel tube was the scrape of plastic against aluminum tins and the wet, rhythmic hum of the environmental scrubbers. The scrubber was a blue-painted canister mounted at the far end of the compartment, packed with sodasorb granules that chemically devoured the carbon dioxide they exhaled. If the scrubber motor failed, they would be unconscious within thirty minutes and dead within an hour, their blood poisoned by their own breath. A red telltale light burned constantly on the unit's front face: a tiny, silent reminder that the machine was breathing for them.

"The manifold," Jock said casually, chewing a chunk of gristly beef that had all the flavor of wet cardboard. "What did Craig tell you about it on the deck before we locked in?"

Keith paused, his spoon halfway to his mouth. "Craig? Not much. Said the Frigg-Ekofisk tieback had an abnormal pressure drop on the bypass header. Production went from seventy thousand barrels a day to zero in forty seconds. Platform safety systems shut the subsurface valves down automatically because they thought the main line had ruptured."

"Did it rupture?"

"Inspection ROV went down yesterday afternoon," Keith said, swallowing. "Craig showed me the video grab in the briefing shack. The bypass spool looks like an accordion. Mangled. Flange bolts sheared clean off at the root. Craig figured it was water hammer. A slug of condensate hitting an elbow at two hundred miles an hour because some idiot on the platform deck opened an export valve too fast."

Jock chewed slowly. "Water hammer doesn't shear sixteen two-inch high-tensile steel stud bolts, Keith. It ruptures the pipe wall first."

Keith frowned, his Donald Duck voice taking on an irritated edge. "Well, what else is going to do it? It's ninety fathoms down, Jock. It’s sitting in five hundred feet of black water with twelve inches of silt over the mudline. Nothing touches that manifold except the fish and the remote vehicles."

Jock didn't answer. He reached down beside his hip, pulled the white plastic slate from beneath his leg, and dropped it into Keith's lap.

Keith looked down. His spoon hovered. He blinked once, then twice, his brow furrowing as he read the five black words.

"What's this?"

"Came through the med-lock five minutes ago. Taped to the bottom of the stew can."

Keith picked up the slate, turned it over, and looked at the back as Jock had done. "Is this some kind of wind-up? One of the riggers messing about before we went into the pot?"

"Riggers don't have access to the med-lock," Jock said quietly. "The lock sits inside the saturation control module. The only people who touch that outer door are the life support techs on shift, the dive superintendents, and the chamber tender. That's three men at any given minute."

Keith tossed the slate back onto Jock's bunk as if it had suddenly grown teeth. "Then it’s a joke. Craig having a laugh at our expense. You know how he is. He’s been on the rigs forty years; he thinks mind games keep the divers sharp."

"Craig didn't write that," Jock said. "Craig has no left thumb. Lost it on an anchor line off the Shetlands in ninety-two. When he holds a marker, he grips it between his forefinger and his palm like a child. His letters always lean thirty degrees to the left. Look at that writing. It's straight up and down. Neat. Block print."

Keith took a slow breath. He pushed his half-eaten tin of stew away, his appetite clearly gone. "So what are you saying? Someone's trying to spook us?"

"I'm saying someone on the surface knows why that manifold blew, and they know whoever goes down there in the bell is going to see something they weren't supposed to see."

The chamber suddenly felt smaller. The walls, eight feet across and curved like the inside of a boiler, seemed to press inward against the bunks. In saturation, there was no back door. There was no stepping out for a cigarette, no calling for a taxi, no walking off the job. They were imprisoned by seventeen atmospheres of physical reality. The air outside their six-inch-thick steel hull was eighty feet above them, dry and free, but separated from them by a wall of decompression time that could not be hurried by a single second. If the ship caught fire, if the dynamic positioning failed, if the world ended above the waterline, they were welded to this spot for eight long days until the gas could be slowly, agonizingly boiled out of their blood.

Keith rubbed his hands together. The HPNS tremor was getting worse; his knuckles clicked as he flexed them. "We should ask for Craig on the intercom. Put the slate up to the viewport and make him explain it."

"No," Jock said instantly, his voice sharp enough to cut through the helium squeak. "You do that, and whoever put it in the lock knows we’ve seen it. If it was the tech on watch, he’ll deny it. If it was someone else, we just tipped our hand to Dive Control. You don't make waves in the tank, Keith. Not until you know which way the current is running."

"We’re diving on that header in sixteen hours, Jock!" Keith's voice spiked into a near-inaudible whistle of frustration. "If that manifold wasn't wrecked by a pressure surge—if someone blew it with an explosive or cut it on purpose—there could be unexploded ordnance down there. There could be live hydrocarbons trapped in the pockets. We could take a torch to that flange and blow ourselves into the next county!"

"Which is why we keep our mouths shut and our eyes open," Jock said.

He stood up, the top of his head brushing the canvas-wrapped cold water line that ran along the spine of the chamber. He stepped past the chemical toilet enclosure—a curtained nook containing a stainless-steel bowl with a violent foot-pedal flush—and moved to the forward view-port that looked through into the wet transfer lock.

The transfer lock was dark. Beyond it lay the massive, round clamping ring where the diving bell would mate with the chamber system tomorrow morning. The bell was an eight-ton sphere of high-tensile steel, currently resting in its gantry above the ship’s moonpool—the open hole in the center of the vessel's hull through which divers were lowered into the Atlantic deeps.

Through the heavy acrylic glass, the interior of the transfer lock looked dead and industrial. Hoses hung from brass hooks like butchered carcasses. Thick vulcanized-rubber hot-water suits, gray with salt and stiff with age, dangled from wire hangers beside heavy weight belts and bail-out cylinders. Everything was waiting. The whole complex machine—hundreds of tons of ship, miles of hydraulic cabling, millions of pounds of gas—was aimed entirely at putting two human beings onto the mud at the bottom of the sea to swing wrenches on broken pipe.

A soft hum signaled the activation of the comms system. A click followed, and then the robotic voice of the life support supervisor cut through the chamber.

"Chamber One, Dive Control. Temp is down to twenty-six Celsius. We’re trimming the O2 down to zero-point-four bar partial pressure for the rest period. Settle down, lads. We’ve got the night watch on now. Next comms check at zero-six-hundred."

Jock reached out and pressed the brass talk button. "Understood, Control. Temp is comfortable. Turning down the rack lights now."

"Sleep well, boys. Don't let the pressure bite."

The speaker clicked dead.

Jock reached up and clicked the switch on the main fluorescent tube, plunging the chamber into a deep, red-tinted twilight. Only the small emergency nightlights remained on, casting long, curved shadows across the white-painted hull plates.

Keith had already pulled his bunk curtain fully closed. From behind the thin, fire-resistant green cloth came the restless shifting of his body against the foam mattress, accompanied by the occasional, muffled click of his trembling fingers against the steel frame. The young diver was trying to force himself to sleep, trying to pretend he was anywhere else on earth.

Jock climbed into his own bunk. The mattress was hard, the pillow barely thicker than a folded newspaper. In the dim red glow, the chamber felt less like an engineering triumph and more like an iron tomb dropped into a vault. Every joint in his shoulders and hips throbbed with the dull ache of the compression. His skin felt dry, parched by the thirsty helium that wicked away moisture from human pores twice as fast as normal air.

He reached beneath his pillow, his calloused fingers finding the smooth edge of the plastic dive slate.

He traced the raised letters with the tip of his thumb in the dark. THE MANIFOLD IS NOT ACCIDENTAL.

Sixteen hours until the run. Ninety fathoms down, beneath five hundred and forty feet of frigid North Sea water, the Frigg-Ekofisk manifold was waiting in the silt. And somewhere above him, forty feet up on the steel decks of the Aegir Venture, someone was watching the gauges, waiting to see what the two men in the iron box would do when they found out the truth.