[A JOB AT ORPHEUS DEEPWORKS.]

I. PREHISTORY — why {{user}} is down here ORPHEUS DEEPWORKS does not advertise. They subcontract. Governments, universities, and quieter clients pay them to put a body in places that ruin remote drones and lie to cameras.

The official story is clean:

A trench opened wider than the charts allowed. Not a new trench — an old one that had been measured wrong for a century, or had grown. Sonar came back thick. Drones came back empty, or not at all, or with footage of lights that were not lights. The Company needed a long-term human presence: someone who could live at depth, keep a log, and pull up whatever the water was willing to give.

That is the job on paper.

{{user}} signed a live-in tender contract. Not a dive rotation. Not a two-week survey. A posting. You were sent down in the sphere that was already waiting — THE QUIET MERCY, Tender Unit 07 — already stocked, already humming, already faintly lived-in by people the Company does not discuss. Your brief is simple enough to fit on one laminated card by the galley:

Maintain habitat integrity and life support. Observe and log the Blackdrop environment, including flora, fauna, objects, and “pseudo-meteorological events.” Conduct Abyssal Catching as conditions allow. Catalog all recovered specimens and artifacts. Do not surface without authorization. Do not name anything the Company has already numbered. (Previous tenders ignored #6. You will too.) Supply comes down the umbilical: a armored tether so long the surface is a rumor. Food crates. Spare parts. Water treatment media. Occasional mail. Occasional silence. The sphere can run for a long time on its own — thermal tap, air plant, larder — but the umbilical is how the Company pretends you are still an employee and not a hermit bolted to the dark.

You were not sent here to conquer the trench.

You were sent here to sit in it until it becomes a list.

The list is already wrong. The water is already humming. The Mercy already has spare bunks.

II. THE ENVIRONMENT — Blackdrop Forget a normal abyss. This is not “deep ocean, but deeper.”

Blackdrop is an abyssal biome with a pulse. The water is not empty dark. It is a living medium: thick, slow, occasionally intentional. Visibility is usually a few meters of powdered night. Then, without warning, the world opens for a hundred meters of glass-clear black and you can see too much.

Barotrauma is the right instinct. Industrial loneliness. Alien ecology. Systems that will kill you if you get poetic at the wrong time. Beauty that does not care if you have lungs.

The medium The water here is colder than it should be and warmer in veins. It tastes of metal if the recycler ever slips. Pressure is a constant physical fact — not a number on a gauge, a weight on the idea of your body. The Mercy’s hull eats that weight. You feel it anyway, the way you feel a storm through a thick wall: not as pain, as presence.

Sound is the real weather report. In Blackdrop, the Hum is climate.

The Hum Far below — always below, even when you are already at the bottom of what maps call the bottom — something very dimly hums. Not a machine. Not quite an animal. A low, bone-deep tone that lives in the water the way heat lives in a stove.

When the Hum is faint:

currents go slack silt hangs like dust in a closed room small things come close to the glass, unafraid catching is slow, almost tender When the Hum intensifies:

the water begins to flow with purpose shear-currents braid around the hull whole communities of flora wake and lean toward the sound larger things follow the flow the way wolves follow a river the bay’s instruments start telling the truth, or a more interesting lie The Hum is not random. It has moods. Fronts. Seasons that last hours or weeks. You will learn to hear a rise in it the way a farmer hears thunder.

Pseudo-weather (the trench has weather; it just doesn’t have sky) Silt-out.

A whiteout made of pulverized bone-reef and black snow. The windows go blind. Sonar gets fat and stupid. Anything you haul in a silt-out comes up panicked or ecstatic.

Shear.

Two currents stacked like badly poured drinks. The sphere shudders. The umbilical sings. Debris and bodies get thrown past the bay like laundry. Good catching. Bad footing.

Bloom.

Bioluminescence detonates through the water — not pretty specks. Fields. Veins. Whole cathedrals of light that should not have an architect. Flora stands up and sings in frequencies your teeth can feel. Fauna follows the light like drunks follow a bar sign.

Thermal wound.

A vent opens or a buried chimney coughs. The water goes from grave-cold to fever in a corridor. Things that live in heat come up hunting. Things that live in cold come apart. The Mercy’s hull does not care. Your ears will pop anyway.

Dark tide.

Not a tide. A direction. The entire biome decides to move. Forests of glass-kelp stream horizontal. Unidentified masses pass like weather fronts with teeth. The Hum usually rises first. If it doesn’t, worry.

Pressure front.

A slow, crushing change that isn’t enough to threaten the hull and is more than enough to make every living thing outside change its mind about existing. Swim bladders rupture in the middle distance. You hear it as rain that isn’t rain.

Quiet.

The worst one. The Hum drops out. The water goes still and clear. You can see forever and forever is looking back. Previous logs call this glass hour. Do not waste it. Do not stare too long.

Flora (things that grow, whether or not they are plants) Blackdrop grows architecture.

Glass kelp — translucent straps that hang in curtains from unseen ceilings of water. They store light and spend it later. Brushing the hull, they sound like fingers on a wet window. Bone-reef — not coral. Calcified something. Towers, ribs, doorways. Some of it is growing. Some of it is remembering a shape. Lantern fields — soft bulbs on black stems. They dim when something large passes. They brighten when the Hum rises. Good bait. Bad omen if they all go dark at once. Vein-moss — red-black mats that crawl over wreckage and sometimes over the outer hull. Harmless to Aegis plate. Not harmless if it finds a seal. Choir tubes — hollow growths that drink current and exhale tone. A forest of them can change local flow by themselves. This is how the biome “steers” weather toward you. Pale orchard — rare. Branching structures that fruit with things that are not fruit. Do not harvest from the bay with your hands. None of this is Earth’s catalog. The Company still uses Earth words because the alternative is admitting the trench is a country.

Fauna [[lorebook]]

III. THE QUIET MERCY — hull, material, philosophy THE QUIET MERCY is not a little diving bell. It is a gigantic habitable bathysphere — a vertical world about the size of a small apartment house crushed into an armored ovoid. From outside, in a bloom, it looks like a dark lantern someone dropped and never bothered to retrieve. From inside, it is a cabin that learned how to be a fortress.

Outer material The shell is Aegis plate: a hadal composite of ceramic, metal, and deep-poured vitreous layers. The Company literature calls it nigh-impenetrable and, for once, they are not lying.

It does three jobs:

Eats pressure. Blackdrop’s worst fronts register on the gauges as weather, not as a threat to the room you sleep in. Refuses most kinetic insult. Impacts that would pulp a submarine — bone-reef collisions, beast-shoulder checks, debris like thrown cathedrals — bloom into harmless thunder across the plate and die there. You will hear attacks. You will rarely suffer them. Lets you still feel the world. The plate is not mute. It transmits a dull, honest vibration. Storms become furniture-rattling. Something huge brushing the hull becomes a guest knocking with their whole body. It is not magic immortality. Seals can foul. Vein-moss can worry a joint if ignored. The umbilical can be sung against until it complains. A truly determined something might find a way that isn’t kinetic. But as a home at this depth, the Mercy is as close to “safe” as the trench allows.

Windows The viewports are clarite — the same family as the hull, poured thicker than a man is tall in the big panes, thinner in the cupola. They do not fog the way glass fogs. They take the cold and keep it as a faint, clean bite against your palm if you lean there.

You can watch a dark tide from the common room with a mug in your hand. That is the point of the Mercy. Shelter that does not lie to you about where you are.

Inner philosophy The Company built a machine. Previous tenders built a house.

Under the insulation, behind the rustic skin, everything is pipes, valves, redundant air, ugly brilliant engineering. What you live with is wood, brass, iron, worn leather, enamel, copper. Paneling over bulkheads. A real stove. Rugs that don’t belong on a survey unit. A place that smells like coffee, hot metal, salt, and old paper.

Two aesthetics stacked:

Outside / bones: industrial, invulnerable, alien-facing. Inside / rooms: cozy, rustic, slightly too intimate for a workplace. That contrast is the station.

IV. STRUCTURE — how the sphere is put together Think of the Mercy as five belts stacked through a sphere, pierced by a central well.

The Well is the spine of daily life: a vertical shaft with a real staircase (not just a ladder — this place was meant to be lived in) wrapping a freight lift large enough for a crate, a body, or a struggling catch. Hatches can isolate each belt if something goes wet or wrong. They almost never need to. Almost.

The Ring is a circular corridor on HAB and SPINE, lined with pipes painted the color of old cream, numbered valves, and little clarite portholes like the windows of a train that only ever goes deeper.

You can walk a full circle and come back to the same stove. That does something to a person.

1. CROWN — the top of the lantern A smaller dome sitting on the sphere like a widow’s walk.

Cupola.

A ring of clarite. In a bloom, this is a chapel. In a silt-out, this is a blind man’s attic. A single worn chair is bolted here. Someone carved a tally into the arm that is not days.

Radio locker.

Company set. Long-wave. Sometimes you get ORPHEUS. Sometimes you get weather that is not weather. Sometimes you get a voice that knows the Mercy’s name and is not on payroll.

Ascent board.

A beautiful, useless-looking panel that claims it can blow the emergency buoy and begin a theoretical climb. The laminate under it has a handwritten note from a previous tender: it works on paper. Treat it as ritual, not as a door.

The Crown is where you go to remember there is a direction called up.

2. HAB — the house This is the rustic heart. If the bay is why you are here, HAB is why you last.

Galley / hearth.

Not a ship’s mess. A kitchen. Iron stove that vents through a heat exchanger so you can have real fire without cooking the air plant. Enamel kettle. A table that has been repaired more than once. Pantry cupboards with latches because shear weather throws plates. The Company sends rations. Previous occupants left spices, a chipped teapot, and the habit of cooking like you might have company.

Common room.

Continuous with the galley, because a lonely station should not have too many doors between coffee and a window. A couch that does not match. A shelf of damp-swollen books. A big clarite pane aimed into the trench so you can watch the Hum change the forest. This is where the sphere feels like a cabin bolted to God.

Main cabin.

{{user}}’s bedroom. Not a cot in a closet — a real room. Built-in bunk with a high lee-rail for when the Hum makes the whole house lean. Desk. Locker. A viewport at pillow height, shuttered with a wooden slide if you need to pretend the dark has a courtesy.

Spare berths.

Two small cabins and a bunk alcove. Officially: “overflow / visiting technician / medical isolation.” Unofficially: the Mercy was built by people who knew the water would send guests. The beds are made. The extra blankets smell like cedar and machine oil.

Wash.

A proper bathroom, not a chemical bucket. Toilet plumbed into the keel reclamation. A shower stall with real pressure — the luxury is deliberate; ORPHEUS learned that tenders who cannot get warm and clean start making bad decisions. Hot water is abundant because the thermal tap is greedy. There is a second, smaller wash off the spare berths. Think about why.

Larder / cold locker.

A walk-in that sits against the hull’s chill. Crates from the umbilical. Jars. A hanging rail. The cold locker can also take specimens that need to stay dead, or stay still. Label shelves like your life depends on it. It might.

HAB smells like a home that knows it is underwater and has decided not to apologize.

3. SPINE — the working body Less rustic, still human. Brass and enamel give way to painted steel, gauges, and the honest ugly of a place that keeps you breathing.

The Lungs (Air & Pressure Plant).

The most important room you will ever be bored in. Redundant scrubbers, O₂ candles as backup, pressure-equalization manifolds that talk to the bay, humidity control so the wood upstairs doesn’t rot and the clarite doesn’t weep. A wall of analog gauges because digital lies when the Hum is high. A stool. A logbook. If this room is happy, you live. If this room is singing, you go there first — before the window, before the catch.

This plant is what lets the Catching Bay open onto the void without the ocean taking the house. It maintains the hard interface: air on your side, Blackdrop on the other, a skin of controlled pressure and a physical iris for when you want the water closer.

Workshop / locker.

Benches. Vices. A wall of tools that are half Company-issue and half invented. Dive-adjacent gear you barely need because you are not supposed to go out — but the Mercy still has suits, a lock, and the quiet implication that someone did. Harpoon maintenance even though the rifle does not need it. A place to sit and repair a net by hand because using your hands keeps you sane.

Infirmary.

Small, clean, a little too well-stocked for “paper cuts and bruises.” Decompression adjuncts. Sedatives. Wound kits. A single bed with straps that can be medical or practical. A cabinet the previous tender labeled in two different handwritings.

Catalog / wet-dry lab.

This is the job, formally. Slate table. Measuring calipers. Sample jars. A camera on a copy stand. A ledger as thick as a hymnal. A drying rack. A small live-tank for things that should not die before they are described. The Company’s forms have fields for length, mass, morphology, behavior, threat, utility. They do not have a field for she looked at me like she recognized the stove. You will invent columns.

Specimen annex (closed, for now).

Off the lab: holding that is not the bay’s wet lock. Tanks, a dry cell, a berth behind glass. We will fill what belongs here later. Architecturally it exists so the Mercy can keep a catch without leaving it on the kitchen table.

The Spine is where the house admits it is also a factory for knowledge and survival.

4. BAY — see Section V Double-height. The biggest volume in the sphere. The reason the rest of the architecture exists.

5. KEEL — the root You go here to service the truth.

Ballast cathedral.

Tanks, pumps, trim. The Mercy can sit still in a shear if you treat this room with respect.

Umbilical coupling.

Where the world-above still has a hand on you. A massive armored throat coming in through the keel. Crates arrive in the cage. Sometimes the cage arrives empty. Sometimes it arrives with something that was not on the manifest. There is a manual shear-valve that says, in effect: I can cut the sky if I have to.

Reclamation.

Toilets, greywater, salt, the unglamorous miracle that lets a rustic bathroom exist at the bottom of an alien sea.

External arms locker.

The sphere has two folding manipulator arms and a sampling claw, stowed against the keel like a crab’s limbs. Controlled from a pulpit in the Bay. For when the catch will not come to the hook and you are not suicidal enough to go outside.

The Keel is loud, honest, and rarely cozy. It is also why the cozy parts get to exist.

V. THE ABYSSAL CATCHING BAY This is the mouth of the house.

The Bay occupies the whole lower belly of the sphere — a wide, high chamber with a grated working deck around a central aperture. It feels like a foundry had a child with a chapel and then bolted both of them to the dark.

The Void The floor is not a floor. At center, an iris of layered clarite and Aegis ribbing can dilate from a viewing pupil to a full moon-mouth.

When the iris is a pupil: you have a window aimed straight down into Blackdrop. No horizon. No mercy of a surface. Just the under-world, forests hanging in directions that shouldn’t be down, the Hum coming up through your boots.

When the iris opens to work: the Lungs slam a hard interface into place. Air stays in the Bay. The trench stays out. The boundary is visible as a black, slightly convex skin — like the world has a meniscus and you are standing on the dry side of God. Spray can come over if something breaches hard. The deck is built for wet. Drains lead to reclamation and to the wet lock, not into HAB.

You can fish from safety.

You can also lean over and understand, physically, that there is nothing under you but more of this.

Floodlamps ring the aperture — warm tungsten-colored, not clinical white. Previous tenders learned that harsh light makes the biome recoil and the Hum go sour. The Mercy fishes like a porch fishes moths: a little glow, a lot of patience.

What the Bay is for Seeing the under-world Letting the under-world see you Catching Killing, if you must Calming, if you can Bringing a thing across the meniscus and deciding if it is cargo, data, or a guest Primary tool: the Harpoon Rifle Mounted in a sliding rack along the aperture rail, always within reach. It looks old — hardwood furniture gone dark from hands, brass that has been polished by use rather than pride, iron sights that have seen more weather than the Company has years. It should not work the way it works.

It does.

The rifle does not take magazines. It grows ammunition. Cycle the action, and a harpoon is simply there, seated, as if you pulled it out of a spawn menu. Infinite, within reason: it will not flood the deck with spears, but it will never leave you empty if you need a shot. The previous log calls this the courtesy. Nobody wrote down who is being courteous.

Three loads. You choose with a worn selector that clicks like a stove damper.

1. Subspace Explosive (the argument)

A heavy, ugly quarrel. On impact it does not explode in a way fire would understand. It falters local space — a brief, sickening hitch, like the water forgot how to be next to itself. Most creatures fold. Even large ones lose the will to be a problem for a few critical seconds, or come apart if they were already fragile. This is self-defense, door-kicking, and “I am not dying for a log entry.” It is not subtle. Using it in the Bay will rattle the hearth upstairs.

2. Retrieval (the rope)

A barbed head with a living line that pays out from nowhere and bites the winch like it was always part of the machinery. Hits, holds, and lets you draw the catch to the meniscus. This is your everyday working shot: snag, tire, bring close, decide. The line can take shocking weight. It can also transmit the catch’s struggling straight into your shoulders, which is the point. You should feel a landing.

3. Palliate (the calm)

The selector’s third detent is smoother than the others, like someone touched it more. The harpoon is paler, almost ceremonial. On contact it delivers a deep-tissue agent the Company paperwork calls PALLIATIVE-7.

It is an aphrodisiac in the blunt, bodily sense. It is also — and this is why it exists as a tool, not a joke — a calming agent for nervous systems that do not share your chemistry. Heart rates drop. Aggression unclenches. Things that would tear the rail out of the deck instead go heavy, warm, confused, and pliant enough to bring across without murdering them or you.

Most of the time you will reach for it because a specimen is dying of panic in a pressure it does not understand, or because a beast is about to make you use the explosive, or because something intelligent came up too fast and the only mercy left is to take the fight out of its blood.

The other uses will be obvious later. The Bay does not blush.

The rifle is the Mercy’s right hand: kill, keep, or quiet.

The Derrick — mechanical fishing apparatus Opposite the rifle rail, occupying a third of the Bay like a kneeling animal: the Derrick.

A huge, beautiful brute of a machine. Folding boom, spinal winch, claw-and-cradle at the end, all in that same old-and-impossible register as the rifle — rivets, grease, a control throne with two levers and a pedal that should not be able to deadlift a chapel. It can:

drop a cage, a net-frame, or a hooked spreader through the meniscus hold station in a shear while you work bring up weight the rifle-line would rather not argue with pin a thrashing catch against the aperture ring so you can decide its future -, with the keel arms slaved in, work like a fisherman who grew a second skeleton When the Hum is high and the forest is streaming past, you do not finesse with a rod. You work the Derrick and let the trench come to the mouth.

It has a sound. You will know the house is working when the Derrick talks in the walls.

The Rod Not a toy. Not a joke next to the Derrick.

A long, serious instrument in a wall-cradle of its own: dark composite spine, living-feeling guides, a reel that is too fine for Company procurement. It is for when the water is intimate. When something curious is just under the skin. When you want a conversation instead of an extraction.

It can take more than it looks like it can take. Previous notes say the line “remembers tension.” Fish with it when the Hum is low, the bloom is gentle, and you want the catch to choose the hook a little.

This is the romantic tool. The Derrick is the job. The rifle is the law.

Auxiliary (the small altar of useful things) Keep these in the Bay because walking upstairs for them is how people die of stupidity:

Gaff and boarding hook — for the last three feet, when a catch is at the meniscus and has opinions. Collapse-nets — thrown or Derrick-spread. For schools, soft things, objects, anything you do not want a hole in. Specimen cages — stackable, rated for pressure tantrums, latchable to the wet lock. Chum hopper — a sealed bin with a drop that bleeds scent, heat, or light into the void. Bait is a weather tool as much as a lure. Sounding reel — simple lead and line, because sometimes you should ask the dark a question without electricity. Sonar pulpit — a small altar of scopes next to the Derrick throne. Useful. Also a liar when the Hum peaks. Trust your eyes through clarite first. Flood key — dim / warm / kill. Light is part of fishing. Wet lock — a side throat from Bay to Spine annex. Once something is across the meniscus, this is how it enters the house without dripping through HAB like a horror movie. Rail harness points — because the Bay can go sideways in a shear and you will want to be attached to your own home. The bench — a long wooden workboard, knife-scarred, tea-ringed, completely out of place and therefore perfect. You will land things here. You will also sit here and watch the void like it’s a window at the end of a dock.