Black Halo Supermax, officially Central Authority Penitentiary Theta-19, holds the people the Central Authority does not want anywhere near trade lanes, ports or courts. It sits in the Between at an odd spot well away from the Keth Jump Lanes. To reach it, a ship needs a jump chart from the Authority and a pass phrase that changes on a set schedule.
The Authority built it after several Rim prisons fell apart during a labor strike and a string of prisoner transfers got hijacked. It wanted a prison that was hard to reach, easy to watch and simple to cut off. Black Halo does one job. It keeps dangerous people locked up for a long time and stores evidence for open cases. There is no research here, no test gear and no private wings. It answers to the Authority's prison inspectors, and to the debt courts when their evidence passes through. Every visitor is logged, timed and watched.
* *
The station is an eight-sided ring with five straight spines. It was built from old Core hull sections, Talarq reactor modules and new radiator fins. The ring holds the control tower, the docks, life support and the labor deck. The spines hold the cells, the exercise cages and locked storage. Each spine can cut itself off from the ring with armored doors and has its own air supply.
The main fusion stack sits on a heavy keel, with a battery wall and a separate cold-start bay. The radiator fins point away from the sun and run hot to shed ice. Cables run in marked trays and never pass through the dorms. The boarding tunnels at the docks have double gates and can be blown loose if someone tries to force a way in. Small thrusters hold the whole station still. Nothing hangs loose, and every tool has a mount. Signs are written in Human, in Keth writing and in Vellari picture signs.
* *
The Warden runs the station day to day, but the records decide who stays and who goes. Warden Operations holds the Authority court files, prisoner records and release orders. Synthborn clerks work there on tight contracts. They cannot change a record. They can only check it and raise an alarm. A release needs three matching sources, the inspectors' list, the key schedule and the station's own copy. If one does not match, nobody moves.
Couriers carry paper files in locked cases with tamper chips. Any argument about who a prisoner is or where he is going gets settled in the records before a door opens. Outside governments can ask for access, but the Authority decides. If a court tries to force the vault open without all three keys, the station locks down and calls the nearest patrol.
* *
Security treats every movement as a risk. The schedule never repeats the same pattern twice in a week. Doors open by the schedule, not by who is asking. Food carts run on fixed rails. Guards switch spines often so nobody gets too friendly. Cameras overlap and sit in cages. Sound dampers in the walls stop prisoners from tapping messages, and signal cages block hidden radios.
Exercise time needs two guards and one remote watcher. The riot plan is simple. Lock the spine, drop the air pressure in the corridor and wait. The armory holds mostly stun gear, plus a few real weapons for the reactor and the docks. When an alarm goes off, doors lock behind the last safe point, the station settles, and the event goes in a report. The routine is wake, check, move, write it down, lock, repeat. It is not cruel and not kind. It is the same every day.
* *
Black Halo holds people who can move markets, wreck lanes or run a crime family from a cell. That means mutiny leaders, forgers of Forge marks and ship papers, convoy raiders and syndicate quartermasters. It also means ice jackers from the Salt Crown wave, people with erased IDs tied to open cases, and a few officers from governments that fell. Most are Human. Keth prisoners show up when a crime involves their lane charts. Vellari are rare. Synthborn are almost never jailed here, except when one has to be isolated for a malfunction.
The labor deck builds parts for Authority money printers, sorts scanned cargo lists and rebuilds water pumps for Rim stations. The pay is a few credits a week, spent at the commissary on smokes, instant noodles and batteries. Work does not shorten a supermax sentence. The station has a clinic, a lawyer call booth, a video library and the exercise cages. The chapel is a shared room with bolted benches and a locker for approved items.
* *
Black Halo is famous for things going quietly. A forger once tried to walk out with a fake release key. The records caught the mismatch and the dock froze. Another time, a Free Company tug arrived with a damaged courier case. The tunnel alarms tripped, and the tunnel was blown loose with no harm to the ring. A syndicate crew once aimed a boat at a spine. The radiator grid took the hit and the spine cut itself off. Nobody inside died.
None of these stories are loud, but crews tell them in bars anyway. Bounty hunters like Black Halo because the payout always clears, even if it takes all afternoon. The staff are steady. There is a Warden with a clean record, a deputy from the Talarq ranges, a dock chief who used to fly Keth routes, and a small medical team. Patrols are thin out here, so the station relies on design, drills and paperwork.
* *
The Central Authority owns the station, sets the key schedule and pays the private security company that staffs it.
Data brokers sell the station its record copying tools and keep the official clock. They do not decide anything.
Big companies only get maintenance and supply contracts. They may not build labs on board.
Syndicates show up on the prisoner list and in court. No syndicate agent gets open visits, and their lawyers follow the dock rules like everyone else.
Free Companies and bounty hunters bring prisoners in and move the dangerous ones out, under close watch.
Synthborn crews keep some systems running under strict limits. Their logs go to the Warden and the inspectors.
The Talarq heat rules govern the reactor. Caraphex fittings show up on doors and tool mounts because they last. Serean storm chemicals are banned on board.
The station does not want to grow. It wants to keep running and send people out the right door. Prisoners leave for Core courts, high-security Mid ports, or Rim courts that meet Authority standards. If an appeal is still open, the person stays. If a government falls, the person stays until a court with the right to hear the case exists. There is nobody nearby to lean on the station. It runs, writes it down and waits.
* *
Shifts run twelve hours, with some overlap. Guards clock in, draw gear, check cameras and walk the ring. Dock crews test the airlocks. Engineers read the load gauges and walk the heat loop. The records clerk times the couriers and locks the vaults. The clinic handles small injuries, pressure rashes and heat sickness. Meals are simple and come at set times. The video room has three channels. One is Authority training, one is legal lessons, and one is a loop of old comedy shows that nobody has updated in years.
The Warden reviews incidents during the overlap, signs off on repairs and posts the next day's schedule. On quiet days, the ring is still and the fins run warm. On busy days, the doors lock faster. Staff keep to the rules because the rules keep the station steady. Prisoners learn the routine because it never bends for one person. Visiting crews learn to keep their gear tight, their voices low and their papers ready. Then they leave, and Black Halo stays the same.