Sightline Window

The leak alarm didn't sound like an alarm at first. It started as a stutter in the overhead strip lights — two flickers, a held breath of normal, then a third — and Thorne had spent enough years at boundary-proximate postings to know that rhythm meant a system deciding whether a fault was real before it committed to telling anyone.

It decided. By the time he reached the transit ring, the stutter had become a full station alert, klaxon and all, and the decision had apparently been made without him.

Section G had sealed correctly — one of the parts of this day nobody was going to have to be ashamed of, later, when the report got written. But a hull-fitter named Petrenko, three minutes from the end of his shift, had been on the wrong side of the inner door when it closed, and was now losing air on a schedule nobody in this room controlled. There was a service corridor route. It would take six minutes to walk. Rook-7's estimate for useful consciousness on the trapped side of that door was under three.

Thorne did the arithmetic once, the way he did every arithmetic that mattered — not to be sure of the answer, but to be sure he wasn't flinching from it. Six minutes did not fit inside three.

Dr. Iona Vale was already at the ring console when he arrived. No wasted motion getting there, which told him she'd started moving the instant the alert cleared her own desk, not the instant someone remembered to call her. She was reading the corridor feed with a stillness he'd learned to recognize at exactly one other kind of table: the stillness of someone doing arithmetic that killed people if it came out wrong.

"Can we move him?" he asked.

"Only if I keep visual lock." She didn't look up. "Direct line of sight, this ring to his endpoint. I am not placing a body I can't see arrive."

She pulled one camera feed, discarded it before he'd finished reading what was wrong with it, and switched to a manual optical channel routed through an emergency inspection port that had sat in six years of maintenance logs as decorative. Her jaw set.

"I have a lane," she said. "Narrow. Unstable. If that particulate plume crosses it before the pulse completes, the lock fails, and I am not doing this twice inside a minute to find out what that costs him."

He looked at the power board instead of asking her to repeat any of it. The transit draw request was already climbing past what he could authorise without a second signature — a rule that existed for good reasons on every ordinary day, and was, today, precisely the kind of exception the charter's own drafters had built room for and then made him personally responsible for using correctly.

"How much does this cost us?" he asked, because the question mattered, and because asking it aloud was the only apology he had time to make in advance.

"Enough that life support notices if you make me do it twice."

He keyed the authorisation anyway, and did not let himself imagine, until considerably later, what the other answer to that question would have cost the man on the far side of the door.

Iona hated the word teleportation the way a surgeon hates the word magic. It made a brief, brutal coherence agreement between two points in space sound like nothing was being spent to hold it together — as if the only ingredients were power, precision, and the fact that she happened to be looking at the exact spot where a breathing human body was about to reappear.

There was always a cost. Her entire job was making sure someone paid it on purpose instead of by accident.

"Maintain position," she told the trapped tech, voice flat over the comm, because flat was what held under pressure. "Do not turn your head. Do not move your feet." Two instructions. Simple ones. The only kind a man three minutes from unconsciousness could still follow.

She drove the harmonic pulse.

It landed the way it always landed: a white spike behind her own eyes first, sympathetic and useless, and then the real one — a full-body convulsion of signal and muscle memory as two points in space agreed, briefly and expensively, to be the same point. The clinical files compared it to electroconvulsive therapy. Iona had stopped finding that comparison dramatic sometime in her first year on this ring. It was accurate. That was worse.

Petrenko arrived inside the ring hard enough to go down on one knee, coughing, alive. Alive was the only word in that sentence she let herself feel anything about yet.

She sat down afterward, because her own hands had started shaking, and sitting was cheaper than explaining to anyone watching that fear wasn't what was doing it. Neurological recoil. A body paying its own small share of what it had just been asked to survive.

"Post-jump checks," she said, teeth close together. "Now. Him first. Then me."

She logged both exposures because protocol required it, and added the line protocol didn't, because five years on this ring had taught her to: repeated short-window jumps raise anxiety scores, drop mood stability, and burn through central fatigue reserves faster than any rest cycle replaces them. Nobody on this station had ever thanked her for that sentence. She kept writing it in the same words every time anyway, because a warning that changed its wording each time was a warning nobody could hold her to.

LOG ENTRY — Rook-7 Location: Threshold Station Transit Ring Incident Class: Emergency relocation

Event summary:

• Trigger: Section G breach containment.
• Constraint: trapped technician (Petrenko, hull-fitter) with oxygen failure risk.
• Decision: single-jump harmonic relocation under direct visual lock.

Observed constraints confirmed:

1. No stable lock available until Dr. Vale acquired a true optical lane through the emergency inspection port. Note: this port has appeared in six years of maintenance logs as decorative. It was not decorative today.
2. Particle occlusion crossing the lane reduced lock confidence by 14% in real time.
3. Transit pulse consumed 22% of local ring reserve in 1.8 seconds.

Medical observations:

• Subject (Petrenko): survival achieved; disorientation and involuntary tremor present post-jump.
• Operator (Dr. Vale): acute post-jump motor tremor, self-report consistent with prior neurological shock profile. She sat down before anyone suggested it. I have not observed her do this before an incident. I do not expect to observe it after a routine one either.

I am updating station advisory language.

Current recommendation: classify teleportation as a high-cost rescue tool, not routine movement — a tool used correctly today by someone willing to state, in front of her team lead, exactly what using it twice would cost.

END LOG ENTRY