Ava

The summons this time came with an edge to it Rachel hadn't felt from Seli — a request delivered by attendant rather than by Ar himself, formal in a way that made William raise an eyebrow when he read it, and Rachel understood, walking the long corridor toward the settlement's central science division two days after their arrival, that whoever they were about to meet, the meeting had not been Seli's idea.

"You don't have to come," Rachel told the others, at the door. "Seli said this one specifically requested me. I don't think it's an accident."

"I don't love you walking into a room alone with someone from the faction that wants us gone," Darrell said.

"I don't think she wants me gone specifically. I think she wants to understand what I know. Those aren't the same thing." Rachel found, to her own mild surprise, that she believed it. "Let me try. If it goes badly, I'll shout loud enough you can hear it through the wall."

Darrell didn't look thrilled, but he nodded, and Rachel walked the rest of the corridor alone, past workspaces that grew steadily more cluttered and lived-in the closer she got to the science division's core — the first genuinely disorderly space she'd encountered anywhere in Oris Norma, tables covered in instruments and half-finished data structures, the visible mess of people who were still, despite everything, actually working.

The woman waiting for her in the central workspace was younger than Rachel had expected, though she was beginning to understand that her sense of age here was unreliable — tall, like everyone, with a coiled, restless energy that read immediately as a kindred spirit to anyone who'd ever spent a career unable to sit still around an unsolved problem. She looked up from a projected data field the moment Rachel entered, and something in her face did a quick, unguarded flicker of surprise before settling into careful composure.

"You're smaller than the reports suggested," the woman said, which was such an odd thing to open with that Rachel almost laughed.

"I get that a lot. Even at home."

"I meant it as data, not insult. I've been trying to build an accurate picture of Old World physiology from fragmentary archive renderings for years, and most of them exaggerate. It's useful to have a real reference point." A pause, and something that might have been the ghost of an apology. "I'm Aviaosn Ze. Most people shorten it to Ava, when they're being kind, which I'll admit is not always."

"Rachel Trust."

"I know who you are. I've read every word Seli's office has compiled about your arrival, twice, and I still don't fully believe it." Ava gestured toward a seat near the data field, and Rachel noticed, sitting, that the projection hovering above the table wasn't administrative data at all — it was astronomical, a stellar model rendered in painstaking, obsessive detail, the kind of visualization Rachel recognized instantly as belonging to someone who had spent far more hours on it than any job required. "I understand you're the one among your crew who studies stars."

"I am."

"Then you're the one person in this settlement, possibly the only person in this settlement, who might actually understand what I'm about to show you without me needing to simplify it first." Something shifted in Ava's expression — the careful administrative wariness Rachel had braced for giving way, unexpectedly, to something rawer and more urgent. "I was told you'd be difficult. Guarded, defensive, unwilling to help people who've spent the last two days treating you as a resource line item rather than a person. I want you to know I understand why you might feel that way about me specifically. I've been the loudest voice arguing your arrival is a cost this settlement can't afford. I still believe that, in the abstract. But I would be lying to you, and to myself, if I pretended that belief was the only thing I feel standing in this room with an actual astrophysicist from the Old World for the first time in my career."

Rachel looked at the model floating above the table — its layered shells, its careful annotation of a core structure she was beginning, with a slow and specific dread, to recognize — and felt the same electric focus settle over her that she'd felt looking at the Sister Star ninety-three days into a mission that already felt like it belonged to a different life. "Show me," she said. "All of it. Don't simplify anything."

Ava's face, for just a moment, opened into something like relief.

"This is our sun," Ava said, and the model rotated slowly, opening layer by layer as she spoke, revealing structure Rachel's trained eye read immediately as trouble. "Or rather, this is our best current model of it, built from several centuries of observation and a great deal of inference filling the gaps our instruments can no longer resolve as precisely as they once could — another symptom of the same decline, if I'm honest, though that's a separate conversation."

"Talk me through the core," Rachel said.

"Fusion rate has been declining for longer than reliable records extend. Not dramatically, not in any single generation's lifetime — that's part of what makes this so difficult to make people care about, the timescale is too long for urgency to register the way it should. But the decline is real, and it is accelerating, and the models my predecessors built generations ago all converge on the same eventual outcome, give or take a margin of error nobody has ever been able to fully close." Ava's finger traced a line through the projection, and Rachel watched a curve she recognized in its shape, if not its exact cause, from her own training — a star running down, not exploding, not collapsing dramatically, just quietly, gradually failing to do the one thing a star exists to do.

"How long," Rachel asked.

"Generations. Not centuries in the way you might be imagining relief in that word — I mean, perhaps, six to ten generations before conditions on the surface become genuinely uninhabitable, and considerably fewer than that before agricultural stability begins failing badly enough to force difficult choices about which settlements survive and which don't. It is not an immediate catastrophe. It is a slow one, which I've come to believe is worse, in its way, because slow catastrophes don't produce heroes. They produce exhaustion. Generation after generation inheriting a problem slightly worse than the one before, with slightly less will to solve it, because the crisis never arrives all at once in a form dramatic enough to demand everyone's full attention."

Rachel studied the model in silence for a long moment, running her own trained eye over the fusion curve, the core density readings, the layered structure Ava had built with what was clearly years of obsessive, underappreciated care. "This is good work," she said, finally. "I want to say that plainly, before anything else. Whoever built this model understood what they were doing."

"I built it. Most of it, at least — I inherited a foundation from my predecessor and have spent a career refining it." Ava's voice carried a complicated mixture of pride and something closer to grief. "It is also, I should tell you honestly, work that has convinced almost nobody outside this room that it matters. I present updated projections to the council twice a year. Attendance has declined steadily for as long as I've held this position. People stop attending meetings about problems they've already decided are unsolvable. I understand the impulse. I don't share it, but I understand it."

"What have you tried?" Rachel asked. "Solutions. Interventions. Anything."

Ava exhaled, and for the first time since Rachel had entered the room, something like genuine exhaustion showed through the careful composure. "Everything within the scope of physics my civilization still actively practices. Stellar engineering theory that predates my career by centuries, refined and re-refined, mostly on paper, because the resources required to actually attempt any of it at scale would require a societal commitment we no longer have the will to make. Managed fusion intervention — introducing engineered catalysts to the core to slow the decline — modeled extensively, never attempted, because the risk profile terrifies people who have already decided risk isn't worth taking for a problem that won't kill anyone currently alive. Orbital mitigation — buying time through engineering rather than solving the stellar problem directly, essentially building our way around a dying sun rather than fixing it — which has more political support, marginally, because it doesn't require touching the star itself, but which every serious model I've built suggests only delays the crisis by a handful of generations rather than solving it."

"And nothing's worked."

"Nothing's been tried seriously enough to know whether it would work," Ava said, and the frustration in her voice was sharp enough that Rachel understood, immediately, exactly how many times she'd had this argument before losing it. "That's the actual crisis, Rachel. Not the sun. The sun is just physics, and physics is solvable, given enough will and enough resources and enough people who still believe trying is worth the cost of failing. The actual crisis is that my civilization ran out of will generations before it ran out of time, and I have spent my entire career trying to convince people that those are not the same thing, and mostly failing."

Rachel sat with that for a long moment, looking at the model still rotating slowly above the table, at a star running quietly down toward an ending that six to ten generations of people had apparently decided was easier to accept than to fight.

"I think I understand something about that," she said, finally. "Where I'm from — my own world, before all this — funding for space exploration had been declining for decades. Not because the science stopped mattering. Because people stopped believing it was worth fighting for, the same slow, generational exhaustion you're describing. I spent six years of my career arguing with rooms full of people who'd already decided the argument wasn't worth having." She looked up, meeting Ava's eyes directly. "I lost that argument more often than I won it. But I never stopped thinking it was worth making. And I think, sitting here, looking at this model, that you haven't stopped thinking that either, whatever it's cost you to keep believing it alone."

Something in Ava's face cracked, briefly, unguarded — not quite tears, but close enough that Rachel understood she'd touched something raw and mostly unspoken.

"No," Ava said, quietly. "I haven't. Though I'll admit, some days, it feels like a very lonely thing to keep believing."

"Why did you ask for me specifically," Rachel said, after a moment. "You've spent two days publicly arguing our presence here is a cost this settlement can't afford. I don't think you called me in here just to show me a model, however good it is."

Ava was quiet for a long moment, and when she answered, her voice had gone careful again, weighing something Rachel understood was costing her more than the science had. "Because I am tired of losing this argument, Rachel. Because I have spent a career building the most complete model of our dying sun that exists in this settlement, and it has convinced almost nobody that trying is worth the risk, and I do not have the luxury of believing that will change simply because I keep presenting better data. I need something the data alone hasn't been able to give me. I need a variable nobody has ever had to argue against before, because nobody has ever seen it." She gestured, faintly, encompassing Rachel, the crew, the whole impossible fact of their arrival. "You are that variable. Whether you intended to be or not."

"You want to use us," Rachel said. Not accusatory — just naming the shape of the thing honestly, the way she suspected Ava would prefer.

"I want to use what you know," Ava said. "Your civilization approached solar physics and engineering from angles mine abandoned generations ago — not because those angles were wrong, but because the people who once pursued them grew old and were not replaced by others willing to take up the same difficult, unglamorous work. I don't know, with any certainty, that your perspective will solve what mine hasn't been able to. I know that four million years of accumulated caution has left me with almost nothing left to try that hasn't already been tried and abandoned. You are, quite literally, the newest idea I have had in longer than I can account for."

"Does Seli know you called me in here?" Rachel asked. "She made it sound, two days ago, like the two of you were on opposite sides of this."

"Seli knows. I told her myself, this morning, before I sent the summons." Ava's mouth twisted into something rueful. "I imagine that surprises you, given how the council session must have been described to you. I want to correct something, if I can. Seli and I are not enemies. We are two people who agree on almost everything about the shape of the crisis and disagree, sharply, about what risks are worth taking to address it. She believes your arrival is worth the resource cost because it might give this settlement a reason to try again. I have spent two days arguing the resource cost is too high to gamble on a maybe." She paused. "I still believe that, in the council chamber, in front of people counting provisions and housing capacity. In this room, in front of an actual astrophysicist holding an actual, current model of the thing I've spent my career failing to fix — I find I believe it rather less than I did yesterday."

"That's not a small thing to admit."

"No," Ava agreed. "It isn't. I would ask that you not repeat it to the council on my behalf. I'm not yet ready to have that argument in public. I would like to have it with you, first, in private, and see whether it survives contact with someone who might actually be able to help me solve the problem instead of merely believing it's solvable."

Rachel looked at the model again — the slow, patient decline of a star that had, by Ava's own account, generations left before crisis and considerably fewer before hard choices, a crisis too slow to produce urgency and too real to simply ignore — and felt something settle into place in her chest that she recognized, with a small, private shock, as purpose. Not the abstract, aching grief she'd been carrying since the graveyard. Something sharper. Something with an actual shape she knew how to hold.

"I'll need to talk to the others," she said. "This isn't a decision I get to make alone, and it isn't a small thing you're asking. But Ava — for what it's worth, and I mean this as one scientist to another, not as diplomacy — I don't think you're wrong to keep believing this is solvable. I think you've just been alone in believing it for longer than any one person should have to be."

Ava didn't answer right away. When she did, her voice had gone rough in a way that told Rachel the careful, guarded composure she'd walked in wearing had finally, genuinely cracked.

"Thank you," she said. "I don't think anyone in this settlement has told me that in longer than I can remember."

Rachel left the science division a while later with the model's shape still turning behind her eyes — a star running quietly toward an ending, and a woman who had spent her whole career refusing, alone, to let it — and understood, walking back toward the others, that whatever choice the four of them eventually had to make about this world, it was no longer an abstract one. It had a face now. A name. A slow, patient, terrifying curve on a projection that Rachel intended, one way or another, to help correct.

She found Darrell waiting near the entrance, exactly where she'd left him, and something in her face must have told him the meeting hadn't gone the way he'd braced for, because his posture eased before she'd said a word.

"Well?" he asked.

"She's not our enemy," Rachel said. "She's just terrified, and she's been terrified alone for longer than I think anyone in that settlement has bothered to notice. She showed me the model, Darrell. The actual science. It's good work — better than good, it's the kind of work that should have a whole institution behind it, and instead she's been doing it by herself, presenting it twice a year to a council that stops showing up." She shook her head slowly, still turning the shape of the star over in her mind. "I think I understand, now, why Seli said our arrival wasn't an accident she intended to waste. I think Ava's the reason. Whether Ava's ready to admit that to the council or not."

"And what does she want from us?"

"Eyes on the problem. A fresh angle. Maybe nothing — she was honest about that, she doesn't know if we can actually help. But she asked, Darrell. Not the council, not Seli through official channels. She asked me, scientist to scientist, in a room with no formal record, because she's run out of every other idea and she's not ready to admit that in public yet." Rachel met his eyes, steady. "I think we should help her. Not today. Not before we've talked to William and Xavier and actually decided this together, the way you said we should. But I think the answer's going to be yes, and I wanted you to hear that from me honestly, before we walk back in there and pretend I don't already know what I think."

Darrell studied her for a long moment, and something in his expression — tired, still carrying its own private grief, but underneath it, unmistakably, curious — told her he wasn't going to argue.

"Then let's go talk to the others," he said. "Together, this time."