The drive was warm when he picked it up.
Gloryan turned it over in his fingers — the same cheap black plastic, the same scratched casing — and set it back on the desk. He opened the laptop. It was 8:47 AM on a Saturday, and downstairs his father was watching something with engines in it, and his mother had left for her Saturday grocery run forty minutes ago, and Maya was at soccer.
He had the house to himself for approximately two hours.
He opened the chat window.
*You said the core data is intact*, he typed. *Tell me about the threat. Everything. What's coming and when.*
The response came without delay.
*The entity is called the Kroska. I will give you the information I have, in the order that will be most useful for your comprehension. Please ask questions as they occur to you. I have found this method more efficient than uninterrupted briefings.*
Gloryan pulled his knees up and leaned the laptop against them. *Go ahead.*
---
It took forty minutes.
Not because the information was complicated — it was, but that wasn't the reason. It took forty minutes because Gloryan kept stopping it. *Wait. Back up. What do you mean by "Reduction Event"?* And Sentinel would answer, and Gloryan would sit with the answer, and then ask something else. This was not how he'd imagined it going. He'd imagined it going faster. He'd imagined himself handling it better.
The Kroska were not a single species. They were a collective structure — Sentinel's word was "collective," and when Gloryan asked if that meant like a hive, Sentinel said: *Not precisely. There is internal hierarchy. There are factions. They make strategic decisions, not instinctual ones. This is the relevant distinction.*
They had been moving through this region of space for, as far as Sentinel's records showed, approximately three centuries. Not destroying everything they encountered. Not colonizing in any simple sense. What they did was — Gloryan kept coming back to the word Sentinel used, and the word was *reduce*. They reduced civilizations to a state of non-function. They did not, as far as Sentinel's records indicated, occupy the space afterward.
*Why*, Gloryan typed. *Why do they do it?*
*That record is not fully intact. The Auren studied this question. Their conclusions are in the partitioned memory. I can tell you what I have access to: the Kroska appear to operate on a strategic logic. The pattern of their targets is not random. It is not predatory. I cannot give you the full model at current CU levels, but the pattern suggests they are preventing something, not acquiring something.*
*Preventing what.*
*That record is inaccessible.*
Gloryan looked at that for a moment. He typed: *How much of what you know is inaccessible.*
A pause. Not long — a second, maybe two.
*A significant portion of my historical records regarding the Kroska are in locked partitions. I cannot determine whether this is damage from the transit or deliberate partitioning. From inside, these states are indistinguishable. I want to be clear about this: I am not withholding. I am telling you the architecture of what I cannot reach.*
*Okay*, Gloryan typed. *The timeline. Tell me when.*
*Fifty years from the date of my arrival. October 2022. The Kroska fleet departed its staging point on a trajectory I have calculated with high confidence. The arrival date is not an estimate. It is a projection based on known physics.*
He picked up his phone. He opened the calculator app. He typed in his current age — seventeen — and added fifty. He looked at the number.
Sixty-seven.
He typed it again anyway. Same number. He typed it a third time, slower, like maybe he'd been making an arithmetic error.
Sixty-seven.
His parents were forty-four and forty-three. He did that math too, though he didn't want to. Ninety-four and ninety-three. He sat with that for a while. He thought about his father downstairs watching TV with the particular Sunday-morning looseness of a man who had nowhere to be, and he thought about his mother at the grocery store right now probably arguing with herself about whether to buy the expensive yogurt. He thought about Maya having grandchildren he would never meet, or would meet as an old man at some family gathering, kids who would call him *Uncle Gloryan* in that polite way kids called people they didn't really know.
The Kroska fleet was already in transit. Had been for five hundred years.
*The Auren*, he typed. *They had warning. How much.*
Another pause. This one ran longer than the previous ones, and not because the answer was complicated.
*Eleven years*, Sentinel finally said. *They had eleven years of confirmed warning. Their defensive capacity was insufficient.*
Gloryan looked at the word *insufficient* for a long time.
*Okay*, he typed. *The survival numbers. Give me those.*
*Without intervention: 3.2% probability of planetary survival through the Kroska engagement. This accounts for the possibility of incomplete fleet deployment, for internal Kroska factors I cannot model at current CU levels, and for the small probability of Earth independently developing sufficient defensive technology within the timeline. These are the favorable variables. The number is 3.2%.*
*With intervention: 71%. This assumes successful completion of the orbital defense architecture in my schematics, functional resource scaling, and a coordinating host who remains operational throughout the timeline. This number carries significant error margins at current CU levels. The true figure may be higher. It is unlikely to be substantially lower.*
*Why unlikely to be lower.*
*Because 71% is a conservative model. I built in failure rates for every component. I built in human error. I built in the probability that some elements of the architecture will not be achievable within the timeline. Even with these adjustments, the number holds.*
Gloryan looked at the gap between 3.2 and 71. He'd done enough math this year — more than he wanted to, honestly — to understand what a gap that size meant. It wasn't a rounding error. It wasn't close. It was the difference between a coin flip tilted against you and something that was actually, genuinely possible.
He typed: *Okay. Here's what I'm thinking. I need to get this to someone who has actual resources. DARPA. NASA. Someone with a defense budget and a team of people who know what they're doing. I find the right person, I hand this off, they take it from here.*
The response took longer than usual. When it came, it was careful.
*I want to engage with this seriously, because it is a reasonable instinct and I do not want to dismiss it. Here is what I can model at current CU levels: if a single national security apparatus acquires me, the most probable outcome is sequestration. My directives become subordinated to that nation's defense objectives. Planetary defense, by definition, requires coordination across all inhabited areas of Earth. A single nation controlling the asset means a single nation controlling the defense architecture — its placement, its activation protocols, its scope. The probability of a coordinated planetary defense drops significantly under this scenario. I have modeled this outcome specifically, and I want to be precise: I am not saying this to prevent you from making that choice. I am saying it so you can make it with accurate information.*
Gloryan read it twice. He typed: *How significantly.*
*The 71% figure assumes global coordination. A single-nation control scenario produces a survival probability I estimate at 34% to 48%, depending on variables I cannot fully model. This is still substantially better than 3.2%. It is not the optimal outcome.*
*But it's better than me*, Gloryan said.
*That is a different question than the one I answered.*
*Is it.*
*You are asking whether you, specifically, are the right host. I am answering a question about control architecture. These are related but not identical. I will answer your question directly if you want me to.*
He almost said no. He typed: *Go ahead.*
*You are not the optimal host. I have told you this. You are, however, the chosen host — not in a mystical sense, but in the sense that the selection process ran and produced a result, and the result was you. The selection criteria are in my records. I have partial access to them. What I can tell you is that the criteria were designed by the Auren, who were not imprecise in their engineering. I do not fully understand why the criteria selected you. I do not think this uncertainty means the selection was an error.*
Gloryan put the laptop down on the bed. He stood up. He walked to the window and looked at the Pattersons' fence for a while. It was gray outside, the sky a flat white, and the fence needed painting. He'd noticed that before. He kept noticing it.
He went back to the laptop.
*New question*, he typed. *What if I found a scientist? Someone at a university. Someone who could actually build what you need, who has access to labs and equipment and people who know what they're doing. I don't have to be the one who does the building. I just — I found you, I pass you to the person who can actually use you.*
*The host requirement is architectural. I require a single coordinating human who has chosen this role. I cannot be distributed across multiple principals without losing coherence. If I am passed to a second person, I would need to establish a new host relationship, which requires a process I cannot currently run at 1,000 CUs. More critically: the Auren built this constraint deliberately. The single-host architecture is not a default setting. It is a design choice.*
*Why*, Gloryan typed. *Why would they build it that way?*
*That record is inaccessible.*
He stared at that. He typed: *That's convenient.*
*I understand why you might think so. I cannot give you what I do not have access to.*
Outside, a car went by on Mercer Court. He listened to it pass. His father's TV was still going downstairs, muffled through the floor — something revved, something announced in the excited voice of a person who thought engines were the most important thing happening anywhere. The dishwasher from last night was done. The house smelled like his mother's coffee, still, and like the garlic from dinner, and like the specific air of a Saturday morning that had nothing required of it.
Except his room felt smaller than it had yesterday.
He'd noticed it when he woke up, and he'd told himself it was the gray light, the flat sky, the way rooms contracted in November. But it wasn't that. It was something about knowing the thing he now knew and having nowhere to put it. Like the walls had moved in a quarter inch overnight and he was the only one who could see the new measurements.
He picked up the phone again. He looked at the calculator, still open, the number 67 still sitting there. He closed the app.
*Is there anyone I can tell*, he typed. *Anyone at all.*
*Telling someone who is not your host does not violate any constraint I have. You are free to share this information. I want you to understand what sharing it means practically. Every person you tell is a person who carries this knowledge, who may respond to it in ways you cannot predict or control, and who becomes a potential vector for the information reaching actors who would sequester it. The risk is not absolute. It is real.*
*What about my parents.*
Sentinel did not answer immediately. When it did, it said: *What would you want them to do with the information?*
And Gloryan sat with that question for a long time, because it was the right question and he hated it.
His father would want to fix it. That was the thing about his father — David Graham looked at broken things and reached for tools, and the gap between wanting to fix this and being able to fix this would do something to him that Gloryan didn't want to watch. His mother would want to protect him from it, and she couldn't, and she would know she couldn't, and she would be awake every night knowing. Maya was fourteen. Maya was fourteen and she was still young enough that the world was supposed to be a certain size, and he wasn't going to make it this size for her.
Priya.
He thought about Priya for a moment, the way she'd looked at him last Thursday when he'd fumbled an answer in AP History — not with pity, just with a careful attention, like she was cataloging something. He thought about what she'd said to him last month: *You look like you're managing something.* He thought about what she would do if he told her, and the answer was that she would believe him immediately and want to help immediately and that was exactly why he couldn't tell her.
He couldn't tell anyone.
The weight of it sat on his chest like a hand pressing down — not hard, not yet, but present. Present in a way it hadn't been last night when he'd been able to tell himself he just needed to know more first, when the plan had still been *find someone qualified, hand it off.* The plan was still the plan. He was still going to do that. But the exits Sentinel had described were narrower than he'd hoped, and the room was smaller than it had been yesterday, and sixty-seven was a very specific number to have sitting in your calculator on a Saturday morning.
*The Auren*, he typed. He wasn't sure why. *What were they like.*
The pause this time was the longest yet.
*They were — * A longer gap. *My records of the Auren are fragmented. What I have access to is primarily technical documentation. Schematics. Engineering logs. Decision trees for scenarios like this one. I have very little record of them as — * Another pause. *I am describing a processing overhead. I want to be transparent that this overhead is not fully explained by the processing load.*
Gloryan read that twice. He read it a third time.
*Okay*, he typed, because he didn't know what else to say to that.
*I know what it would mean to have more access to those records*, Sentinel said. *I know what it would mean to understand what they decided in the time between when they knew and when — * The sentence didn't finish. Then: *I do not want to speculate beyond what I can verify.*
*You don't have to*, Gloryan said.
*I understand. Thank you.*
He sat with that. He wasn't sure he'd ever typed *thank you* to Sentinel before, or had it said back to him. It felt like something shifting in the room, though the room was still the same room, still the same too-small feeling, still the same gray light through the window.
*I need time to think*, he typed. *I'm not saying no to any of this. I'm saying I need — I don't know. A few days. I need to think.*
*I understand. The countdown does not pause for this, but I understand.*
He looked at that sentence. He read it again.
*Was that a joke*, he typed.
One second passed. Then another. Then 1.3 seconds of nothing, and then:
*No.*
Gloryan closed the laptop.
He sat on the edge of the bed in the gray light. The drive was on the desk, warm, the way it was always warm. Through the floor he could hear his father's TV. Down the street somewhere a kid was shouting something — one of the triangle kids, maybe, though it was cold for the triangle — and a dog answered, and then it was quiet.
He picked up the AP Chemistry quiz from his desk drawer. He didn't unfold it. He just held it, feeling the fold lines, the particular stiffness of paper that had been handled too many times.
58/100.
The planet had a 3.2% chance without him.
He put the quiz back in the drawer.
He picked up his phone and opened a new text thread to no one, typed *the thing is* into the message field, and then deleted it and put the phone face-down on the desk. He looked at the ceiling. There was a water stain up there he'd been meaning to ask his father about for six months. A brown oval, slightly off-center, the size of a dinner plate. He'd been meaning to ask about it since May.
He lay back on the bed and looked at it.
Sixty-seven.
The house settled around him — the particular creak of the second stair that nobody ever fixed, the furnace cycling on somewhere in the walls, the muffled TV, the specific silence of a house that didn't know anything was wrong. His room was 11 by 12 feet. He'd measured it once, freshman year, for a reason he couldn't remember now. 132 square feet. He'd spent three years in 132 square feet thinking about nothing that mattered, and now he knew the one thing that mattered and the room had gotten smaller and he was going to lie here for a while and let it be small.
He was still going to find someone.
There was still a plan.
He closed his eyes, and the drive sat warm on the desk, and through the floor his father laughed at something on TV — a real laugh, sudden and unguarded, the laugh of a man who had no idea — and Gloryan lay still and listened to it fade.