IESA's response arrived eleven hours later than their own historical average, which Vance took as evidence that somewhere on Earth, a room full of people considerably more senior than anyone aboard Calloway had spent the better part of a day arguing about how frightened to sound in an official communication.
The answer, when it came, sounded exactly as frightened as Mara had expected and exactly as bureaucratic as Vance had warned her it would be. Full data lockdown, effective immediately — nothing further transmitted to any party outside the IESA chain of command, including the PRC Deep Space Division, with whom Calloway had maintained eleven years of informal, occasionally rule-bending cooperation that this order effectively criminalized overnight. A specialist team was already being assembled and would launch within forty-eight hours; transit time to Calloway's position, even on the fastest available IESA vessel, put their arrival fourteen days out. Until then, Commander Vance was designated sole authorizing officer for any further action regarding what the memo called, with the particular flatness of a phrase workshopped by committee, "the anomalous transmission event."
"Fourteen days. They're sending us the most important discovery in the history of the species and telling us to just sit on it for two weeks."
"They're sending us the most important discovery in the history of the species, and they don't yet know if it's a discovery or a trap, and neither do we, which is the entire reason the order makes sense even though I don't like it."
He read the memo a second time anyway, the way he'd read the contingency binder twice the first night, as if repetition might reveal a sentence that had been hiding between the others. There was a paragraph, three-quarters of the way down, that troubled him more than the lockdown itself: a notification that IESA had, "in the interest of coordinated response," briefed a closed session of its Executive Council, membership unspecified, timing unspecified, contents unspecified. Vance had spent eighteen years learning to read the shape of an institution through the holes in what it told him, and the shape this hole made was the shape of a room he wasn't in, where decisions that would eventually arrive at Calloway as orders were already being formed by people who had never listened to a single second of the actual signal.
"They've already started making this about something other than the discovery. Fourteen days from now, whoever gets off that specialist ship isn't going to be thinking about grammar. They're going to be thinking about jurisdiction."
"Then we have fourteen days to make sure the discovery is still what shows up on their desk, and not just the argument about who owns it."
It was Yemi who noticed the second problem, four hours later, cross-referencing the drone traffic logs the way Vance had asked her to as part of her general watch-brief, and who brought it to him with the particular quiet urgency of someone who has found something and is still hoping to be wrong about it.
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"There's a freighter. Helix Dynamics registry, hauling manifest listed as ice-mining survey equipment, currently six days out from a scheduled resupply run to their Kuiper claim at 2003 UB313. Except."
She turned her slate around so he could see the trajectory plot.
"It changed course nine hours ago. New heading brings it within docking range of Calloway in three days."
"Nine hours ago. That's inside the window since we sent the courier drone."
"It's inside the window since we told IESA. Which means either Helix has assets watching IESA's own relay traffic closely enough to catch a first-contact flag within hours of it being filed — which would be its own kind of alarming — or someone here, or somewhere along the relay chain, told them directly."
Vance's jaw did the thing it did when he was suppressing an emotion he considered unprofessional to display in front of his crew.
"Get me everyone's outbound comm logs for the last eleven hours. Everyone's, including mine."
"Including yours,"
Yemi repeated, not quite a question.
"Especially mine. If I find something I don't like in someone else's logs and I haven't checked my own first, the first thing that happens is everyone stops trusting the audit, and the second thing that happens is they're right not to."
He said it without heat, the flat procedural logic of a man who had run exactly this kind of internal review twice before in his career and had learned the hard way that fairness was not a virtue so much as a structural requirement, the load-bearing wall of any investigation small enough that everyone involved would still have to eat breakfast together afterward.
"You've done this before."
"Titan Base,"
he said, and didn't elaborate, and she didn't ask, because everyone aboard Calloway had eventually learned the outline of that story secondhand and understood it was not a door Vance opened voluntarily.
She pulled the logs anyway, methodically, cross-referencing timestamps against the freighter's own public transponder broadcasts, looking for the kind of coincidence that wasn't one — and found, four hours before the freighter's course change, an unremarkable, fully authorized science-data packet routed through the shared PRC-IESA relay node that both agencies used, by treaty, for weather and radiation monitoring in the outer system. The packet itself was routine. Its metadata header, though, had been stamped by an automated triage system that flagged anything containing certain keyword clusters for secondary review by a contractor pool — a pool that, Yemi discovered after twenty more minutes of digging through public procurement records nobody at Calloway had ever had reason to read, currently held an active subcontract with Helix Dynamics for satellite-relay maintenance.
"It's not a leak. Not the kind you're imagining, anyway. Nobody betrayed anybody. It's worse than that, in a way — it's just architecture. We built a system that lets the same private contractors service both the science relay and half the corporate shipping lanes out here, and nobody ever asked what happens when both jobs need the same word to trigger."
The audit took the rest of the day and produced nothing conclusive about deliberate wrongdoing — no unauthorized transmission anywhere in Calloway's own outbound traffic, no smoking gun, nothing Vance could put a name to and discipline — which left him with the considerably less satisfying task of accepting that the leak had happened somewhere in the ordinary, boring plumbing of interplanetary commerce, a possibility that offended his sense of order more than sabotage would have, because sabotage at least implied someone had cared enough to try.
She had her own problem to chase, in any case, one that had been nagging at her since the confrontation with Vance the night before: Petra Sandvik's carefully neutral request, delivered that morning with the same even courtesy Petra brought to everything, to be given supervised access to the raw signal data "for psychological baseline purposes — I can't properly monitor crew stress around something I haven't seen myself."
It was, on its face, a reasonable ask from the station's psychologist. It was also, Mara noted, the first time in eleven years that Petra Sandvik had asked to see raw mission data rather than simply asking people how they felt about it.
"I want to say yes. She's right that she needs some frame of reference to do her job. But something about the way she asked—"
"You think she's after something else."
"I think that I've spent three days learning to notice when something is showing me exactly enough to make me stop looking for what it isn't showing me. I don't know if that's paranoia or pattern-recognition. I'd like it to be paranoia."
Vance considered this with the patience of a man who had learned, over eighteen years, that a good commander's job was rarely to solve every problem his crew brought him and much more often to decide which ones were worth solving right now.
"Give her limited access. Summary layers, not the raw feed, not the header data. If she pushes for more than that, I want to know."
Mara didn't have to wait long. Petra pushed within the hour — politely, reasonably, framed entirely around crew welfare, asking specifically about the header block, the neural signature, the part of the discovery that Mara herself had not yet found the composure to discuss with anyone outside the three people who already knew.
"I understand it's sensitive. But if the signal has identified you specifically, Dr. Osei, then your psychological state isn't incidental to this mission. It may be central to it. I can't help you carry that if I don't understand its actual shape."
"I appreciate the concern. I'll loop you in as soon as command clears wider distribution. Right now that's not my call to make alone."
Something flickered across Petra's face — not anger, nothing so simple as offense, but a brief recalibration, the look of a person adjusting a plan rather than abandoning it.
"Of course. I only want what's best for this crew, Mara. I hope you know that."
"I do."
And meant it, and still left the office with the specific unease of a woman who had just told the truth to someone she was almost certain was not telling her the whole truth back.
She raised it with Dmitri afterward, over the last of the coffee neither of them should still be drinking at that hour, framing it as an idle observation rather than the suspicion it actually was, because some part of her still felt disloyal accusing a colleague of eleven years' good standing on the strength of a feeling.
"Petra's always been careful. That's just Petra. Careful people ask careful questions. Doesn't mean anything's underneath it."
"Maybe."
And did not believe herself even as she said it, and found, three days into the strangest event of her professional life, that she had already begun keeping a second, private accounting of everything aboard Calloway that did not quite add up — the leaked trajectory, the freighter's suspiciously precise timing, Petra's newly urgent interest in data she had shown no curiosity about in a decade — filed alongside the signal itself, another pattern with a shape she could sense but not yet name.
She lay awake afterward in her own narrow bunk, the mesh array's slow attitude corrections ticking faintly through the hull the way they always did, a sound she had stopped consciously hearing years ago and now, for reasons she couldn't articulate, found herself listening to again, as if the station's ordinary machinery had become suddenly, freshly strange simply by sharing a hull with something that had reached across six thousand light-years to find one specific mind. She thought about her sister, the way she always eventually did on nights she couldn't sleep, gone eight years now, an accident on a survey run not so different from the one Yemi had traced the freighter's cover manifest to — ice-mining equipment, routine transit, the kind of unremarkable trip that ended most days exactly as boring as it began, until the one day it didn't. She had built an entire career, she sometimes thought, out of that specific grief: a preference for the patient recovery of dead voices over the unpredictable company of living ones, decades spent coaxing meaning out of the last surviving fragments of languages precisely because a dead language could not disappoint you the way a person could, could not leave without warning, could only be found or not found, translated or not translated, and either outcome left you in exactly the kind of solitary, controlled sorrow she had spent her adult life quietly preferring to the alternative.
The signal, she thought, staring at the low curve of the cabin ceiling, was the first thing in a decade that had made her want to be found back.
Outside, unhurried, indifferent to freighters and protocols and the small human suspicions accumulating in Calloway's narrow corridors, the primer sat quiet in its archive, waiting — the way, Mara was beginning to suspect, it had always been content to wait, on a timescale that made three more days feel, to whatever had sent it, like no time at all.
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