The word hull survived the first deletion.
Onur found it in the attachment name, where the terminal had copied Samrawit’s local heading into the outgoing packet. He removed the attachment and left its empty position open.
Across the communications station, she caught her slate against its restraint.
“That held the comparison.”
“It held the shape of what we built.”
Article Four remained captured in Slip Two, its three damaged transitions untouched. The sacrificial joint had reproduced the damage. The missing records still kept the sound-looking barrel from moving.
Onur checked the packet again. An available channel was no longer an excuse for haste. Yesterday they had proved two signatures could protect a local link. Today the question had to leave the yard.
He secured his boots beneath the station and turned the outward-facing preview toward Samrawit.
“Give me the question without the reason.”
She brought forward the two complete certificate hashes. Onur compared them with the retained receiving links before admitting either to the payload. They identified records the source could recognize, not an address engineering needed to learn.
Five categories followed: forming method, principal working direction, stress-relief cycle, final heat treatment, revision chain.
The same five she had requested before dark state. Their brevity had not improved while everyone waited.
He removed the local category name from the cover. Internal Lot Seven meant nothing useful upstream and might mean too much if another message ever carried it.
Samrawit opened the thermal-history field.
“I need normalization state here. A completed cycle, an explicit absence, or unavailable. Not a blank they can call no.”
“Does that ask them to identify a furnace?”
“No. The condition and the governing revision.”
She placed approved joining treatment beneath it, retaining its relationship to the forming and thermal records rather than adding a diagnosis. Onur read the request aloud, slowly enough to catch what ordinary fluency concealed.
“Do the two certificates share forming method and principal direction? Normalization state, stress-relief cycle, final treatment and the joining treatments approved for each condition? Return the revision chain establishing which answers apply.”
“Values for each,” Samrawit said. “Not only same or different.”
He corrected it. A safe question that could return nothing useful would consume the same channel as a useful one.
The next local line named a weld position. He struck it. Proof load went with it, then the reference to Article Four. Site Anvil had never belonged in the payload, but he checked the hidden title and export fields anyway.
Samrawit kept her hands against the slate clip while he worked.
“You can tell them what the metal underwent,” she said. “You can’t tell them what happened here.”
“The first may let them guess the second.”
“Then don’t give them our guess.”
He closed the defect photographs. No crack pattern. No module geometry. No test sequence, schedule, destination or claim that one population had caused anything.
The source would know someone needed a distinction its certificates could answer. Onur could not erase that fact without erasing the request.
In the compartmentation booth, he opened the exact export apart from its local review record. The booth’s side panels screened the display from the corridor. His tether shortened as he fitted himself into the restraint.
The local record retained the removed material, reasons and engineering need. None of those attachments appeared in the outward packet.
He compared the file list with the preview, then opened the payload itself. A convincing preview had never been the boundary.
The compact request occupied the screen:
Certificate references: two complete retained hashes attached.
Required for each: forming method; principal working direction; stress-relief cycle; final heat treatment, including normalization state and approved joining treatment; governing revision chain.
Distinguish documented absence from unavailable information. Return applicable process values and signed revisions. Exclude source identity, facility, route, contract and destination.
Below it, the wrapper held a one-time response token and a fixed expiry. A valid signed answer would consume the token first; the deadline would close it if no such answer came. An invalid packet could not settle the question merely by reaching the return path.
Onur checked the retained mapping. The source could return a response through the token without receiving the yard’s address. Relay custody remained separate from the technical payload.
The broker would mix the request with unrelated traffic, hold it for a batch and delay its upstream delivery. The return would pass through the broker too. No direct connection would open while the source considered the question. Site transmission time would not become the time stamped on a question delivered upstream.
He checked the polling pane and closed the direct-refresh option. There would be no stream of impatient requests carrying the rhythm of their waiting.
Wanjiku joined them at the blind-routing terminal. She secured her slate beside the review copy and checked both certificate links against Samrawit’s signed need.
“No structural release in this authorization,” she said.
“Only the query.”
She opened the five categories, including the qualification detail Samrawit had nested beneath thermal history. Her approval belonged to those bytes and that purpose, not any later version they might wish they had sent.
Onur checked the two authorization fields. Current engineering release. Current compartmentation release. Both bound to the same packet and response wrapper.
Wanjiku applied her signature.
The transmit control remained unavailable.
Yesterday’s demonstration had used invented records. These were the surviving links to real plate. If the boundary failed now, there would be no harmless test address behind it.
He compared the approved digest with the outward payload once more. No attachment had returned. No local name had followed a helpful export setting into a hidden field.
Samrawit held the final question open.
“Enough?” he asked.
“Enough to ask. The answer may still be incomplete.”
He signed the compartmentation release.
The control became available. Onur dispatched the packet once and kept the acknowledgment pane open until the broker accepted custody.
Accepted into queue.
Not delivered upstream. Not answered.
The terminal offered him the local receipt. He saved it beside both signatures before leaving the station.
Cho waited at the corridor rail with the recovery allocation on his slate. Onur caught the adjoining handhold rather than letting his tether draw him past.
“How long?” Cho asked.
“The token has a deadline. That isn’t a promise of an answer before it.”
“Can we ask whether they received it?”
“The broker has it. Upstream delivery waits on its batch.”
Cho studied the receipt, then the allocation. The reopened radiators still had the dark-state debt to clear. Slip Two remained occupied. Their question had left the yard without releasing anything inside it.
“I need to decide the next work block.”
Onur could give him the queue state and the expiry. Nothing on the screen could turn either into a return time.
“Keep the response check inside the ordinary broker windows,” he said. “No separate traffic for our impatience.”
Cho retained the delay against Article Four instead of moving it into an assumed answer. Samrawit took her slate back toward the lab. She had work that could preserve evidence, not manufacture the missing history.
Onur returned to the terminal at the next permitted check. The response token remained live. No signed answer had arrived.
In the broker view, their acceptance receipt sat beside entries for unrelated traffic. Nothing showed the upstream address. Nothing distinguished their question by the shape of the thing waiting for it.
He closed the local detail. Beyond the corridor, Article Four hung under the lamps in Slip Two, blank and held, unable to tell which message in the queue was its own.
Author’s note: This story continues the Site Anvil arc in late Year 3, after the bounded dark-state window. Onur Tekin must send a useful question without sending the circumstances that made it necessary.
New to The Vethrak Requiem? Start with The Exodus Rush, Book 1, where humanity fights for survival after an alien invasion using technology it barely understands. These short stories explore the wider universe; the novel begins the main story.