Carver Lyle threw up on day one.
Not from exertion. From the frequency. Pell's synchronization protocol required the Thread Sight to operate at forty percent above its normal range, and pushing biological neural architecture past its trained ceiling produced side effects that were familiar to Voss from his own early experiments with deep-channel work. Nausea. Vertigo. A pressure behind the eyes that felt like the beginning of a migraine but was actually the visual cortex trying to process information at a bandwidth it had not been designed for.
Lyle, to her credit, wiped her mouth, drank water, and went back to the exercise.
They trained in a shielded room at the Corps facility. Voss had cleared the space of all electronic equipment — the Thread Sight at elevated frequencies picked up electromagnetic noise as static, and the interference made it impossible to hold the target. The room was concrete, bare, and cold. Four chairs arranged in a circle. A single monitoring station where Ryn sat with biometric feeds from all four participants, watching for the physiological markers that indicated the frequency push was exceeding safe parameters.
The breathing exercise was the foundation. Pell had described it as a "breath ladder" — a sequence of inhale-hold-exhale ratios that progressively slowed the respiratory cycle and, through a mechanism that Mira's team was still working to explain, correlated with upward shifts in Thread Sight operating frequency. The correlation was empirical, not theoretical. Pell had found it by experiment. Voss had confirmed it on day one: the breathing pattern worked. He could feel his own Thread Sight frequency rise as his respiratory rate dropped, the channel between his neural architecture and the Loom's substrate opening wider with each rung of the ladder.
The problem was holding it. Reaching the target frequency took minutes. Maintaining it took effort that was closer to physical endurance than mental concentration. The neural architecture strained at the elevated frequency the way muscle strained under sustained load. The Carvers' bodies wanted to return to baseline. Every breath that deviated from the ladder pattern dropped the frequency back toward normal operating range.
Lyle, who had the strongest natural resonance of the three, achieved a stable hold at the target frequency on day two. She held it for forty-three seconds before her biometrics showed cardiac elevation and Ryn called time. Lyle's assessment afterward was characteristically blunt: "It's like holding your arm straight out. You can do it. Then you can't."
Marsh got there on day three. His path was different from Lyle's — where Lyle's frequency climbed smoothly, Marsh's jumped in steps, each step requiring a new plateau of stabilization before the next push. He held the target for twenty-eight seconds. His nose bled on the descent, a thin line of red from the left nostril that Ryn blotted without comment.
Torren could not reach it.
He tried. Voss could read his thread-architecture during the attempts — the neural patterns stretching toward the target, getting within five percent, then snapping back like a rubber band. His natural resonance ceiling was lower than Mira's projections had estimated. The frequency gap was not large, but it was consistent. By the end of day three, Torren's face carried the particular blankness of a professional who was watching himself fail at something his colleagues could do.
Voss pulled him aside after the third day's session. They stood in the corridor outside the shielded room, Torren's field jacket dark with sweat at the collar.
"The frequency ceiling isn't effort-dependent," Voss said. "It's architectural. Your neural resonance has a limit that training won't move."
Torren's jaw worked. "I know."
"The weave protocol has a minimum of four participants. If you can't reach the target, I need to bring in Holst or Kira from the reserve list."
"I know that too." Torren looked at the floor. Then up. His eyes were steady despite the rest. "Give me one more day. Mira said five percent gap. I've been closing it. Let me try."
Voss gave him the day.
---
The recovery facility was in the eastern district, a converted residential building with reinforced walls and a security perimeter that the Corps maintained with two-person teams on eight-hour rotations. The security was not for containment — Rehav was not a prisoner. It was for his protection. The public knew a Pillar had been compromised by a demon seed. Not everyone was inclined toward sympathy.
Rehav was in the garden when Voss arrived. Not tending it — sitting on a bench near the wall, a book open on his lap, his prosthetic left hand resting on the page he had been reading before his attention wandered. He wore civilian clothes. No uniform. The military had not formally discharged him, but the absence of the uniform said everything about the distance between who he had been and who he was now.
He was thinner. The broad-shouldered frame that had filled command centers and training grounds had narrowed, the muscle mass declining under the combined effects of months of sedentary recovery and the metabolic drain of the dying seed. His silver hair had gone fully white. The prosthetic hand still looked perfectly real, but the real hand — the right one — had a tremor that was visible from three meters away.
Voss sat beside him on the bench. Rehav closed the book.
"Director Dren." The old warmth was there. Faint, like a signal coming through damaged equipment, but present. "I wondered when you'd come."
"I have questions about the documents in your vault."
"The Carver pages." Rehav nodded. He was not surprised. "Dex came to see me about them yesterday. He asked where I got them. He was polite about it, which I appreciated. Not everyone has been."
"Where did you get them?"
"Pillar Okara. My predecessor. She held the Earth seat before me and retired twelve years ago. Died three years after that — natural causes, not the seed. She was clean." He paused. His right hand tremored against the bench. He looked at it, acknowledged the tremor, and returned his attention to Voss. "She gave them to me the day I was confirmed as Pillar. Part of the handoff. Along with the codes, the access authorities, the classified operational files. The pages were in a separate packet, sealed. Her instructions were specific: keep them secure, do not open the seal, do not catalog them in any official system. If a Carver asks for them by name, provide them."
"If a Carver asks by name."
"Those were her words. She said the pages had been entrusted to the Earth Pillar's line by a Weaver liaison thirty years before her tenure. The Weaver's instructions were the same — secure storage, no official record, release only to a Carver who specifically requests them."
The Weavers had wanted the pages preserved. Not destroyed. Kept outside official archives where they could not be found by casual search, but available to anyone who knew to ask for them. A backup. A seed planted in case the technique was needed again.
"Did you open the seal?" Voss asked.
"No. Not through any particular discipline. I had other things on my mind." The old voice cracked through — the dry, self-aware humor of a man who had once remembered every soldier's name. "Seven years of something in my head telling me which orders to give and which to delay. Reading Carver documents was not high on my priority list."
"Did the seed know about the pages?"
Rehav went still. The tremor stopped. When a man with a neurological condition stopped tremoring, it meant something was overriding the involuntary signal.
"I don't know," he said. The words came slowly. "I don't know what the seed knew. That's the thing nobody understands who hasn't had one. It wasn't a voice in my head saying do this, don't do that. It was my own thoughts. My own priorities. My own judgment. But subtly wrong. Shifted by degrees I couldn't detect until afterward." He looked at his hands — the prosthetic that worked perfectly, the real one that shook. "Maybe the seed knew about the pages and decided they weren't a threat. Maybe it didn't know because I didn't know their contents. Maybe it steered me away from opening them without me noticing the steering. I have no way to tell."
"How are you doing?" Voss asked. The clinical question could have been cold. He did not ask it coldly.
Rehav was quiet for a long time.
"Some days I can't tell which memories are mine," he said. His voice was level. He was not asking for sympathy. He was providing a medical report to a colleague who would use the information accurately. "The seed was in my brainstem for seven years. It integrated with my neural architecture the way any parasitic thread integrates — by mimicking the host's patterns. My memories from those seven years are all suspect. Not false, necessarily. But I can't verify which ones were formed by my genuine cognition and which were formed by the seed's influence disguised as my cognition."
He looked at the garden. The plants were healthy. Someone on the facility staff tended them well.
"I'm rebuilding. The doctors say the seed is ninety percent degraded. The remaining ten percent is losing coherence daily. Within a month, it should be fully inert. But the rooms it occupied in my mind — the neural pathways it lived in — those have been rearranged. Some of them might rearrange back. Some won't." He picked up his book. Set it down again. "I was a good general. I think I was a good general. I have memories of decisions I'm proud of and decisions I'm ashamed of, and I do not know with certainty which category to place any of them in."
Voss sat with this. There was nothing to say that would not be inadequate. Rehav was not asking for reassurance. He was describing a condition that had no treatment plan, only time and the gradual return of a self that might or might not match the one that was lost.
"The pages you kept," Voss said. "They describe a technique that could help with the Gradient threat. You preserved them without knowing why. That matters."
Rehav's mouth moved. The old smile, or its echo. "I kept a lot of things. Not all of them will turn out to be useful. But I'll take the one that did."
Voss stood. Offered his hand — the left one. Rehav took it. The grip was weaker than it had been. The man behind it was not.
---
Torren hit the target frequency at 1142 on day four.
It was not graceful. His approach was brute persistence — the same five-percent gap attempted over and over, each attempt microscopically closer, the neural architecture learning through repetition what it could not achieve through raw capacity. On the seventeenth attempt of the morning session, his Thread Sight frequency crossed the threshold and held.
He held it for twelve seconds. Then nineteen. Then, on the third successful attempt, thirty-one seconds — long enough for the biometric monitors to confirm stable harmonic alignment.
Ryn called it. "Stable hold confirmed. Thirty-one seconds. Clean descent."
Torren sat in his chair with his eyes closed. The sweat was back at his collar. His hands were flat on his knees, fingers spread.
Lyle, across the circle, nodded once. Marsh gave a thumbs-up.
"Four," Voss said. "We have a weave."
He left the shielded room and walked to the intelligence center to schedule the proof-of-concept test. Two cold fingers. Four Carvers. Pell's protocol, six hundred years old, about to be used for the first time since its author died.
Mira was at her station. She was not running the weave test calculations he had asked her to prepare. She was running something else — the network monitoring dashboard, full-screen, all 412 nodes displayed. Her hands were not on the keyboard. They were flat on the desk, pressed down, the way she pressed them when the data was bad.
"Voss."
He stopped in the doorway.
"What is it?"
She turned the main screen toward him. The geographic overlay of the doorway network. The metropolitan region in the center, the surrounding areas extending outward in concentric rings. To the north, the bait operation's amber markers — the Gradient closing on the overcharged node, twenty hours from contact, the isolation perimeter standing by.
That was expected. That was managed.
On the far eastern edge of the display, three thousand kilometers from the metropolitan area, in a section of the network that served the coastal cities of the continent's opposite shore, a new set of amber markers had appeared. Three nodes. A clean decay curve on each. A trajectory line that pointed southeast, toward the coastal population centers.
"Second Gradient," Mira said. "Detected forty minutes ago. Eastern continental network. Three nodes already drained. Trajectory points toward the Port Maren cluster — six hundred thousand people."
He stared at the screen. Two Gradients. Two separate incursions. Two sections of the network under attack simultaneously.
The first one had been containable. One Gradient. One bait operation. One isolation zone. Thirty-two nodes sacrificed. Eight percent of the local network.
Two Gradients meant two bait operations. Two isolation zones. Two sets of sacrificed nodes. The math did not double. It compounded — the second isolation zone would remove nodes that the first zone was depending on for network continuity. The total loss would be closer to twenty percent than sixteen.
And if there was a third?
"When did it enter the network?" he asked.
"I don't know." Mira's voice was flat. Controlled. The Dren quiet running underneath the professional surface. "The eastern monitoring stations are on a twelve-hour ping cycle for remote nodes. The decay curves suggest the first node went dark three to four days ago. We missed it the same way we missed the first four nodes here. The monitoring wasn't designed for this."
Three to four days. The second Gradient had been feeding for days before anyone noticed.
He looked at the amber markers on the screen. Two sets. Three thousand kilometers apart. Connected by the same network that was supposed to protect everything.
"Get me Yara," he said.
