Neve's hands were on his neck before he'd finished sitting down.
"Don't move." Her fingers pressed against the junction point β the spot where the trellis anchored to his spine, where nineteen point four percent of integration load concentrated every time the channels carried more than they should. "The stress fractures are worse than this morning. You've been clenching your left hand without noticing."
He hadn't noticed. He looked at his left hand. The fingers were curled into a loose fist, the channels in the palm conducting the protocol's residual data in a continuous low hum that he'd stopped registering hours ago. He unclenched. The fingers opened stiffly, like hinges that needed oil.
"How long for the redesign?" Ren asked. He was building the fire β small, shielded by a sandstone outcrop, the kind of fire that wouldn't be visible beyond thirty yards. Standard. Ren built fires the way he did everything: efficiently, with attention to tactical exposure.
"Two hours minimum." Neve didn't look up. Her attention was inside Valen's trellis, the Third Chapter's construction awareness reading his nervous system the way she read geology. "During the redesign, the trellis goes offline. Integration load has nowhere to go except the junction point."
"Meaning?"
"Meaning it's going to hurt and there's nothing anyone can do about it." She moved her fingers down his spine, reading. "Sera β I need you monitoring his energy output. If the load spikes beyond what the junction can handle, I need to know before the nerve damage starts, not after."
Sera was already positioning herself. The gate at maintenance level, the red veins in her forearms casting their own light in the deepening dusk. She put her hand on Valen's shoulder, and the Second Chapter's energy awareness interfaced with the trellis's output.
"I can feel the load distribution," she said. "It's uneven. The protocol data is heavier on the left side β the channels in his hand are carrying twice the signal density of the right."
"I know. That's what I'm redesigning." Neve sat cross-legged behind him. Fifteen years old and performing surgery on a nervous system that contained a dead god's communication protocol. "Valen. When I take the trellis offline, you'll feel the integration load shift. It'll move to the junction point and sit there. Don't try to redirect it. Don't clench. Don't move. Just breathe and let me work."
"Understood."
"And keep the Grimoire closed."
He looked down at the book. Warm at his hip. The pages still. "It's closed."
"Keep it that way. The last thing I need is the First Chapter trying to help." She said "help" with the particular tone of a builder who'd watched helpful people knock over scaffolding.
---
Varren documented. She sat three feet away with the notebook on her knees and recorded the trellis redesign in the same precise shorthand she used for everything β vault data, travel routes, the political calculus of approaching factions. Her pen moved steadily. The professor's version of Ren's fire-building: do the thing you're good at while the world burns.
Aelith stood watch at the edge of camp. The tremor in her shoulders was visible in the failing light β a rhythmic shudder that she controlled by keeping her arms crossed, pressing the trembling against her body. The Fourth Chapter's pattern analysis was running continuously. She hadn't reported anything new since the morning's assessment of Mordren's tracking network, but her head turned at intervals, tracking something only she could see.
Ryn sat near the fire. The Fifth Chapter open in her lap, the black pages facing the flames. Her eyes went unfocused every two minutes. Came back. Went again. The person behind the chapter, flickering.
Drace and Tomik at the perimeter. Silent, solid. The consistency of professionals who didn't need to understand the situation to do their jobs.
"Ready?" Neve said.
"Do it."
She took the trellis offline.
The pain was immediate. Not sharp β structural. The integration load that the trellis had been distributing across his entire channel network concentrated at the base of his neck in a single point of pressure that felt like someone had placed a heated coin against his spine. The coin grew hotter. The load increased as the trellis's management architecture shut down piece by piece, each deactivated section sending its share of the burden to the junction point.
His left hand seized again. The fingers clenching despite Neve's instruction not to clench, the channels in the palm reacting to the unmanaged load by contracting, the protocol data compressing in pathways too narrow for the signal density.
"Don'tβ"
"I'm trying."
"Try harder. The hand isn't important right now. The junction is. Focus on the junction."
He focused. The heated coin at the base of his neck, growing. The integration at nineteen point four percent, which didn't sound like much until you felt it concentrated in a space the size of a thumbnail.
Time went strange. The pain made it stretch. Five minutes felt like twenty. Neve's hands moved on his spine, the Third Chapter's construction awareness dismantling the old trellis architecture and beginning to build something new β he could feel it, faintly, through the pain. The sensation of structures being removed and replaced, like walls torn down and rebuilt while you sat inside the building.
"The communication pulse is interfacing with the protocol," Neve said. She wasn't talking to him. Talking to Varren. To the notebook. "The synergy I described this morning β pulse amplifies protocol, protocol amplifies pulse β it's using the same resonance architecture as the vault. The trellis needs to account for the resonance harmonics, not just the signal load."
"Meaning what in practice?" Varren asked.
"Meaning the new trellis needs a harmonic buffer. A layer between the channels and the junction that absorbs the resonance peaks. Without it, every time the pulse and protocol sync up, the junction takes the full combined load."
Pen scratching paper. "Can you build one?"
"I'm building one. But the architecture has two configurations." She paused. Her hands still on his spine, but the work had stopped. "The harmonic buffer can face inward or outward. If it faces inward β toward the junction β it protects Valen's nervous system from resonance damage. The protocol functions normally but at reduced efficiency. The root note would take longer to broadcast when activated. Hours instead of minutes."
"And if it faces outward?"
"Outward β toward the channels β it amplifies the protocol's signal. The root note broadcasts at full strength, full speed. But the resonance peaks hit the junction unfiltered."
"What happens to Valen if the peaks hit unfiltered?"
Neve was quiet for three seconds. The Third Chapter processing. "Accelerated integration. Each broadcast pushes the integration forward by a full percentage point instead of a fraction. At the current rate, that'sβ"
"Months off his life," Sera said. Her hand on his shoulder, the Second Chapter reading the numbers. "Each full broadcast costs months."
Valen's eyes were open. He was listening through the pain, the junction point burning, the conversation happening over his head. Literally over his head β Neve behind him, Varren beside him, Sera's hand on his shoulder.
"Which configuration?" Varren asked.
Neve didn't answer Varren. She moved her hands on his spine, the construction awareness reading something new. "The Grimoire is writing."
"I told it to stay closed."
"It is closed. It's writing inside itself. The margins β I can see them through the construction awareness. The channel network is conducting the text." She read in silence. Her hands tightened on his neck.
"What does it say?"
"It says the outward configuration was the design intent. The trellis was always meant to be a broadcast amplifier. The original architecture β the one you had before β was an incomplete version of the outward design. The system has been building toward the amplifier configuration since you bonded."
The Grimoire, designing his nervous system to serve the protocol. Since the beginning.
"Neve," Valen said. His voice strained through the pain. "Which are you building?"
She didn't answer for six seconds. Seven. Eight.
"Inward." Her hands resumed working. "The buffer faces inward. I'm building for your survival, not the protocol's efficiency."
"The Grimoireβ"
"The Grimoire isn't my patient. You are."
She said it with the authority of someone three times her age. Fifteen years old. Hands on his spine. Choosing his nervous system over a dead god's design, in the time it took to count to eight.
---
The trellis came back online at the ninety-minute mark. Thirty minutes ahead of Neve's estimate. She'd worked fast once the decision was made, the construction awareness operating with the focused precision of someone who'd chosen a blueprint and committed to it.
The pain didn't stop. It reduced. The heated coin cooled from burning to warm, the junction point accepting the new architecture's load distribution, the integration burden spreading back through the channel network as the redesigned trellis activated section by section.
His left hand unclenched. The fingers opened. The channels in his palm were conducting the protocol data in the same continuous hum as before, but the hum was different. Cleaner. More organized. The trellis wasn't just distributing the load anymore β it was sorting it. Protocol here. Communication pulse here. Integration load here. Three streams that had been tangled together now running in parallel channels with the harmonic buffer between them and the junction point.
He could feel the root note more clearly. Not louder β better defined. Like adjusting the focus on a lens. The tonic frequency in his channels, the dead god's song, waiting to be sung. He could feel its edges now. Its boundaries. Where the root note ended and his own nervous system began.
The distinction was smaller than he'd expected.
"Nineteen point six," Neve said. She was reading the integration. "Point two advancement during the redesign. The offline period allowed some residual loading."
"Same as this morning."
"The rate hasn't increased. The new architecture should hold the rate steady at the current level β point one to point two per day. Without the redesign, the combined amplification would have pushed it to point five or higher." She moved to face him. The Third Chapter's glow fading from her hands as she withdrew the construction awareness. "The trellis will hold. But Valen β the choice I made has a consequence you should know about."
"I heard the conversation."
"You heard part of it. Here's the rest. The inward configuration reduces the root note's broadcast efficiency. When you activate β if you activate β the broadcast will take hours, not minutes. During those hours, you'll be stationary. Vulnerable. Broadcasting a signal that every chapter-sensitive detection system on the continent will register."
"So activation becomes a siege, not a signal."
"Yes." She sat back. The fifteen-year-old who'd redesigned his nervous system looked tired for the first time since he'd known her. Not the physical tiredness of travel. The tiredness of responsibility. "I made the choice without asking you. I'd make the same choice again."
"I know."
"Are you angry?"
He thought about it. The root note in his channels, the clear edges of it, the distinction between the protocol and himself. The dead god's design intent, overridden by a fifteen-year-old's decision.
"No. I'mβ" He stopped. Flexed his left hand. The fingers worked smoothly. The channels humming, clean, sorted. "You chose me over the system. Nobody else has done that."
She looked at him. Then away. Then at the fire. "Don't make it weird."
---
Aelith came in from the perimeter.
She wasn't running. Her stride was controlled, the Fourth Chapter's pattern-analysis discipline keeping her body steady while whatever she'd detected reorganized her assessment of their situation. The tremor in her shoulders was worse β or she'd stopped suppressing it.
"Mordren's advance teams," she said. She addressed the group. Not just Valen. The whole camp. "They've changed course."
Ren was on his feet. "Direction?"
"They're not heading northwest toward the vault. They were β twelve hours ago, the trajectory was consistent with vault interception. But the pattern shifted three hours ago. Two teams." She held up trembling fingers. "Both redirected. Southeast."
"Southeast," Varren said. "That'sβ"
"Our route. They're not investigating the vault anymore. They're intercepting." Aelith looked at Valen. At the trellis redesign's aftermath, the channel hum, the junction point still warm at the base of his neck. "The detection arrays didn't just register the vault's resonance burst. They registered the direction of departure. They know we left the vault heading southeast. They've extrapolated our route."
"How far?" Ren asked.
"At their current pace, accounting for terrain and the number of horses I can detect through their supply chain patternsβ" She paused. The Fourth Chapter processing. The tremor running through her like current through a wire. "Thirty hours. Maybe less. They'll reach the valley junction south of here, where the hillcountry narrows to three viable routes. They'll hold the junction and wait."
Three routes. All leading south. All passing through a single chokepoint that Mordren's teams would reach before them.
Ren looked at the map that wasn't a map β the landscape he'd been reading since dawn. "We could go east. Around the junction."
"That adds four days. Through highland terrain with no water sources and full exposure to aerial detection."
"West?"
"West is the Compact's monitoring corridor. Aelith's former network. They'll detect three active chapters the moment we enter range."
Ren looked at Valen. The combat mage's assessment, direct as always. "Thirty hours. Two Inquisition advance teams between us and the lowlands. And your channels just went through a complete rebuild."
Valen stood. The trellis held. The junction warm. The root note clear in his channels, the dead god's song sitting behind his teeth, and thirty hours until the Inquisition placed themselves between him and everywhere he needed to go.
"Neve," he said. "How long until the trellis is stable enough for spell use?"
Neve's face went flat. "Define spell use."
"The kind Mordren's advance teams aren't going to enjoy."
She looked at him for a long time. The tiredness still there, but something else underneath it. The look of a builder watching someone plan demolition.
"Six hours," she said. "Don't make me regret the inward configuration."