## CHAPTER SIXTY SEVEN
### The Fourth Stage
It came without ceremony on the eighteenth day north of Dragon Sect territory.
He had felt it building for four days — the same pressure-behind-something quality as the third stage breakthrough, the same specific sense of a threshold approaching. He had told Lin Mei on the second day of feeling it. She had adjusted the repair session monitoring accordingly and said nothing beyond: watch the signs I told you about.
He had watched the signs.
On the eighteenth day the signs said: today.
He told Bing Xi and Lin Mei at the morning camp.
"Today," Lin Mei said. Not a question.
"Yes," he said.
"We stop here," she said. "Not because you need to be still. Because you should not be managing terrain navigation while a breakthrough builds."
They stopped.
The terrain was open — a high plateau in Ice Sect's outer territory with the northern peaks visible and the spring community's valley behind them somewhere and three more seeded sections ahead. The plateau had the specific quality of altitude exposure. Nothing blocking the sky in any direction.
He sat with the sword across his knees and waited.
Lin Mei monitored. Bing Xi maintained the Frostbite stabilizing frequency at low intensity. Not the session-level stabilization — the general background frequency that had become their standard travel configuration since the growing season work. A baseline presence that cost Bing Xi almost nothing and kept the repair work's progress from being disturbed by road demands.
The breakthrough arrived at the second hour.
Stage Four. Tempering.
The Qi volume increased again — larger than the Forging stage jump, the specific expansion of something that had been building at the Forging level and was now moving to the next channel. The crack handled it. The wrong-fast movement accelerated and then stabilized at the new volume the way a river stabilized after flood waters peaked — not the original state, a new state.
The domain expanded.
He had not fully understood what domain expansion meant until it happened.
The Lost Blade's awareness extended outward from him at the breakthrough's peak — not his awareness, the sword's, but it was through him so the distinction was imprecise. The vein network below the plateau was present in a way it had not been present before. Not just when he reached for it deliberately. Present. An ongoing awareness. Like developing a new sense.
The cost arrived at the third hour.
The nightmares.
He was sitting cross-legged in the plateau's open air in the third hour of daylight and the nightmares came anyway.
Not sleep. Waking nightmares. The specific vivid reliving that Lin Dao had documented — he had noted this in the journal and Jian Yu had read the note and understood it as description and found now that description was not sufficient preparation.
The courtyard.
Wei Han's face.
Master Feng on the stones.
He sat with it.
He did not try to stop it. He knew from the journal that stopping it was not possible and attempting to stop it wasted the energy he needed for the stabilization. He sat with the cost and let it be what it was and counted his breaths inside it.
One through nine.
The nightmare continued around the counting.
He held nine and kept breathing.
Lin Mei watched the indicators with the focused attention of someone who had been prepared for this specific event and was managing it the way she managed everything — without visible alarm, with the precise application of what the situation required.
Bing Xi's stabilizing frequency shifted. Not the background level. Something more active. She had felt the nightmare's quality through the Frostbite Edge's sensitivity — not its content, its intensity — and had responded by increasing the frequency to the level that held the stable sections against disruption.
He felt the stabilization hold.
He kept counting.
Two weeks. Lin Dao had documented it as two weeks.
He filed that and kept breathing.
---
On the evening of the first day Lin Mei came and sat beside him.
He was not meditating. He was sitting and waiting for the second hour when the waking nightmare cycle ran again and he had learned in the first day that the pattern was predictable — two hours on, one hour off, the cost cycling through the day at consistent intervals.
He was in an off hour.
"The domain expansion," she said.
"Yes," he said.
"What does it feel like," she said.
He thought about how to describe it accurately. "The vein network is present," he said. "Not just when I reach for it. Ongoing. Like — before the breakthrough I had to look at it to see it. Now it is in the peripheral vision. I am not looking at it but I know it is there."
"What is the network showing you," she said.
He considered. "The plateau. This section of the plateau is not seeded. The three sections ahead are visible at range — I can feel their frequency from here. The spring community is behind us. I can feel it generating." He paused. "I can feel the cascade data Li Shan is tracking from the vault. Not the data itself — the network conditions the data represents."
Lin Mei was quiet for a moment. "You can feel the full network."
"In this area," he said. "I don't know the range yet."
"The active absorption," she said. "At Forging stage it required deliberate reach. At Tempering stage with domain expansion—"
"It is wider," he said. "The range extends with the domain. Techniques used near me rather than directly against me — I can absorb from those too now." He paused. "I have not tested the outer range of the expansion yet."
"Two weeks before we test anything actively," she said.
"Yes," he said.
She looked at the plateau. At the peaks above.
"The waking nightmares," she said. "The pattern is consistent."
"Two hours on, one off," he said.
"That is useful," she said. "We plan around the off hours. Movement during off hours. Rest during on hours." She paused. "You should tell me the content."
He looked at her.
"Not because I need to know it," she said. "Because carrying it alone for two weeks makes it heavier than it is. Speaking it distributes the weight." She paused. "I know what the nightmares contain. I know what the courtyard looked like. I have heard you describe it before. Speaking it again is not the same as telling me something new."
He held this.
She was right. The journal had documented the cost but not the management strategy. Lin Dao had known the cost existed and had not written about how to carry it. Lin Mei had worked out the management strategy from first principles.
"Tonight," he said. "In the off hour after the second cycle."
"Yes," she said.
She went back to the camp setup.
He counted his breaths until the third cycle arrived.
---
He told her that night in the off hour.
Not dramatically. Plainly. What he saw in each nightmare, what changed between repetitions, what was the same.
She listened without comment until he finished.
Then she said: "The detail that changes between repetitions."
"Yes," he said.
"Which detail," she said.
"Master Feng's expression," he said. "In the first repetition he looks afraid. In the second he looks resolved. In the third he looks — " He paused. "Like he expected it. Like he was already at peace with it before it happened."
"Which is accurate," Lin Mei said.
"Yes," he said.
"The nightmare is showing you what was real," she said. "Not distorting it. Clarifying it. The first repetition is the shock response — fear. The second is the processing — resolution. The third is what was actually true — he had already decided. He was not afraid." She paused. "The nightmare is not punishing you. It is completing a picture you did not have the capacity to see clearly at the time."
He sat with that.
"The cost is not just a cost," he said slowly.
"The cost never is," she said. "For you. Each cost has done something in addition to taking something." She paused. "The silence — three days of not hearing — gave you the specific quality of listening in silence that you used in the recovery work to read what people were not saying." She paused. "The shaking hands gave you the specific awareness of what hands feel like when they cannot be controlled, which changed how you approach technique — you stopped supervising the crack and let it decide. Remember."
He looked at her.
"What the two weeks of nightmares complete," she said, "I don't know yet. But it will be something." She paused. "It always has been."
He counted his breaths.
One through nine.
"Two weeks," he said.
"Two weeks," she confirmed.
The plateau was cold and clear and the stars were the specific dense stars of altitude and the domain extended below him through the vein network of the plateau floor and he could feel the three sections ahead and the spring community behind and something larger and slower that might have been the full network's edge or might have been the limit of what the domain currently reached.
He held nine breaths.
Then he let the fourth cycle arrive.