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It happened at the worst possible moment.
They were crossing the northern watershed — a wide flat section where two river systems merged before flowing east. The ground was firm. The passage was fast. Six people moving in single file through waist-high northern grass.
The Tiger had gone ahead to the far tree line. Scouting.
Cai Rong was second in line when he stumbled.
Not a root. Not a stone. He stopped moving and put both hands on his knees and made a sound that was between surprise and pain.
Wen Dao turned.
The Pale Flame sense hit him immediately — Cai Rong's qi signature was destabilizing. Not injury. Breakthrough pressure. The Level Three foundation had been building for weeks under hard cultivation and the waypoint's density push and now it had reached critical mass at the worst possible moment.
"Cai Rong," he said.
"Working on it," Cai Rong said, through his teeth.
Zhou Jin was already beside him. "He needs to sit."
"We cannot sit in the open," Li Qing said. She was scanning the treeline.
"He cannot suppress a breakthrough," Wen Dao said. "If he tries, it rebounds. Worse than being in the open."
The problem: a breakthrough in open terrain produced a qi pulse. A large one. Qi Condensation threshold cross was detectable for miles. Wei Dao was four hours south. If he was reading signatures at range and felt a major qi pulse—
Three hours' advantage gone.
He made the calculation in two seconds.
"Do it," he said to Cai Rong. "Don't suppress."
Cai Rong sat down hard in the grass and let it happen.
The breakthrough was real and substantial — Wen Dao could feel its pulse through the Pale Flame sense, a surge of concentrated qi that reorganized itself into a new density structure. The signature bloomed outward for a full thirty seconds before it settled and compressed.
Qi Condensation Level Four. Cai Rong.
He sat in the grass for a moment and breathed.
"Good?" Wen Dao said.
"Better than good," Cai Rong said. He sounded different. Steadier. "Though the timing could use work."
"The timing was the cultivation's choice, not yours."
"Tell that to my knees." He got up. He looked at his hands. Something in his expression was very quiet and very real. "Level Four."
"Yes."
"I've been trying to reach Level Four since before Iron Mountain." He looked at Wen Dao. "Three months ago I was at Level Two eating caravan food in a forest."
"You've trained consistently."
"You've cultivated in environments that accelerated everything," Cai Rong said. "Without that — I don't know."
"The advancement is yours," Wen Dao said. "The environment was present for everyone. You were the one who didn't stop practicing."
Cai Rong looked at him for a moment.
"You could just accept the compliment," he said.
"I'm redistributing it accurately."
"Which is the same as not accepting it." Cai Rong shook his head. But he was smiling — a different smile from his usual performance version. Something under the surface showing.
From thirty feet ahead, the Tiger had come back from the tree line. It stood in the grass and looked at Cai Rong.
Its ears moved forward once. Then it turned back north.
"Did it just—" Cai Rong started.
"Yes," Li Qing said.
"Acknowledge me?"
"Approximately."
Cai Rong looked at the Tiger's back for a moment. Then he straightened fully, picked up his pack, and kept walking.
Ling Fan appeared beside Wen Dao. "The pulse will have been detectable," she said quietly.
"Four hours becomes three, maybe less," he said. "We need to gain distance."
He increased the pace.
Nobody complained.
At the end of the day they had covered twenty-three miles — their best single day. When they stopped, everyone ate quickly and slept immediately. No conversation.
In the morning, Wen Dao extended the Pale Flame sense south.
Wei Dao was three hours back.
Not two and a half. Three.
The increased pace had offset the breakthrough's signature pulse.
He exhaled once. Told no one. And led them north before full dawn.
In the pale pre-light, the northern hills showed their first peaks clearly. The ridge that marked the watershed boundary with the tower region.
One more day.
Maybe less.