Gao Jun had the boar's sensory fragment loaded into the overlay's spatial analysis within ten minutes.
The overlay wasn't designed for formation-frequency memory data. It was designed for probability models, threat assessment, conduit mapping. But Gao Jun had spent four years adapting the device to whatever the Barrens threw at him, and the spatial analysis module could process any data with a positional component. He fed it the fragment's visual and spatial information, cross-referenced against the division's survey maps, and let the comparison run.
"The terrain features in the fragment match a region approximately seventy kilometers northwest of our current position," he said. "Elevation profile, rock formation density, drainage patterns. The overlay's confidence is high on the general area, lower on the specific coordinates. The boar's spatial perception wasn't precise enough for exactitude."
"Seventy kilometers northwest." Lin Feng was on the diagnostic platform, processing buffer energy. The boar and cat consumptions had added significant volume to the buffer, and the integration cycle was working through the newly freed energy from the patterns he'd broken. Slow, steady recovery. "What does the division's survey data show for that region?"
"Nothing." Gao Jun pulled up the survey maps on the overlay. The division's three-year Barrens study was displayed as a colored overlay on the topographic base: surveyed terrain in blue, unsurveyed in gray. The area seventy kilometers northwest was gray. Deep gray. "The division's survey team operated in the near-Barrens, from the mortal realm boundary to approximately forty kilometers into the interior. Their maximum penetration was forty-three kilometers, during a single excursion in the second year. Beyond that distance, the environmental conditions were considered too hostile for extended field operations."
"Too hostile how?"
"Formation-frequency radiation from residual pre-Abandonment conduit infrastructure. The survey team's equipment degraded past forty kilometers. Their practitioners reported physiological effects: headaches, disorientation, difficulty concentrating. The deep Barrens has been off-limits to division operations for the entire duration of the research program."
Lin Feng processed this. The deep Barrens, where the residual radiation was stronger, where the pre-Abandonment infrastructure was denser, where the division couldn't safely operate. And someone had built a structure there.
"Cai Zhong's operation was based in the mortal realm's middle territories," he said. "His collectors operated in Linfeng County and surrounding regions. The Archive's hybrid architecture gives them partial resistance to formation-frequency interference, but the radiation levels past forty kilometers—"
"Would be difficult for hybrid-architecture practitioners. Not impossible." Gao Jun was running the calculations. "Wei Sen's hybrid architecture had approximately thirty-four percent match confidence against Hub Seven-West's authentication. At thirty-four percent, a practitioner could operate in elevated radiation for limited periods. Days, not weeks. But a purpose-built facility with radiation shielding, designed for that environment..." He trailed off, which was unusual for someone who normally completed every analytical sentence.
"Someone built specifically for those conditions."
"Someone built in the one place the division couldn't follow them." Gao Jun put the overlay down. "The division's intelligence on Cai Zhong covers eleven years of observation. His network structure, his recruitment methods, his extraction techniques, his operational territory. All of it is based in the mortal realm's middle territories and the near-Barrens."
"All of it that the division knows about."
"Yes." The rod was in his hand. Spinning fast. "If Cai has infrastructure in the deep Barrens, the division has been watching the front of his operation for eleven years while the back operated in a region they physically couldn't reach."
The monitoring sensors updated. The third beast was at four point two kilometers, northeast, approaching at the steady pace of an animal moving through familiar terrain. Lin Feng tracked its formation-frequency signature through his dampened routing sense, keeping the interface at passive minimum to reduce the beacon's output.
This beast was different.
The first three beasts, the wolf and the boar and the cat, had been low-tier. Their formation-frequency signatures had been rough, powerful in the way that raw mass was powerful, but lacking sophistication. Their cycling patterns were simple: layered loops, junction-based architecture, the kind of corrupted energy organization that built up naturally over decades of passive absorption.
The third beast's signature was cleaner. The cycling patterns ran at higher frequencies, the loops tighter and more numerous, the junction architecture more complex. The division's classification system would put this at mid-tier. A beast that had been absorbing formation-frequency energy for longer, or had started from a higher biological baseline, or both.
And it was cautious.
The monitoring sensors showed the beast reaching the three-kilometer perimeter where the first two beasts had been circling. It stopped. The formation-frequency output shifted from travel mode to assessment mode, the cycling patterns redirecting energy from locomotion to the beast's formation-frequency sense.
It was reading the environment.
Two dead beasts. The boar and cat carcasses on the surface, their formation-frequency residue fading but still detectable. Conduit-line disruption signatures, the aftereffects of Lin Feng's ranged interference work, still propagating through the local infrastructure. And beneath all of that, the hub's steady supply-line signal, the conduit infrastructure humming at cascade specification.
The beast did not advance.
It stood at three kilometers and read the terrain the way a hunter who'd found a campsite with dead animals around it would read a campsite. Something killed those animals. Something that might still be here.
"It's assessing," Gao Jun said. The overlay tracked the beast's position. "Not approaching. Not circling. Stationary assessment."
"How long will it stay that way?"
"The division's survey data on mid-tier corrupted beast behavior suggests higher cognitive function than low-tier specimens. Pattern recognition. Threat assessment. Memory." He checked the data. "Low-tier beasts react to stimuli. Mid-tier beasts react to patterns of stimuli. This one is reading the pattern and deciding whether to engage."
If it decided to engage, Lin Feng would have to fight it at forty-nine percent efficiency with cracked ribs, a splinted arm, and a buffer that was still processing three beasts' worth of corrupted energy. The ranged disruption technique had worked on the boar, barely, at the cost of three template points. A mid-tier beast's cycling patterns would be harder to break, faster to regenerate, more resistant to the conduit-line interference.
"I'm going dark," he said.
He pulled the direct conduit interface to zero. The routing sense vanished. The monitoring feeds went silent. The substrate contact with Old Ghost's diminished presence disappeared.
Blind again.
"Do you want the overlay updates?" Gao Jun asked.
"Only if its behavior changes."
Lin Feng closed his eyes and went into the buffer.
---
An hour passed. Two hours.
Gao Jun worked at the workbench. Lin Feng heard the analyst's movements: the soft click of the overlay's controls, the scratch of his rod against the workbench surface when he set it down, the occasional creak of the chair. Sounds of someone doing their own work, running their own analyses, pursuing their own questions.
At some point during the second hour, Gao Jun spoke.
"I've contacted Elder Han."
Lin Feng opened his eyes. He'd been deep in the buffer, breaking patterns from the boar's consumption. The corrupted energy from the boar was organized around mass and endurance, the cycling loops thick and heavily reinforced. Each one took concentration to crack. He'd been making progress, the integration cycle converting the freed energy at a steady rate, his template climbing through the low fifties.
"Why?"
"The building in the deep Barrens. The division's survey data can't help with that. The division has never operated past forty kilometers." He had the overlay's communication interface open, the standard channel that didn't use the conduit network. "But Elder Han's sect has been operating in the near-Barrens independently of the division for years. And he's been debriefing the freed practitioners from the Archive's collection points."
This was Gao Jun's own initiative. His own question, pursued through his own professional network, independent of Lin Feng's instruction or the division's research agenda. The analyst had heard about the building, identified the intelligence gap, and reached for the source most likely to fill it.
"What did he say?"
"He didn't have direct knowledge of construction in the deep Barrens. His sect's operational range is similar to the division's, limited by the radiation threshold past forty kilometers." He pulled up the communication log. "But one of the freed practitioners from the northeastern ruin, the one who'd been in Cai's custody for four months, mentioned something during Han's debriefing that Han didn't know what to do with at the time."
He read from the log.
"The practitioner overheard two of Cai's collectors discussing the transfer of high-value captives. The collectors used a specific word. Not 'location.' Not 'site.' The practitioner said they called it 'the facility.' Han noted the term but didn't have context to place it."
The facility.
"The twenty missing villagers from Lin Feng's village were transferred to a destination the division's intelligence hasn't identified," Gao Jun continued. "Dr. Lian estimated three weeks to develop reliable intelligence on the destination. She was looking in the mortal realm's middle territories, because that's where Cai's known network operates."
"She was looking in the wrong place."
"Possibly. If the boar's sensory fragment is accurate, and if the building in the deep Barrens is connected to Cai's operation, then the transfer destination may be seventy kilometers northwest. In a region the division can't reach and hasn't surveyed."
Lin Feng sat with this. The twenty villagers. His people. Taken from their homes by Cai's collectors, transferred out of Linfeng County six days before the operation, sent to a facility that the division's entire intelligence apparatus couldn't locate because it existed in the one place they had never looked.
"The cascade is spreading northwest," he said.
"Yes. The activation front is moving at approximately two point three kilometers per day. At current propagation speed, the cascade's monitoring sensors will reach the area the boar's fragment indicates in..." He calculated. "Approximately thirty days."
Thirty days. The monitoring sensors would reach the facility's general area in a month. After that, Lin Feng could read the terrain through the conduit infrastructure the way he read the terrain around Hub Fourteen-Northeast. He could find the building. He could assess it.
In thirty days, the twenty villagers would have been in Cai's custody for over two months.
"Can the cascade be accelerated?"
"The cascade's propagation rate is a function of the conduit infrastructure's density and the available energy in the supply network. Your consumptions have increased the energy flowing through the hub's supply lines, which contributes to the cascade's output, but the propagation speed is limited by the physical density of the conduit lines in the propagation zone." He paused. "Maybe. By a small percentage. Not enough to make a significant difference in the timeline."
"What about going there physically?"
Gao Jun looked at him.
"Seventy kilometers. The radiation threshold is at forty. That leaves thirty kilometers of deep Barrens terrain where the formation-frequency radiation is strong enough to degrade the division's equipment and affect practitioners physically." He waited. "You're not a division practitioner with standard equipment."
"No."
"Your direct conduit interface and relay-node architecture give you a different relationship with the formation-frequency environment than a standard practitioner. The radiation that degrades other practitioners' templates might not affect yours the same way. Your architecture is designed to interface with exactly this kind of energy."
"But you don't know that for certain."
"I don't know anything about the deep Barrens for certain. Nobody does." Lin Feng went quiet. The buffer work was still processing in the background of his concentration, the integration cycle converting freed energy while the conversation ran on a parallel track. "We'll need more data before I go anywhere. The beast outside. Dr. Lian's research on the Hub Seven-West pillars. Your analysis of the boar's sensory fragment."
"And your template needs to recover."
"And my template needs to recover."
He closed his eyes and returned to the buffer. The boar's corrupted patterns continued to yield, one by one, their formation-frequency medium freed and converted by the integration cycle. His template climbed through fifty-two, past fifty-three.
At the third hour, Gao Jun spoke again.
"The beast moved."
Lin Feng opened his eyes but didn't reactivate his interface. "Direction?"
"Inward. It crossed the three-kilometer line and moved to one point eight kilometers. Then it changed behavior. It's not circling. It's following a direct path toward the hub."
"Speed?"
"Walking pace. Slow. Deliberate." The overlay displayed the tracking data on the workbench. "It passed the dead boar and cat. It stopped at each carcass for approximately two minutes, then continued."
It was reading the dead beasts. Learning from them.
"Current distance?"
"Four hundred meters. Still approaching at walking pace." He paused. "Two hundred and eighty meters."
"Is it accelerating?"
"No. Constant speed. It's not hunting, Lin Feng. It's approaching a known location with confidence. The assessment phase is over. It's decided."
The beast walked toward the hub at the pace of an animal that knew where it was going and had concluded that what it was going toward could not harm it. It had read the two dead beasts, read the conduit disruption residue, read the patterns of the engagement, and it had decided that whatever had killed the boar and the cat was not enough to stop it.
"One hundred and sixty meters. One hundred and twenty." Gao Jun was reading the overlay in real time. "Ninety meters. It's above the hub. The hatch is—"
He stopped.
"It stopped," he said. "Directly above the hub's hatch position. On the surface." The overlay's display showed the beast's formation-frequency signature as a concentrated point directly over their heads, separated by ten meters of rock and soil and the iron hatch. "It's... it's lying down."
Lin Feng listened. Through the rock above them, he heard nothing. The hub's chamber was insulated from the surface. But the monitoring sensors, even at passive baseline, registered the beast's formation-frequency output as a constant hum in the conduit lines running through the earth above the hatch.
The mid-tier corrupted beast had walked to their front door, assessed the situation, and lain down on top of the exit.
It wasn't circling. It wasn't charging. It wasn't pacing.
It was waiting.
"Template?" Gao Jun asked.
"Fifty-three point four."
The analyst looked at the ceiling, at the hatch, at the overlay's display showing the beast's signature directly above. He picked up his rod. Spun it twice. Put it back down.
"It's between us and the surface," he said. "Between us and Dr. Lian's standby team. Between us and the dead beasts. Between us and any exit from this hub."
"Yes."
"So what do we do?"
Lin Feng looked at the single amber pillar, the conduit lines running through the hub's walls, the diagnostic platform where his template was slowly rebuilding. Above them, ten meters of earth and rock and a corrupted beast that had decided to wait.
"We let it wait," he said. "And we get ready."
