Gu Tian did not wait for anyone to sit down.
The instant they returned to the surface—with the memory crystal, Mu Qingxue's sketch of the damaged mural, and dust and minor bloodstains still marking their robes—he kicked a broken stool aside, cleared the central table, and demanded light. Bai Lian brought three lamps. Han Yue hovered nearby with the offended expression of a man who had been left out of exactly the kind of danger he preferred. Jian Mu stood in the doorway, taking in every detail without asking a single question. Su Wan lowered herself near the table's far end, listening to the mountain through the stone beneath her boots.
Mu Qingxue placed the sketch first, then the fragment rubbing of the pillar channels, and finally the memory crystal itself.
When Gu Tian saw the crystal, his face changed. The carelessness he wore like a second robe vanished completely.
"Again," he said.
Mu Qingxue reactivated the crystal with a controlled thread of qi. The image rose above the table in fractured light: the buried routes, the linked nodes, the heart motif deeper below, and the sequence of deliberate destruction spreading through the formation network.
This time, with everyone present and Gu Tian fully focused, the room felt less like a sect hall and more like a war council over a corpse that had not finished dying.
Han Yue broke the silence first. "So the mountain is sitting on a massive old formation. Fine. Why do all of you look as if that's worse than good fortune?"
"Because fortune without understanding is just another form of bait," Mu Qingxue answered.
Gu Tian pointed at the crystal image. "This wasn't some local formation for storing spirit stones or hiding a family treasury. This was one branch of a much larger network. A true network. Support, transit, transfer, perhaps even route linkage across enormous distances." He tapped the broken heart motif. "And this below us is the central node for this branch."
"The buried heart," Bai Lian said softly.
"Yes," Gu Tian replied. "And if that heart wakes the wrong way, the mountain may either rise with us or tear itself open around us."
Mo Qian folded his arms. "At last, a balanced possibility."
Lin Yuan remained silent while the others argued over fragments of meaning. He listened to the mountain's changed rhythm beneath the floorboards and kept his face composed. The system had shown him a brief internal notice when the crystal first activated—subnode acknowledged; central branch dormant but responsive—but he had dismissed it before anyone could notice the flicker in his gaze. That secret remained his alone.
Mu Qingxue placed one finger on her sketch. "There is another issue. The severance marks in the crystal sequence were controlled. This network was not destroyed by age, by accident, or by a beast stampede. Someone cut it apart deliberately."
"Which means two things," Gu Tian said. "First, people powerful enough to damage this once existed. Second, whoever did it feared what would happen if the routes stayed alive."
Han Yue frowned. "Or they wanted to own it alone."
"That too," Mo Qian said. "Greed and fear are siblings."
Jian Mu stepped closer to the table. "If others once knew this existed, they may come again."
The room went quiet.
Because that was the real shape of the danger.
Not just collapse. Not just buried power. Not just the unknown. But attention. Claim. Predators.
Bai Lian looked from one face to another. "Can it be hidden again?"
Mu Qingxue shook her head after a pause. "Not in the way it was. The pillar already reacted to the key fragment. The mountain has answered us once. Dormant structures do not always return politely to sleep."
Gu Tian gave a grudging nod. "At best we can stabilize what has begun and control how much it wakes. At worst we touch it badly and invite either destruction or notice from forces stronger than us."
Han Yue leaned forward, impatience burning through him. "Then why not awaken it enough to make us stronger before anyone else arrives?"
"Because if you feed a starving beast too quickly, it dies," Gu Tian snapped. "And if you pour qi into a dead channel without understanding load, sequence, and return balance, you do not become stronger. You become part of the repair material."
That answer satisfied Han Yue only slightly more than a slap would have.
Mu Qingxue lowered the crystal and let the image fade. "The node responded because the incomplete key resonated with it. But response is not control. To move from one to the other, we need three things."
"Materials," Gu Tian said immediately.
"Correct sequence," she added.
"And intent strong enough not to be rejected," Lin Yuan finished.
Every eye turned toward him.
He had not meant for the last thought to emerge aloud, but once spoken it felt right. The buried routes were not passive mechanisms. Everything they had seen suggested layered authority, recognition, and command. A heart could not be forced open like a storage box. It had to accept the pulse reaching it—or at least fail to reject it.
Gu Tian narrowed his eyes. "Explain."
Lin Yuan chose his words carefully. "The lower structures did not answer to force alone. The pillar responded to resonance, then to sequence. If the central heart beneath that branch still carries any governing logic, materials and seal order will matter—but so will the one who leads the activation."
Mu Qingxue studied him for a moment, as if weighing how much of that conclusion came from inference and how much from something deeper. She did not press him. Instead she nodded once.
"He is right."
Bai Lian frowned slightly. "Then if it rejects the founder…"
No one completed the sentence.
Mo Qian finally did, because he never left dangerous thoughts in half-measures. "Then our mountain may kill the one person holding this sect together."
Lin Yuan met the statement without flinching. "Then I won't let it."
A small, brittle laugh escaped Han Yue. "That sounds less like confidence and more like stubbornness."
"In Lin Yuan's case," Gu Tian muttered, "the difference is not always meaningful."
The discussion continued until the lamps burned low. They listed needed materials, possible stabilizing measures, and the condition of the outer defenses. Mu Qingxue and Gu Tian argued twice over whether the route-heart was primarily a transport node or a sect-domain support structure. Jian Mu volunteered for whatever required direct danger. Bai Lian quietly organized practical concerns no one else had remembered. Su Wan listened more than she spoke, but when she finally did, everyone paid attention.
"The pulse below is stronger when the mountain is calm," she said. "And weaker when too many energies collide at once. If you wake it, do not let the sect fall into chaos during the process."
The room fell silent again.
Because that, too, mattered.
A buried heart did not beat well under disorder.
At last Lin Yuan drew the discussion to a close.
"We proceed," he said. "Not recklessly. Not slowly enough for others to take the choice from us. The mountain has already answered once. We either understand what lives beneath us or we wait for someone stronger to understand it first."
He looked at the sketch, the crystal, and the fragment. Then he looked around the hall—at Jian Mu's sharpened stillness, Bai Lian's worried determination, Han Yue's restless fire, Mo Qian's dangerous cleverness, Su Wan's cold silence, Mu Qingxue's contained resolve, and Gu Tian's bitter old knowledge.
They were still weak.
Still small.
Still vulnerable.
But they were no longer blind.
When everyone finally dispersed, Lin Yuan remained by the table a little longer. He touched the edge of the memory crystal with one fingertip and felt the medallion react beneath his clothes.
Somewhere below, deep within the buried structure, the heart had felt that first pulse.
And for the first time in ages, it had recognized the existence of the sect above it.