Lin Yuan kept the newcomers under watch for two full days.
Not openly enough to shame them, but carefully enough that no one could move through the sect's outer yards without someone noticing. Bai Lian treated wounds and distributed food while quietly asking questions that revealed more than formal interrogation often did. Su Wan observed the circulation of qi in silence and reported which bodies carried fear, weakness, hidden injuries, or unstable practices. Mo Qian turned casual conversation into an art form and emerged with a neat web of who had come from where, who had lied about family ties, and who was simply too tired to lie convincingly. Gu Tian complained every time someone leaned on the wrong wall or stepped too close to a concealed line, which, to Lin Yuan's surprise, ended up reassuring some of them. A place where an old man shouted about structural care felt more real than one that smiled too politely.
Han Yue hated the arrangement.
"We are feeding mouths while scouts crawl around our ridge," he said on the second evening, pacing the training yard. "If they are bait, kill the bait. If they're not, arm them and use them."
Bai Lian looked at him as if he had suggested poisoning the spring. "They are people."
"They are variables."
Mo Qian leaned against a pillar. "You make variables sound much less useful than they often are."
Jian Mu, who had been practicing sword forms at the edge of the yard, lowered his blade. "If enemies come through them, we cut through both."
Bai Lian's face tightened. Before the argument could deepen, Lin Yuan stepped between them.
"No one draws conclusions out of impatience," he said. "Not in my sect."
Han Yue's mouth hardened, but he bowed his head a fraction. Jian Mu straightened at once. Bai Lian exhaled slowly. Mo Qian smiled faintly, amused that Lin Yuan could halt conflict faster with a sentence than some sect leaders did with punishment.
That night the attack came.
Not at the main gate.
Not from the upper ridge where Han Yue had found the earlier signal mark.
It came along the narrow lower path used by herb gatherers and exhausted travelers, the exact route on which fear made people look inward and hope made them careless.
The first warning was not a shout. It was Su Wan raising her head sharply from where she sat near the cold side wall.
"Blood," she said.
Jian Mu moved before anyone else asked what she meant.
The second warning followed half a breath later: one of the outer newcomers—a boy barely fourteen—stumbled into the yard with his tunic slashed across the side and collapsed hard enough to scatter the lamp beside him. Bai Lian ran to him. Han Yue spun toward the lower path. Mo Qian's smile vanished. Gu Tian barked for the inner seal line to be readied.
Then the night split open with steel.
Three figures rushed the path entrance first, masked and fast, dressed in rough traveling gear meant to resemble bandits. But real bandits did not move like this. Their footwork was too disciplined, their spacing too measured, and the faint smell clinging to them was wrong: old herbs, bone powder, and preserved blood.
Valley dogs, Lin Yuan thought immediately.
"Hold the gate line!" he shouted.
Han Yue did not wait to be told twice. He crashed into the lead attacker with the joy of a man finally handed permission to break something. Jian Mu flashed past him like a drawn stroke of black iron, his blade taking the second attacker across the thigh before the man fully adjusted to his speed. The third tried to veer into the yard rather than engage directly.
Su Wan froze the stones under his feet.
He slipped. Mo Qian's dagger found the gap beneath his ribs.
The first exchange was over in heartbeats—but it had only been the beginning.
More shapes moved in the dark beyond the path. Two of them threw packets that burst in the air, releasing gray dust meant to numb the senses and obscure sight. Gu Tian slammed his cane into the ground, activating a half-formed boundary line that bent the dust sideways before it could flood the courtyard. Mu Qingxue, arriving from the inner hall with seals already lit between her fingers, redirected the lower lantern array and turned shadows into false openings.
"They're probing the route and our response!" she called.
"Then let them bleed for every answer," Lin Yuan replied.
One masked attacker broke from the side, aiming not for the main fight but for the shelter area where the newcomers and weaker wounded had been placed. Bai Lian saw it and did not retreat. She dragged the injured boy behind a storage pillar, threw a burst of powdered herb into the attacker's eyes, and shouted for two of the older newcomers to get everyone back. The man lashed out blindly. Her sleeve tore. Before he could strike again, Jian Mu's blade entered from behind his shoulder and drove him to his knees.
Han Yue laughed—actually laughed—as he fought. "At last! These are better than frightened clan trash!"
"They are also coordinated!" Mu Qingxue snapped. "Stop chasing kills and hold the line I marked!"
He wanted to argue. Instead, to Lin Yuan's surprise, he obeyed. The new formation marks she had thrown on the lower path became kill channels only if someone disciplined enough stood where she needed him. Han Yue planted himself there like a pillar of flame and punished every attacker forced into the narrowing route.
Lin Yuan entered the fight where the enemy's true objective became clear.
A woman's voice from the dark called, "Take the cold one!"
Su Wan.
So that was it.
Not a full raid on the sect. A targeted snatch attempt wrapped inside a pressure test.
Lin Yuan's expression went cold. He cut down the first man who lunged toward Su Wan and then drove forward, forcing the attackers back toward the funnel Mu Qingxue had built. Mo Qian slipped around one flank and sliced the cords holding a hidden hook-launcher before it could fire. Gu Tian activated one old buried line under the path, collapsing a section of stone just enough to ruin the enemy's escape route.
The attackers were good.
Not enough.
Once the first two died and a third lost mobility to Su Wan's frost, their precision faltered. They had expected a poor sect with scattered defenses and half-trained members. What they found instead was a founder who turned pressure into order, a formation master in all but title, a mad lancer who obeyed just enough to remain useful, a silent sword-disciple, a healer who refused to panic, a cunning infiltrator who fought dirtier than any assassin, and a cold girl they had gravely underestimated.
The last two tried to retreat.
One escaped into the dark, wounded and limping.
The other nearly did.
Mo Qian tripped him with a wire loop hidden under dust while Han Yue smashed him flat with the shaft of his spear.
When the yard finally fell quiet, the smell of blood sat heavy over the lower stones.
Bai Lian moved at once among the injured. Su Wan wiped blood from her sleeve and looked less shaken than angry. Jian Mu cleaned his blade with one motion. Han Yue stood breathing hard, face bright with battle heat. Gu Tian checked the damaged formation marks, swearing at every wasted line as though that were worse than bodies. Mu Qingxue crouched beside the captured attacker and pulled back his sleeve.
Bone-thread tattoos wound along the inner arm.
Her face hardened.
"It's the Valley of Silent Bones."
No one questioned her certainty.
The prisoner was dragged into the inner hall in bonds reinforced by both rope and seals. Lin Yuan stood over him while the others gathered around, and for the first time since founding the sect, the Primordial Firmament Sect faced not a local bully or a territorial clan—but a living thread tied to one of the darker forces operating beneath the region's surface.
They had crossed the threshold.
There would be no pretending otherwise now.