The shortcut was a cliff face.
Not metaphorically — an actual vertical surface of approximately forty meters that Tang Shuya had mapped in advance and which the four of them were now ascending with the collective energy of people who had committed to something and were not going to admit they had concerns about it.
"You've done this before?" Lieya said, somewhere above him.
"Once," Tang Shuya said. "From the other direction."
"You went down this."
"Controlled descent. It's the same cliff."
"It is not the same experience," Lieya said, and went back to climbing.
Xiao Yan climbed with the Body Path providing the grip strength and the Codex Eye reading the rock face for the holds that would bear weight and the ones that wouldn't — the mountain's geology compressed and layered in a way that looked uniform from below and was anything but up close. He found the real holds through the Eye's material reading and moved along them with a pace that was faster than the cliff deserved.
[The cave entrance is twelve meters left of the crest,] Michael said. [You'll see it when you reach the top — dark opening, roughly oval, approximately two meters across. Don't go in without the group.]
"Why."
[The Sound-Seekers are echolocation predators. Single cultivators entering disturb the air pattern differently than groups. A group mimics larger prey and they assess before engaging rather than attacking immediately.]
"That's comforting in a very specific way."
[I thought so.]
He reached the crest. Looked left.
The cave entrance was there — dark, oval, the air coming out of it carrying the specific cold of deep stone mixed with something biological that his Frozen Origin Physique read as alive and organized and numerous.
The others arrived over the crest in sequence. Tang Shuya last, dusting her hands against her robes with the particular calm of someone who had made peace with the physical demands of the situation.
"The spiders," she said, producing a small formation stone from her sleeve, "respond to sound and movement. Fast movement is worse than slow movement. But standing still is worse than both — they interpret stillness as ambush preparation." She looked at the group. "Keep moving, keep pace, don't run until I say run."
"When do you say run?" Jinyao said.
Tang Shuya looked at the cave entrance. "You'll know."
They went in.
The darkness lasted approximately four seconds before the Codex Eye's ambient read filled in what the eyes couldn't provide. The cave was larger than the entrance suggested — the oval opening concealing a space that widened dramatically inside, the ceiling rising to ten meters or more, the floor covered in a material that wasn't stone and wasn't soil but moved with the slow, deliberate quality of something that was alive in aggregate.
The Sound-Seekers were approximately the size of a large hand. Brown, flat, with legs that folded flat against the body when still and extended to a considerable span when moving. They covered every surface — walls, ceiling, floor — in a density that made the cave's actual geology invisible.
None of them were moving.
Xiao Yan kept his pace exactly what it had been outside. Steady. Deliberate. The sound of his footsteps consistent with the sound of his footsteps at the entrance, no change in rhythm that would register as altered intention.
[The Mother is at the cave's center. Roughly eighty meters in. You'll feel her before you see her.]
He already felt her.
The Spider Mother's presence read through the Codex Eye as a cultivation node — a central concentration of spiritual energy that the surrounding Sound-Seekers connected to and drew from. Not unlike the Azure God Flair's hall formation, actually. A central power feeding a network.
He filed this.
The demon disciple they'd tracked from the approach road had apparently made a different decision about the cave shortcut — his energy signature was somewhere behind them, outside, which meant he'd either found another route or had assessed the cave entrance and made a sensible choice that the four of them had not made.
"The activation point is the Mother's nest," Tang Shuya said, barely above a whisper. "If something disturbs the nest—"
A sound.
High-pitched, brief, the specific quality of a vibration that had been designed to carry through a closed space and coordinate multiple receivers simultaneously.
The Sound-Seekers moved.
"Run," Tang Shuya said, with the calm of someone who had been waiting for this specific cue.
They ran.
The cave became a different space in motion — the Sound-Seekers flowing off the walls and ceiling in organized waves, the echolocation pulses from thousands of small bodies filling the air with a frequency that the Codex Eye translated as directional pressure, the whole colony moving as a single entity with the specific intelligence of things that had been doing this for a very long time.
Xiao Yan ran with the Thunder Veins compressing the movement and the Codex Eye mapping the clear floor sections ahead — not clear of spiders, nothing was clear of spiders, but clear enough to run through without tripping on a density that would bring him down.
"The Mother's nest is ahead," Tang Shuya said, running beside him. "Past her is the exit. The exit exists."
"You said technically accessible before."
"I've revised my confidence upward."
"How upward."
"Meaningfully."
[The Mother is aware,] Michael said. [She's been aware since you entered. She was waiting to see what you'd do. The colony activation wasn't triggered by you — the demon disciple threw a stone from the entrance. Outside. To flush you.]
"The demon disciple flushed us deliberately," Xiao Yan said.
"How resourceful," Jinyao said, in the tone she used when she was filing something to be angry about later.
The Mother came into view around the cave's central curve.
The eyes were the size of watermelons and glowing red and had the quality of something that had been sitting in the dark for a very long time and had opinions about the noise.
"We're going toward it?" Tang Shuya said, running next to him.
"The spiders behind us are worse than the one in front," Xiao Yan said. "The ones behind are thousands. The one in front is one."
"One that's the size of a carriage."
"Big target," he said. "Lieya loves big targets."
From behind them, without turning around, Lieya said: "I do love big targets."
[Celestial Stage,] Michael said. [Low layer. She's the colony's cultivation node. Break the spiritual core and the colony loses cohesion. Center mass, behind the second pair of legs. Sheltered — she's evolved defensive placement specifically because cultivators have tried this before.]
"How many have succeeded."
[Three. In ten thousand years.]
"Then we're going to be four."
[Optimistically, yes.]
He watched the Mother rear — the movement that exposed the underside, and there, exactly where Michael had said, a faint luminescence pulsing in rhythm with the colony's motion. The spiritual core. Protected by the leg formation, accessible only if you could get underneath the body while it was rearing.
Which it was currently doing.
"Shuya," he said. "Formation. Front legs."
She understood immediately. The fan opened and she dropped into a crouch, planting her free hand on the floor — and the stone under her hand shifted, the Ocean Codex Heart pulling moisture from the cave's walls and floor and compressing it into a directional current running toward the Mother's front legs.
The front legs hit the water formation and found it slippery. Just slippery. Not enough to topple something that size. But enough to shift the balance thirty degrees forward, the rearing posture compensating, which opened the approach line by approximately four meters.
"Lieya," he said. "Cover."
She was already moving — not toward the core, toward the front legs, the Flame-Thunder Gauntlets producing the sensory overload that fire-type cultivators used against large enemies. The balance issue worsened.
The body shifted further.
Xiao Yan went underneath.