The five points sat in his status window like a question that required a correct answer.
Yuan looked at his current stats and tried to be honest about what the last two hours had actually demonstrated.
Strength eleven: functional, enough to make his strikes matter against compromised structures, not enough to damage anything that hadn't already been softened by other means.
Agility twelve: the best number he had, and the one Shadow Step had built on most visibly.
Vitality twelve: bumped by Stony Skin, currently doing the quiet work of keeping him operational.
He thought about the Mana Golem. The strike to the chest convergence, he'd put everything into it and it had worked, but barely. Another ten percent of the Golem's original composition and it might not have. Strength was a ceiling he'd already brushed against.
He thought about the Stone Burst. Twenty-four HP through a B-rank passive defense. Without Stony Skin it would have been significantly worse, which meant Vitality wasn't a luxury stat, it was a structural necessity in a dungeon that was now running at C-rank saturation with something worse presumably at the bottom.
He thought about Shadow Step. Three-point-two seconds of intangibility, nine-and-a-half second cooldown. Everything in his combat approach ran through that skill, every strike, every escape, every repositioning. It responded to Agility the most directly.
Twenty-seven minutes.
Stop deliberating, he told himself. You know what you need.
He allocated two points to Strength, two to Agility, one to Vitality.
[Ding!]
[5 Stat Points allocated.]
[Strength: 13 (+2) | Agility: 14 (+2) | Vitality: 13 (+1)]
The sensation arrived before he'd finished reading the notification.
This was recalibration. Like a machine that had been running slightly misaligned suddenly finding its tolerances, every moving part settling into a position that made the whole mechanism quieter and more efficient.
His Agility increase registered first, a looseness in his joints, his weight redistributing slightly differently across his feet, the ambient spatial awareness that Battle Instinct fed him sharpening by a degree that was small individually and would compound with movement. He shifted his weight and the motion came back to him faster than he expected, like the floor was less resistant than it had been thirty seconds ago.
The Strength increase was in his hands. He pressed his right palm against the chamber wall, applied pressure until the stone gave slightly, not crumbling, just the micro-compression of force exceeding material resistance at a contact point, and felt the number in it. Thirteen wasn't a large number by any objective measure. Compared to eleven, it was the difference between a strike that damaged compromised structures and a strike that could begin to compromise them.
He pulled his hand from the wall and looked at the faint impression in the stone.
Useful, he decided.
---
The fourth level of the dungeon had a different composition than the levels above.
The stone was darker, denser, the kind of geological material that formed under sustained pressure over long periods. The corridor architecture had abandoned any pretense of the academy's design language, no maintenance markers, no emergency beacon housings, no mana-reactive moss. Just raw cut stone and the kind of silence that existed in places people weren't meant to reach.
His Tremor Sense was producing a continuous feed now, the slow pulse of the fractured core below him underlying everything like a second heartbeat. He was getting better at parsing the input, distinguishing the structural rhythm from active signatures, reading the dungeon's physical state through the soles of his feet the way his Mana Sense read it through the air.
He caught the Fire Imp's signature forty meters out.
It was perched in the ceiling, literally, clinging to the stone with adapted limbs, C-rank fire affinity, body temperature high enough that his Mana Sense resolved it as a heat differential rather than a mana pattern. Ranged type. It was tracking something below it, him, presumably, with the patient readiness of something that preferred to strike from above.
Yuan activated Shadow Step before it fired.
The fire burst hit the space he'd been occupying and scattered against the corridor wall, and he came out of the skill behind and below the creature's position, reached up, and put two fingers into the mana channel cluster at the base of its spine. The Agility increase was immediately apparent, he got the contact faster than the Fire Imp's reaction time could process, which meant it didn't get a second shot.
It came off the ceiling.
He extracted the core before it finished falling.
[Ding!]
[C-Rank Fire Imp defeated. Experience +70]
[Ding!]
[Ability Extracted: Fire Imp — Ember Shot (C-Rank)]
[New Skill Acquired: Ember Shot]
[Rank: C | Type: Active | Cost: 15 MP | Description: Launches a concentrated bolt of fire mana at a target. Range: 30 meters. Cooldown: 5 seconds.]
He looked at the MP cost and did the math. Current pool at roughly forty after the Golem fight. Ember Shot at fifteen per use, two shots before he started cutting into reserves he needed for Shadow Step. Ranged option, which he hadn't had before, but the cost-to-benefit ratio against Shadow Step's nine-and-a-half-second window meant he couldn't treat it as a primary tool.
The Earth Elemental was three corridors deeper and significantly less subtle.
It occupied the full width of a wider passage, an assembled construct, like the Mana Golem but cruder, more mass and less precision. C-rank, slow, its mana architecture external rather than internal. The channels weren't inside it, they were its surface, dense earth mana cycling visibly across the outer layer in patterns he could read clearly.
The weakness was obvious once he stopped thinking about brute force.
Earth Elemental constructs maintained form by cycling mana continuously through a closed circuit. Interrupt the circuit at the right point and the cycling collapsed. He didn't need to damage the mass, he needed to find the circuit's weak node, the point where the mana flow was thinnest.
His Sense found it at the left shoulder, a narrowing in the channel pattern, where the cycling made a tight corner and the mana compressed to pass through.
He went in with Ember Shot from fifteen meters, concentrated burst aimed at the narrowing.
The circuit interrupted.
The Elemental didn't collapse dramatically, it settled, the assembled mass losing cohesion over three seconds, the earth mana dissipating into the ambient saturation around them. Less a death than a disassembly.
[Ding!]
[C-Rank Earth Elemental defeated. Experience +80]
He checked his MP. Thirty-one. The Ember Shot had cost fifteen and Shadow Step had taken another ten across the two encounters. His recovery rate at Intelligence ten was slow, he could feel the pool refilling incrementally, but not at a pace that made him comfortable about what the dungeon's bottom level was going to require.
Manage it, he thought. Don't use Shadow Step for repositioning when walking works. Don't use Ember Shot when direct contact is faster.
He was applying that logic to the next corridor, mapping the approach, measuring the distances, when his Tremor Sense spiked with something that wasn't the structural pulse.
Multiple footsteps of running.
And underneath them, the heavier signatures of C-rank monsters, more than three, moving with the coordinated pressure of things that had established pursuit rather than patrol.
He came around the corridor junction fast and stopped.
Five students, backs against the far wall of a wide chamber. Their formation had collapsed into pure proximity, everyone touching someone else, the specific clustering of people who'd stopped thinking about tactics and started thinking about not dying alone. Their mana signatures were dim and ragged, the particular quality of people who'd been running on adrenaline for two hours and had finally run out of dungeon to run through.
He recognized the one at the left end of the cluster before he saw his face. The mana signature was familiar in the way that things you've known for years become familiar, not distinctive enough to consciously identify, just right in a way that wrong would be immediately apparent.
Zhang Wei. Round-faced, E-rank reinforcement build, the person who had clapped Yuan on the shoulder at the dungeon entrance four hours ago and said one more day like a shared prayer.
The C-rank monsters filling the other side of the chamber were a mixed type, two of the wind constructs from the lower levels, one Fire Imp still airborne, and two things he didn't have a classification for yet, heavy and quadrupedal, mana signatures dense and cold.