It didn't come through the entrance.
That was the first thing Yuan registered, the main hall had two reinforced doors, both barricaded with furniture and ambient mana barriers that the higher-ranked students had spent the last ten minutes assembling. Reasonable precaution. Completely irrelevant, as it turned out, because the Gargoyle King came through the wall.
The stone didn't explode outward dramatically. It just gave. Compressed, cracked, and then a section of wall roughly three meters wide folded inward like something had decided walls were a suggestion, and the dust hadn't even settled before the thing was inside.
Yuan had a moment to take it in from his position near the column by the entrance.
Gargoyle King. The field guide entry he was rapidly constructing from memory described them as dungeon territorial apex variants, C-rank baseline, occasionally upgraded to C+ in high-saturation mana environments. He was looking at the C+ version. Easily four meters at the shoulder, hunched forward on limbs that were more architecture than anatomy, thick stone-grey hide calcified into natural plate that caught the mana lamp light and absorbed it. Its face was broad and low, jaw disproportionate to the rest of it, and when it exhaled the sound was like a millstone being dragged across granite.
It looked at the room full of students and made a noise that wasn't quite a roar.
More of an assessment.
The students near the center broke first. Not everyone, some of them held, frozen rather than fleeing, but a wave of movement went through the crowd, and the sound that came with it was the specific frequency of people who had passed through fear into something more animal. Someone fell. Someone else ran into a wall trying to find a door they weren't near.
The A-rank students were already moving to the front before the dust finished settling.
There were three of them. Yuan recognized two from the combat track rankings, a broad-shouldered second year named Dao Fen who ran an earth reinforcement build, and a girl whose name he didn't know but whose fire affinity had placed second in last semester's inter-rank exhibition. Li Meilin took the center without discussion, because of course she did, and the three of them formed a line between the Gargoyle King and the rest of the hall.
The Gargoyle King looked at them.
Then it stepped forward, and Dao Fen drove both fists into the floor and a wall of compressed earth rose between them, two meters thick.
The Gargoyle King walked through it.
Through the compressed earth compressed further and then fragmented, and Dao Fen caught the concussive feedback through his own skill and staggered, blood at his nose. The fire-affinity girl launched a sustained burst that splashed across the Gargoyle King's left shoulder and, did something, there was visible damage, the stone hide cracking in a three-centimeter radius, steam rising, but three centimeters on a creature that size was cosmetic.
Li Meilin went for the eyes.
It was the right call. Yuan watched her read the same thing he was reading, hide too thick for area damage, joints too reinforced for structural attacks, and go straight for the most viable target. Ice spike, formed and launched in under a second, precise enough that he'd have thought it was a ranged weapon if he hadn't seen the mana formation with his own eyes.
The Gargoyle King turned its head.
The spike skipped off the brow ridge and took a chip of stone out of the wall instead.
It raised one arm and brought it down.
Li Meilin moved, Shadow Step tier speed, Yuan noted distantly, or close to it, but the impact radius was wider than the strike itself, a shockwave of displaced air and pulverized floor stone that caught her at the edge and sent her sliding back six meters across the hall. She came up on one knee, both hands flat on the ground, breathing.
The fire-affinity girl was already pulling Dao Fen back from the creature's reach. He was conscious but not functional, his earth reinforcement had taken the feedback damage straight through his nervous system and his hands weren't responding right.
Two fighters down to one in under forty seconds.
Yuan pressed his back against the column and kept his breathing quiet and made himself think.
[Ding!]
[Monster Detected: Gargoyle King]
[Rank: C+]
[Abilities: Stony Skin (Passive) | Stone Fist (Active) | Roar of Intimidation (Active)]
[Weakness: High-frequency vibrations. Concentrated piercing attacks.]
He read the weakness notification twice.
High-frequency vibrations. Concentrated piercing. Li Meilin's spike had been on the right track, piercing, precise, but she'd aimed for the eye and the brow ridge had deflected it. The weakness wasn't about where to hit. It was about delivery. Diffuse damage was useless against that hide. Concentrated force, applied correctly, was a different equation.
He watched the Gargoyle King turn its attention back to Li Meilin and thought about Shadow Step. Three seconds of intangibility, semi-instantaneous repositioning, enough speed to close distance before a C-rank monster's reaction time could fully register. He thought about the utility knife he'd lost in the passage with the Shadow Stalker. He thought about the piece of broken stone he'd used on the Dire Wolf at the junction, which was still in his jacket pocket, roughly the shape and weight of a short blade.
But concentrated. And if he could get inside the Gargoyle King's guard, under the arm, toward the joint where the hide calcification was thinner, the anatomical overlap he could see clearly now that his Mana Sense was painting the creature's internal structure in rough strokes.
Li Meilin hit it with three rapid ice formations in sequence, buying space, and the Gargoyle King absorbed all three and kept walking toward her.
She was running calculations too. He could see it in her face, the way her expression had gone very still, the specific stillness of someone who has arrived at an answer they don't like. She wasn't out of options yet. But she was close enough to see the end of them.
The students behind her had compressed toward the far wall. Sixty-odd people, injured and exhausted, half of them too low-ranked to contribute anything and smart enough to know it. The A-rank line had effectively become one person, and that one person was currently backing up in measured steps, buying seconds.
The Gargoyle King stopped.
It opened its jaw, wider than the anatomy should have allowed, the stone hide around its neck cracking with the extension, and the sound that came out wasn't a roar. It was subsonic first, a pressure wave that Yuan felt in his back teeth, and then it scaled upward into something that hit the mana lamps and made them flicker in sequence, left to right across the hall.
[Ding!]
[Roar of Intimidation — Active]
[Effect: Targeted fear response. High probability of stat suppression in affected targets.]
Half the students in the back went to their knees. Reflex, the kind that bypasses conscious decision. Even Li Meilin's footwork stuttered for a half-step.
Yuan felt it too. Something cold and irrational that tried to pin his feet to the floor.
He looked at the Gargoyle King's right arm joint. The Mana Sense outline of it. The thin calcification line where the shoulder met the upper limb, a structural compromise that the creature's designers, if dungeons had designers, if any of this was designed, hadn't fully resolved.
Then he looked at the sixty students compressed against the far wall, and Li Meilin alone between them and it, and the Gargoyle King beginning to draw that arm back with the specific slow weight of something that had decided to stop being patient.
Yuan pulled the stone shard from his jacket pocket.
'Concentrated force,' he thought. 'Applied correctly.'