The chamber doors dissolved behind him like smoke swallowed by wind, and Rean felt the shift in air pressure before he saw anything. A dungeon had its own kind of breath — the way it exhaled when you crossed the threshold into a boss room told you everything about what waited inside.

This one hit him like a wall.

The chamber was enormous, carved from pale stone that had been bleached further by something living inside it for too long. The ceiling vaulted upward into darkness, and perched at the far end of the room on a natural column of rock that jutted from the floor like a broken tooth, was the reason the air felt the way it did.

A bird.

No — *the* bird.

It was massive. Easily fifteen metres from the crown of its angular skull to the base of its taloned feet, with a wingspan that, when it unfurled them in greeting — or threat — seemed to consume the entire far wall. Its feathers were the colour of hammered bronze, each one individually the length of a shortsword, and where light caught them they shimmered with that particular dull sheen that dungeon-born creatures carried, like the world had never quite finished rendering them.

Its eyes found him immediately. Twin points of amber fire, sharp with an intelligence that Rean had not expected.

A rank.

He had known it would be difficult. He had not expected to feel the floor vibrate simply from the creature shifting its weight.

"Right," he said quietly, to no one.

He charged.

---

He closed the distance fast, mana already cycling up through his channels in tight coils, and as he reached the halfway point of the chamber he released the first volley — mana pulses, compressed bursts of raw energy fired in sequence, each one the size of a fist and moving faster than most people could track.

The bird moved faster.

It pushed off the column with a single beat of those enormous wings and the resulting shockwave hit Rean like a physical thing, skidding him sideways across the stone floor. The pulses detonated harmlessly against the far wall, cratering the rock in a neat diagonal line. By the time the dust settled the bird had repositioned itself to the upper left corner of the chamber, regarding him from altitude with something that resembled contempt.

Rean steadied himself and exhaled slowly.

Pulses were clean and reliable. They were also, apparently, too slow for something that had spent its entire existence mastering the air.

He needed a different approach.

---

He reached for Man — or more precisely, he reached for *Multiman*.

---

**[Man]** — *A core skill of the Blank classification. Unlike conventional mana manipulation, Man draws on the user’s own vessel architecture to generate a secondary state of existence. In its base form, Man allows the user to either phase into intangibility — passing through non-living matter and becoming immune to physical impact — or slip into full invisibility, rendering themselves undetectable to standard perception including mana-sight below a certain threshold. The two states cannot be held simultaneously in base form.*

**[Multiman]** — *An evolved application of Man. Where the base skill forces a choice between states, Multiman runs them in parallel — simultaneously generating an invisible, intangible duplicate of the user while the user maintains a separate physical presence. The clone produced by Multiman inherits the user’s mana signature and mimics movement autonomously for a short window. Advanced use allows for independent control of both instances, though the cognitive load increases sharply with duration.*

---

He had only used Multiman a handful of times in live conditions. It was not the kind of skill that forgave mistakes.

He activated it.

The split was immediate and disorienting in the way it always was — like standing up too fast, a half-second of wrongness, and then he was two things at once. His physical self remained planted on the chamber floor. The clone materialised slightly ahead and to his left, invisible and intangible, already moving on his intent.

The bird’s eyes tracked him. His physical self.

The clone circled wide and came in from above the bird’s right flank — a vector it wasn’t watching. Rean fed mana into the clone’s hand, solidified it just enough for a single pass, and slashed.

The blade caught feathers. Bronze-tipped, long as his forearm, they drifted to the floor below.

But the bird was already moving — it had felt the shift in air, perhaps, or some other sense Rean didn’t have a name for. It screamed, a sound that rang off every wall at once and set his teeth aching, and launched upward, those massive wings snapping open and driving it toward the ceiling.

The clone destabilised. Rean let it go.

He was already reaching for something else.

---

*Untethered.*

Not a skill in the formal sense — no registration, no mana society taxonomy. It was a technique Rean had built from the bones of his vessel architecture, an application of Man’s intangibility principle applied not to his body but to the forces acting on it. Gravity. Friction. Inertia. For a short duration, he became functionally unbound from the physical logic that applied to everything else.

What it meant in practice was simple.

He was *fast.*

---

He hit the air like a stone hits water — vertical, no runway, just will translated directly into velocity. The chamber rushed past him in a blur of pale stone and the bird registered his approach in the same moment he reached its altitude. The amber eyes swung toward him. Wings adjusted. It was preparing to strafe.

Rean adjusted faster.

Untethered made him weightless but it did not make him reckless — he had learned that the hard way, months ago in a practice corridor with bruises that took a week to fade. Speed without vector was nothing. He read the bird’s wing angle, predicted the banking turn it was about to execute, and cut across its trajectory at an angle that forced it to abort or collide.

It chose to abort.

And just like that, they were in it properly. A full chase, altitude shifting second to second, the bird’s wingspan filling his peripheral vision every time it banked close. It was not trying to escape — he understood that within the first few exchanges. It was measuring him. Testing how he moved, where he over-committed, whether his speed had a pattern it could exploit.

Smart.

He fired mana beams between the gap — faster than pulses, thinner, drawn out into lances of concentrated energy that lit the chamber in stuttering blue-white flashes. The first one clipped empty air to the bird’s left. The second was closer, and the creature spun sideways with a speed that still surprised him, letting the beam pass close enough to singe the leading edge of its wing.

It screamed again and drove straight at him.

Rean broke upward and right, the Untethered technique letting him cut the angle sharply, and they passed each other at speed close enough that he felt the displaced air as a physical blow. He spun in mid-air, lined up the shot, fired twice.

Both beams tracked wide as the bird executed a rolling dive and came back up beneath him.

He dropped before the talons connected, slipping downward in a controlled fall, and they separated to opposite sides of the chamber like magnets briefly repelling. A half-second of stillness. Both of them reading the space.

Rean’s mana reserves had slipped. He could feel it — the Untethered technique burned more than most skills, and the Multiman activation before it had not been free. He had maybe one more significant exchange at full output before he would need to start managing carefully.

One shot.

The bird was circling the upper edge of the chamber, those bronze feathers catching the ambient glow of the dungeon walls, moving with a predator’s patience. It was waiting for him to overextend. It understood attrition.

He gave it what it wanted.

He accelerated — a direct line, no feinting, no angle adjustment, just a straight charge with a mana beam already forming between his hands. The bird read it as desperation. He could see the adjustment in how it set its wings, opening them to maximise its own speed for the counter.

At the last possible moment, he stopped.

Not decelerated. *Stopped.* Only Untethered made that physically possible — the removal of inertia from the equation, so that the velocity simply ceased to exist on his command. The bird had already committed to its intercept vector. It shot past him by four metres.

He turned.

Mana pulse. Not a volley. One. Poured full — everything he had left available in a single release, shaped tight and fired at the joint where the bird’s right wing met its body.

The sound it made when it connected was enormous. Not the sharp crack of a beam — a *concussive* report that rolled through the chamber and shook dust from the ceiling. The bird dropped from the air like something had cut a wire. It hit the chamber floor hard, skidded, and came to rest in a cloud of disturbed stone dust and scattered bronze feathers.

Rean descended slowly, Untethered fading, gravity reclaiming him by degrees.

The bird was still alive. He could see the rise and fall of its chest from here, laboured but present. One wing moved — the left. The right was folded at a wrong angle against the floor, the joint where he’d hit it swollen already, unable to fully extend.

It turned one amber eye toward him.

He met it.

"Ground rules," Rean said quietly, landing.