Leo felt the drain before he saw the thing causing it.
It was subtle at first — a faint resistance at the edge of his mana reserves, like breathing against a slow wind. The Eclipse Domain was pouring energy into him at its usual rate, fifty thousand units per minute, but something ahead was putting a hand against that current and pushing back. Not hard enough to stop it. Hard enough to notice.
At eleven kilometers out, flying east at the top speed his wings could sustain, he saw what was doing it.
The Hollow King did not look like a monster.
That was the first thing that registered, and it was wrong enough to make him slow down involuntarily, wings angling back to bleed speed as his mind tried to reconcile what his eyes were reporting. He had been expecting something broken and vast, the shape of a catastrophe given form — the kind of creature that announced itself with geography, that bent the landscape around it the way a heavy object bends the surface it sits on.
Instead he saw a man.
Or the outline of one. Six feet tall, perhaps, walking across the ash-fields east of the city at a pace that was almost leisurely, in a straight line toward Aethelgard. Robed in something that was not cloth — it moved like cloth, dark and layered, but it absorbed the violet light of the Eclipse Domain rather than reflecting it, creating a silhouette so complete it looked less like a person and more like a man-shaped hole cut into the world.
The face, when Leo got close enough to see it, had been a face once. The architecture was still human — eyes, nose, jaw, the specific proportions that said: this used to be someone's son, someone's colleague, someone who had a name and used it every day. But the eyes were gone. Not closed, not damaged. Gone — replaced by the same absolute darkness as the robe, two apertures in a human mask through which nothing looked back.
Nothing, and then everything, as it registered Leo's approach and turned its head upward.
The drain tripled instantly.
[[Threshold 5 Entity: The Hollow King — ENGAGED]]
[[Level: Indeterminate — System cannot fully assess. Estimated equivalent: Level 52–58.]]
[[Mana Drain Aura: Active. Current drain rate: 180,000 mana/min.]]
[[Eclipse Domain regeneration: +50,000 mana/min.]]
[[Net mana loss: -130,000 mana/min. Current reserves: 94% and falling.]]
[[Warning: At current drain rate, reserve depletion in approximately 7 minutes.]]
Seven minutes.
Leo did the arithmetic without breaking his descent. Seven minutes if he stayed at this distance. Closer, the drain would accelerate. Farther, it would ease but he would lose the ability to engage. The Eclipse Domain's regeneration was significant — it had never failed to keep him supplied in any fight before this one — but the Hollow King was pulling mana out of him three and a half times faster than the Domain was putting it back.
This was not a fight he could win by outlasting it.
He pulled up forty meters above the ash-fields and hovered, wings working steadily against the drain-wind, and thought for exactly four seconds.
Then he reached for the Bond Sense.
"Varek."
The dragon was already there — not physically, not yet, but present in the Bond the way a weapon is present when your hand closes around the grip. Leo could feel Varek's attention, the particular quality of a construct that had been built from military hardware and understood, in whatever passed for its bones, what it was for.
"The aura drains mana," Leo said through the Bond. "You don't run on mana. You run on the converted God-Slayer cores."
A pulse of acknowledgment through the Bond. Correct.
"Which means you can get close."
Another pulse. Understanding, and beneath it, the particular eagerness of something that has been waiting for a reason to move at full speed.
"Come in from the north. Low. Don't give it a clean look at you until you're inside ten meters."
The Hollow King watched Leo hover above it with those lightless apertures where eyes should have been, and then it did something that Leo had not read about in any of Seraphina's compiled records.
It spoke.
The voice arrived not through the air but through the mana itself — conducted along the drain current like a signal through a wire, arriving inside Leo's chest rather than at his ears. It was not loud. It was not threatening in its tone. It was the voice of something that had been alone for two hundred years and had, somewhere in that time, forgotten what speech was for except as a mechanism for transmitting want.
"More," it said. "You have more."
"Yes," Leo said aloud. He kept his voice level. "I do."
"Give it."
"No."
The drain surged. Not tripled — quadrupled, a sudden violent pull that felt like the ground dropping out from beneath his reserves. Leo's mana percentage dropped three points in a single second, the Eclipse Domain straining to compensate and falling short, and for a moment the violet fire on his wings guttered and dimmed.
[[Mana Drain Aura: INTENSIFIED. Current drain rate: 340,000 mana/min.]]
[[Net mana loss: -290,000 mana/min. Current reserves: 87% and falling rapidly.]]
[[Estimated reserve depletion: 3 minutes 12 seconds.]]
[[Leo — the Domain alone is insufficient. Adapt or withdraw.]]
Withdraw was not a word Leo's vocabulary had much use for.
He dropped from his hover — not retreating, falling forward, controlled and deliberate, angling into a dive toward the Hollow King with Soul Devourer charging in his right hand. The skill crackled with a dark, hungry energy, Rank 3 and overclocked from the Solar Well fight, and Leo aimed it not at the entity's body but at the drain current itself — trying to grab the mana stream being pulled out of him and reverse its direction, feed it back into his own reserves faster than it was being taken.
The Hollow King raised one hand.
It did not block the skill. It absorbed it. Soul Devourer — a skill that had ripped the essence from an S-Rank mage in three seconds, that had converted the Solar Well, that had overclocked against a divine Saintess — hit the Hollow King's palm and disappeared into it the way a stone disappears into deep water. Gone. Not deflected, not resisted. Consumed.
Leo pulled up hard, wings snapping wide, and the shock of what had just happened ran cold through his tactical thinking. The entity was not just draining ambient mana. It was eating his active skills on contact. Direct assault was not an option.
Then Varek hit it from the north.
The dragon came in low over the ash-fields at full acceleration, twelve meters of obsidian-scaled construct running on converted military cores that had nothing to do with mana and therefore nothing for the drain aura to grip. Varek's shoulder connected with the Hollow King's torso at approximately two hundred kilometers per hour, and the impact was not a sound so much as a pressure wave — a concussive thud that flattened the ash around them in a perfect circle and sent the Hollow King sliding forty meters across the ground before it found traction and stopped.
The drain aura stuttered.
It was brief — less than a second, a hiccup in the current as the entity processed what had just struck it — but Leo felt it like a breath of clean air.
[[Varek — Void Fire: Charging.]]
[[Note: Physical impact temporarily disrupts the Hollow King's drain concentration.]]
[[Window of reduced drain: 0.8 seconds per impact. Use it.]]
There it was.
Not a way to destroy it — not yet, not at Level 40 against something that ate S-Rank skills for breakfast. But a rhythm. Varek hits, drain stutters, Leo acts in the window. Hit, stutter, act. Hit, stutter, act. It was not elegant. It was the fighting style of someone who had identified the only gap available and was going to exploit it until something changed or he found a better option.
Leo's wings folded and he dropped into the gap like a stone.
Void Flicker — not toward the Hollow King, but around it, appearing at its flank in the half-second Varek's impact had bought, and driving his obsidian blade into the dark fabric of its robes. The blade did not consume or drain. It was physical, dense with his own mana signature, and it hit something beneath the robes that was harder than it looked — not flesh, not bone, but something solid and cold that rang against the blade like striking iron.
The Hollow King turned its faceless head toward him.
"More," it said again. Same flat tone. Same absence of anything resembling feeling. But there was something new in it now — not pain, the entity clearly did not process pain, but awareness. It had catalogued him. It knew what he was and what he had, and the drain aura re-engaged at full strength, focused now, a targeted beam rather than a general field, pulling at Leo specifically with a precision that felt disturbingly like intelligence.
His reserves hit 71%.
Varek hit the Hollow King again from the opposite side — the dragon had circled wide and come back in at ground level, impact point the entity's left flank this time. Another stutter. Another window. Leo Void Flickered clear, landed twenty meters back, and checked his own condition.
Seventy-one percent and the Eclipse Domain was rebuilding. The rhythm was working — each exchange cost him mana, but less than simply hovering in the drain field had. He was bleeding reserves slowly now rather than catastrophically. He could sustain this for perhaps fifteen minutes.
He needed to end this in fewer.
"Seraphina," he said through the Soul Link, breathing hard. "I need the Ecstasy-Boost. Not to fight it directly — to overclock the Eclipse Domain. I need the regeneration rate doubled."
A pause. When Seraphina responded, her voice carried the particular quality of someone doing something that costs them while choosing not to say so. "It will hurt, Leo. The Domain is city-wide. Doubling the output through the Soul Link at this range is not — it's not a comfortable process."
"I know," Leo said. "Do it anyway."
Another pause. Shorter.
"Always," Seraphina said.
The surge arrived like a second heartbeat slamming into sync with the first — a wave of raw, Seraphina-channeled mana that hit Leo's reserves and immediately began to cascade outward through the Eclipse Domain, doubling the conversion rate, the violet light above Aethelgard flaring so bright that citizens thirty kilometers away would later describe it as the moment the city's new sky caught fire.
[[Ecstasy-Boost: Active — Domain Overclock Mode.]]
[[Eclipse Domain regeneration: +50,000 → +104,000 mana/min.]]
[[Hollow King drain rate: 340,000 mana/min.]]
[[Net mana loss: -236,000 mana/min — significantly reduced.]]
[[Estimated sustainable engagement time: extended to 22 minutes.]]
[[New option available: Soul Devourer — Domain Channel. Requires 8 seconds of uninterrupted contact with target.]]
There it was. The real option.
Soul Devourer had failed on direct contact because the Hollow King absorbed active skills. But a Domain Channel was different — it was not a skill cast at the entity, it was the Eclipse Domain itself, the ambient mana of the entire city, flowing through Leo as a conductor and into the Hollow King as a reversal of the drain. Not Leo's mana. The city's mana. Turning the Hollow King's own mechanic against it — instead of it draining the city through Leo, the city draining it through Leo.
Eight seconds of uninterrupted contact.
Against something that had just demonstrated it could eat his skills and intensify its drain at will, eight uninterrupted seconds was a very long time.
Leo looked at Varek.
The dragon looked back with those cold, constructed eyes, engine cores humming.
"I need eight seconds," Leo said aloud. "Keep it occupied. Don't let it focus on me."
Varek's chest vents opened, the Void Fire that had been charging for the past two minutes finally cycling to full output, and the dragon turned toward the Hollow King with the absolute, uncomplicated purpose of something that had been built from weapons and knew exactly what it was.
Leo rolled his shoulders, felt the Ecstasy-Boost humming through every nerve, and began to count.
Eight seconds.
He had survived worse odds than this with less on the line.
He moved.