The leaning residential tower rose out of the ash like a wounded giant.

Yellow emergency lights flickered along its lower floors, blinking in uneven intervals that made the whole building seem alive. Half of the skybridge connected to its eastern side had collapsed, leaving twisted steel ribs hanging over the street. The upper floors had shifted several meters off-center, pressed against the neighboring tower as if the two buildings were the only reason either of them had not fallen completely.

Glen stopped at the edge of the road and stared up at it.

Somewhere inside that building, Mary had gone after trapped children.

That was what the one-armed man had told him. That was what the bandit called Brutus had confirmed. Mary had passed through the underground route alive. She had paid for passage with a hunter core, moved with a small group, and headed toward this tower.

Glen should have felt relief.

He did not.

Relief was for people who had answers. He only had a trail, and every step of that trail made less sense.

Mary Mcdonald was supposed to be recovering. Weak, maybe. Tired, definitely. But recovering. The doctors had discharged her months ago after claiming they had cleared the toxic mana from her lungs. They told him the worst was over. They told him she needed rest, clean air, proper food, and regular checkups. Glen had listened because he wanted to believe them. He had rented her an apartment in Sector Three because it was clean, secure, and close enough to the medical network for follow-up scans.

He had thought money could finally buy her distance from suffering.

Now he knew better.

The woman who had moved through Sector Three after the fall did not sound like a recovering patient. She had not panicked. She had not followed the first convoy like the other civilians. She had passed through hidden service tunnels, negotiated with armed survivors, protected children, and moved deeper into a collapsing sector with enough purpose that even violent men like Brutus remembered her.

That bothered him.

Not because she was alive.

Because she was competent.

Too competent.

Isla stepped up beside him, Frostbreaker dimmed but ready. "You are thinking too loudly again."

Glen did not look at her. "Something is wrong."

"Yes. The city is falling, monsters are multiplying, and we are standing under a building that looks like it is one bad sneeze away from becoming a tomb."

"That is not what I mean."

Caleb raised his scanner, watching the unstable readings crawl across the display. "There are movement signatures inside. Multiple floors. Some weak, some stronger. I cannot separate civilians from fiends clearly. The structure is interfering with the scan."

Glen looked at the tower entrance.

The front doors had been torn open, but not by fiends. The edges were cut too cleanly. Someone had severed the locking bars with precision, leaving the doors hanging loose from their hinges. Ash covered the lobby floor, but beneath it, Glen saw faint drag marks, footprints, and thin black lines burned into the tile.

He crouched.

The marks were deliberate.

Not random scratches. Not panic.

A pattern.

Three short cuts near the left wall. One longer cut beside a broken information desk. Another beneath a fallen ceiling panel.

Isla followed his gaze. "That does not look like monster damage."

"No," Glen said quietly.

Caleb leaned closer. "A trail?"

Glen reached toward one of the marks but stopped before touching it. The line was shallow, almost invisible beneath the ash, but it had been placed where ordinary survivors would never notice it. Not on the obvious path. Not at eye level. Hidden low, near corners, near cover, near places a trained scout would check while clearing a building.

His mother had never taught him signs like this.

So why did the marks feel familiar?

The dark fragment in his core pulsed once.

Glen’s eyes narrowed.

No. Not the rot. This was not anti-mana recognition. This was instinct. Something buried deeper than skill. Something his body understood before his mind could give it a name.

"She left these," he said.

Isla looked at him sharply. "Mary?"

Glen stood. "Yes."

Caleb frowned. "Why would your mother know how to leave covert path markers?"

Glen had no answer.

That irritated him.

He stepped into the lobby.

The air inside the tower was thick with dust, ash, and old blood. Emergency lights flashed along the ceiling. The reception area had been turned into a temporary shelter and then abandoned in a hurry. Blankets were scattered near the walls. Empty water bottles rolled across the floor. Someone had built a small cooking fire inside a metal bin, but it had long gone cold.

There were bodies near the elevators.

Three ash fiends, destroyed.

Not frozen by Isla. Not crushed by gravity. Not rotted by Glen.

Cut.

Each one had been killed with frightening efficiency. One had a thin puncture through the base of its skull. Another had both legs severed at the knee and its head split from behind. The third was pinned to the wall by a broken metal rod driven through its chest, angled upward through whatever passed for its core.

Glen stared at the corpses.

Ash fiends did not die easily unless you destroyed the body enough to stop it reforming. Whoever had done this had not used overwhelming power. They had used knowledge. The strikes were placed exactly where the creatures’ ash structure was weakest.

Caleb swallowed. "You said the doctors cleared the toxic mana from her lungs."

"They did," Glen said.

"Then how is she doing this?"

Glen’s grip tightened around his sword. "That is what I am trying to understand."

Isla crouched beside one of the bodies and examined the puncture wound. "No mana residue. No active skill trace. This was physical."

"A civilian did that?" Caleb asked.

Isla looked at Glen.

Glen said nothing.

They followed the marks.

The trail did not take the main staircase. It cut behind the reception desk, through a maintenance hallway, into a staff stairwell with no emergency lighting. A normal survivor would have avoided it. It was too narrow. Too dark. Too easy to get trapped inside.

Mary had chosen it anyway.

Smart.

The main stairs were obvious. Obvious paths got watched. Obvious paths got flooded by desperate people and hunted by monsters. The maintenance stairwell allowed smaller groups to move quietly between floors.

Glen climbed first.

At the second floor, they found more signs. A smear of blood on the railing. A child’s torn sleeve. Two more ash fiends dead in the hallway, one crushed beneath a vending machine that had been tipped over at exactly the right moment. Not strength. Timing.

At the third floor, they found a dead hunter.

He wore mismatched armor and carried a short spear. One of Brutus’s men, judging by the crude iron mark stamped onto his shoulder plate. His throat had been opened from behind. No wasted cuts. No struggle. He had died before he knew someone was there.

Isla looked at the corpse and gave a slow, appreciative breath. "That was clean."

Caleb stared at the dead hunter. "Mary did this?"

Glen walked past the body. "Someone did."

His voice was calm, but inside, something was shifting.

Mary had always been gentle with him. Not soft, exactly, but controlled. Patient. She had smiled when the hospital discharged her, telling him not to look so angry at the doctors because they had done their jobs. She had promised him she felt better. She had told him the toxic mana was gone, that her lungs were clear, that all she needed was time.

Glen had wanted to believe that.

So he had.

But now he was walking through a building where his recovering mother had apparently moved like a ghost and killed like a professional.

He did not know whether to be impressed or angry.

Both felt correct.

On the fifth floor, Caleb raised one hand.

"Wait."

Glen stopped immediately.

Caleb lifted his focus, purple light gathering in the floating prism. "There is pressure above us. Heavy movement. Not human."

A shriek echoed through the stairwell.

Then another.

Isla raised the Frostbreaker. "How many?"

Caleb’s eyes glowed faintly. "At least eight. Maybe more. Sixth floor. They are moving toward the east wing."

Glen looked at the wall.

East wing.

The direction of the children.

The direction of the trail.

He did not hesitate.

"Move."

They climbed fast.

When Glen kicked open the sixth-floor door, chaos slammed into him.

The hallway beyond was half-collapsed. Ash fiends crawled across the ceiling, walls, and floor, their red eyes glowing through the smoke. At the far end of the corridor, a group of children were huddled behind an overturned metal cabinet while two adults tried to hold the creatures back.

One was a nurse, blood running down the side of her face.

The other was Mary.

Glen froze.

Only for a fraction of a second.

But he froze.

Mary Mcdonald stood in the center of the corridor with a broken pipe in one hand and a kitchen knife in the other. Her blue coat was torn, her dark hair was loose around her face, and blood stained one sleeve. She looked tired. Pale. Like a woman who had spent the last few days running on stubbornness and willpower instead of sleep.

But she was not helpless.

An ash fiend lunged at her from the ceiling.

Mary did not stumble back. She stepped into its blind angle, drove the knife into the soft joint beneath its jaw, twisted, then slammed the pipe into the side of its skull. The creature dropped. Before it could reform, she kicked a spilled bottle of cleaning fluid across its body and struck a spark from a broken wire hanging near the wall.

Fire swallowed the fiend.

It screamed and collapsed into burning ash.

Glen stared.

For the first time in years, Mary looked like someone he did not know.

Then another fiend charged from the left.

Glen moved.

Thunder Phantom Step cracked through the corridor, and he appeared between Mary and the monster. His black longsword flashed once, cutting the creature from shoulder to hip. Before the body split apart, his left hand shot forward.

"Void Touch."

The rot erased the remains in a controlled pulse of dead gray energy.

The hallway went quiet for half a heartbeat.

Mary turned.

Her eyes met Glen’s.

Something passed through her face so quickly most people would have missed it. Relief. Fear. Love.

And then, beneath all of it, recognition.

Not of him.

Of the rot.

"Glen," she whispered.

His chest tightened.

He wanted to say something. Anything. He wanted to ask why she had left the shelter, how she had survived, why she had never told him she could fight like this, why every step he took closer to her made him feel like he was walking toward a locked door inside his own life.

Instead, another ash fiend shrieked.

The moment broke.

Glen turned cold again.

"Isla."

"Already on it."

A beam of absolute cold tore down the hallway, freezing three fiends mid-leap. Caleb slammed his focus into the floor, and the gravity in the corridor shifted violently. Two more creatures were pulled off the walls and crushed against the ceiling hard enough to crack the concrete.

Glen walked forward through the chaos.

Not rushed.

Not desperate.

Controlled.

One fiend crawled toward the children. Glen threw his sword. The blade spun once and pinned the creature through the skull. He crossed the distance, placed his left hand on the twitching body, and reduced it to dust before pulling the sword free.

Another came at him from behind.

Mary moved first.

She threw the broken pipe.

It struck the creature’s leg at the joint, throwing off its balance by half a step.

That half step was enough.

Glen turned and cut its head off.

For a moment, mother and son stood back to back in the ruined corridor, moving without speaking. Mary disrupted. Glen executed. Isla controlled distance. Caleb crushed anything that tried to swarm.

The last fiend tried to retreat into the ceiling.

Glen lifted his left hand.

The rot crawled up the wall in a thin line and touched its claw.

The creature stiffened.

Then it crumbled.

Silence returned slowly.

The children were crying behind the cabinet. The nurse collapsed against the wall, shaking so hard she could barely breathe. Isla checked the far hallway. Caleb kept his scanner raised, eyes moving over the readings.

Glen turned toward Mary.

For a moment, neither of them spoke.

Mary looked at the black sword in his hand. Then at the gray veins fading from his left wrist. Her expression tightened with something that was not surprise.

That bothered him more than anything else.

"You knew," Glen said.

Mary’s eyes lifted to his.

He stepped closer.

"You saw the rot and you knew what it was."

Mary was silent.

Glen’s voice dropped. "What are you?"

The words hit the corridor harder than any accusation.

Pain crossed her face, but she did not look away.

"Your mother," she said softly.

Glen’s jaw tightened. "That is not what I asked."

Isla turned slightly, her gaze sharpening. Caleb went still.

Mary looked at the children, then at the nurse, then back at Glen. Whatever answer she had was buried behind years of silence, and Glen could see the weight of it pressing against her throat.

Not now, her eyes seemed to say.

Glen hated that.

But he understood it.

The building was still unstable. More fiends could come. Survivors were bleeding. The sector was dying around them.

The truth could wait.

For a little while.

Glen stepped back and looked at the nurse. "Can they walk?"

The nurse nodded weakly. "Most of them."

"Good. Then they walk."

Mary’s eyes softened at the sound of his voice, but Glen did not return the look.

Not yet.

He turned toward the stairwell.

"We are leaving."

One of the children whimpered. "Where?"

Glen glanced back.

His expression was cold, almost cruel, but his voice stayed steady.

"Away from here."

The child nodded quickly.

Mary watched him for another second, and Glen felt the distance between them stretch and twist into something unfamiliar.

He had come to Sector Three to find his recovering mother.

Instead, he had found a woman standing in ash with a knife in her hand, killing monsters like she had remembered an old song.

And deep inside Glen’s core, the rot stirred again.

This time, it was not recognizing the city.

It was recognizing her.