By morning, the mountain belonged to the dead.
Five dragons lay where they had fallen.
Some rested against the broken slopes below Mahi Esri. Others had struck the fortress itself before sliding into shattered stone. Scorched walls marked the places where red fire had passed. Ice remained in sheltered cracks despite the growing daylight. Acid had eaten pale channels through masonry. The remains of the creatures that had climbed, flown, crawled and poured themselves toward the tower were scattered across every approach.
The shadow was gone.
That was the strangest thing.
For weeks the heroes had followed it through country that no longer remembered what it had once been. Plains became swamp. Trees died or awakened. Monsters appeared without lineage, reason or relationship. Hell pushed through the earth. Then the darkness reached Mahi Esri and threw everything it possessed against one ancient structure.
Now sunlight touched the mountains again.
Nothing about the ruined fortress looked repaired by it.
Kaylor stood near the edge of the summit and watched soldiers recover their dead.
Nobody cheered.
Victory had come too late for too many people.
Behind him, the outer keep had been broken open by the night’s assault. The living wave had torn whole sections from the four-hundred-foot structure the Gildan had built around the thing they had guarded for generations. What remained of the later masonry looked almost crude beside what had been exposed beneath it.
The inner tower caught the morning in muted gold.
Oslan.
Or something so close to Oslan that the distinction no longer mattered.
The heroes had seen the same impossible precision beneath the mountains. Seamless surfaces. Construction that seemed less built than decided. A civilization that had once understood magic before the world’s current rules hardened around it.
Fendor approached slowly.
He had survived five dragons.
He looked as though five dragons had noticed.
“You’re staring at it.”
“Yes.”
“That usually means we’re going inside.”
“Yes.”
Fendor stopped beside him.
“I preferred when you stared at taverns.”
Kaylor looked toward the ancient tower.
“That was a long time ago.”
Fendor considered.
“Yesterday?”
“Feels longer.”
Behind them, Hexen had not yet entirely decided what shape he wished to occupy.
The druid’s transformations had become increasingly ambitious as their enemies had become increasingly unreasonable. Mammoth. Elemental. Planetar. Pit fiend. At some point the question had stopped being whether Hexen could become something and become whether the resulting creature fit inside the place they needed to stand.
Nethnarel sat against a broken wall while magical healing finished repairing what the previous night had done to her.
There had been confusion in the final hours of the battle about who had actually crossed the line between dying and dead. That was not unusual anymore. Hexen possessed resurrection magic. Planetar forms possessed their own restorative power. Kaylor could drag someone back from the edge with his hands.
Death had become negotiable.
Not harmless.
Never harmless.
Grazim had taught them that distinction.
But negotiable.
By the time the sun had properly risen, the four who remained at Mahi Esri were alive.
Isamu was still absent.
The empty place where the monk should have stood had followed them through the previous battles and now followed them toward the final tower.
Kaylor did not like it.
He had learned long ago that the world did not wait for everyone to be ready.
Hexen returned to his own form long enough to sit among them.
They rested.
Really rested.
Not the hour stolen in a dungeon corridor.
Not the few minutes after a resurrection while something worse moved in the next room.
The shadow would not return until night, if it returned at all. For the first time since the siege began, Gildan’s exhausted defenders could breathe without something immediately climbing the walls.
Hexen prepared another feast.
Fendor looked at the supernatural meal.
“I have reconsidered my position.”
Hexen glanced at him.
“On?”
“Breakfast.”
“That took a while.”
“It has repeatedly prevented poison, terror and several forms of death.”
“Yes.”
“I respect breakfast.”
Nethnarel smiled.
They ate.
Later, messages were sent to allies who could help the surviving Gildan rebuild. There would be time for stone, burial, repair and explanation.
Not yet.
The tower waited.
During the daylight it possessed no entrance.
That was the first problem.
Kaylor walked around the exposed structure twice before accepting that there was simply no door.
No break.
No seam large enough to be used.
The ancient walls rose from the broken fortress as though whoever constructed them had never considered that anyone outside might need permission to enter.
Nethnarel examined them with growing interest.
“That is impossible.”
Fendor stood behind her.
“I have learned that when you say that, you mean you like it.”
“I mean it is impossible.”
“Your tone says otherwise.”
The tiefling ignored him.
She took out the Portable Hole.
Fendor immediately shook his head.
“No.”
“It works through solid surfaces.”
“It works when the universe is behaving.”
“The universe is currently behaving.”
Kaylor looked around at five dead dragons, a fortress half destroyed by living water and an ancient magical tower that had no door in daylight.
“Debatable.”
Nethnarel unfolded the black cloth.
She pressed it against the ancient wall.
The darkness opened.
Then stopped.
Normally the hole unfolded into an impossible extradimensional space. Here, the black surface remained exactly what it looked like.
Black.
Flat.
Closed.
No depth.
No passage.
Nothing.
Nethnarel leaned closer.
The tower refused her magic.
Again.
She slowly pulled the cloth free.
Fendor looked pleased.
“You begged for that thing.”
“I know.”
“For a very long time.”
“I know.”
“And the ancient civilization keeps making it useless.”
Nethnarel folded it.
“I know.”
Hexen looked toward the sky.
“Maybe it isn’t time.”
Kaylor turned.
The sun had begun descending.
They waited.
Dusk came across Mahi Esri slowly.
And the wall changed.
At first Kaylor thought it was light moving over the metal-gold surface.
Then the air bent.
Two vertical lines appeared where none had existed.
The tower seemed to shift half a step sideways without moving.
The lines widened.
Depth appeared.
Huge double doors emerged from the wall as though they had always been there but had spent the day standing somewhere adjacent to reality.
Fendor stopped smiling.
“That is worse.”
Nethnarel approached.
The doors towered above her.
Their surface carried symbols that shimmered with pale ethereal light, lines and geometric forms worked into patterns older than every kingdom now standing.
She recognized pieces.
Not enough to read fluently.
Enough to understand.
The Oslan language had resisted her before. She had learned fragments from the buried cities, inscriptions and surviving magic. Here those fragments formed part of a larger text spiraling across both doors.
“What does it say?” Kaylor asked.
Nethnarel studied it.
“A story.”
Fendor groaned.
“A short story?”
“No.”
“Of course.”
Much of it remained beyond her.
But one idea repeated clearly.
The Ageless Tower.
That was what the Oslan had called this place.
Not the fortress.
Not Mahi Esri.
The structure inside it.
Nethnarel traced one glowing line without touching the surface.
“Ageless Tower.”
Kaylor looked upward.
Four hundred feet of ancient magic rose into the gathering dark.
“Appropriate.”
Nethnarel continued reading.
Something changed in the air.
A faint blue light appeared between the heroes and the doors.
It gathered itself into the shape of a man.
Tall.
Human enough to make the differences unsettling rather than comforting.
His clothing belonged to no surviving kingdom. His features were familiar only because the Oslan themselves had once been mortal people before their empire vanished from the world.
The spectral sage looked at them.
His sorrow arrived before his words.
It entered their minds like the memory of someone else’s funeral.
“Brave souls.”
Fendor lowered the Oathbow.
Kaylor did not lower anything.
The sage looked toward the tower.
“You stand upon hallowed ground.”
The blue light around him trembled.
“This tower holds secrets from an ancient past. Secrets that should have remained undisturbed.”
Nethnarel stepped closer.
The spirit saw her.
Perhaps it saw the hunger immediately.
The same hunger that had driven Nethnarel into old libraries looking for the magic that existed before Mystra’s laws. The same hunger that carried them to Oslan.
The sage continued.
His people had once been guardians of the arcane.
Masters of the elements.
Seekers of wisdom.
They had possessed knowledge that modern spellcasters would have called impossible because the word impossible often meant nothing more than forgotten.
Then knowledge became hunger.
Hunger became arrogance.
And arrogance became ruin.
“We sought powers not meant for mortal hands.”
Nethnarel’s expression changed.
Not defensiveness.
Recognition.
The spirit spoke of the goddess of magic.
The Oslan had drawn her attention.
Their pursuit of forbidden power had become dangerous enough that Mystra answered.
She sent a destroyer.
A dragon.
The sage spoke its ancient name.
Thorax.
Or something close enough that the old language made certainty impossible.
Kaylor’s grip tightened around the Hammer of Thunderbolts.
The spirit described an eternal dragon.
A creature embodying the elements.
A servant sent to end the Oslan’s forbidden pursuit.
Its wrath devastated their realm.
The Oslan fought.
They failed.
The Ageless Tower became both sanctuary and prison.
A few escaped.
The rest vanished with their empire.
Nethnarel thought of the impossible city they had seen beyond the functioning gate beneath Oslan.
Perhaps vanished was not the right word.
Perhaps escaped was.
The spectral sage looked directly at Kaylor.
“You released what we could not destroy.”
Kaylor said nothing.
The dragon beneath Oslan.
Zidara.
The name they had used.
The dragon that had disappeared after they freed it.
The dragon whose body had begun growing flesh over bone.
The dragon Marcus’s father may have seen passing overhead before the rot began.
Now this dead Oslan sage used another name and spoke as though the thing waiting behind all of this belonged to the catastrophe that ended his people.
Kaylor wanted to ask which name was true.
There were more urgent questions.
“What is it?”
The sage’s eyes dimmed.
“Not merely fire.”
A pause.
“Not merely ice.”
Images moved through the blue light surrounding him.
Flame.
Water.
Stone.
Wind.
And something between them that did not behave like an element at all.
Chaos.
“He embodies them together.”
Nethnarel stared.
The sage called the creature a force beyond mortal comprehension.
He warned them that its malevolence knew no restraint.
That it sought to release chaos upon the realm.
That confronting it meant facing something worse than death.
Fendor looked at the others.
“I think he’s making a compelling argument for going home.”
Hexen smiled faintly.
Kaylor stepped toward the spirit.
“No.”
Fendor sighed.
“I knew you were going to say that.”
Kaylor faced the dead sage.
“We didn’t come here for the magic.”
Nethnarel glanced at him.
Kaylor noticed.
“Primarily.”
“That is an important distinction.”
“We came because whatever is happening out there is killing people.”
The sage regarded him.
Kaylor continued.
“We opened something we may not have understood. If this is part of that, we finish it.”
There had been a time Kaylor would have made the statement in the language of righteousness.
Duty.
Faith.
The will of a god.
He had learned caution with all three.
He no longer trusted holiness because something called itself holy.
He trusted consequences.
The Oslan had made a choice.
So had the heroes.
People were dying downstream from those choices.
That was enough.
“Open the doors.”
Fendor looked at Nethnarel.
“Very holy.”
Kaylor ignored him.
The spirit’s expression did not change.
“If you proceed, then carry this plea.”
The blue light intensified.
“Learn from us.”
That silenced Nethnarel more effectively than any accusation could have.
“Do not become consumed by forbidden power.”
The spectral sage looked from hero to hero.
“Preserve balance. Preserve the elements. Seek harmony where we sought mastery.”
Hexen listened carefully.
Balance was a language druids understood.
Not innocence.
Not abstinence.
Balance.
Power existed.
The question was what happened when someone decided all of it belonged to them.
Nethnarel folded her arms.
The spirit gave one final warning.
“To seal Thorax will demand strength of heart and unity.”
Then something important enough that all four listened without humor.
“The runes upon the platform of sealing shall be your key.”
Kaylor repeated it.
“The runes.”
“Yes.”
“Platform of sealing.”
The sage nodded.
Fendor looked at Nethnarel.
“You’re writing that down.”
“I remember things.”
“Write it down anyway.”
The ghost faded.
For several moments the heroes stood before the doors.
Nethnarel looked at Kaylor.
“He specifically warned us not to take forbidden magic.”
“Yes.”
“You understand that.”
“Yes.”
“And if we find something interesting?”
Kaylor looked at her.
“We’ll discuss it.”
Fendor laughed.
“Excellent. We’re doomed.”
Kaylor walked to the doors.
Before he reached them, the air shimmered on either side.
Two figures appeared.
Huge.
Metallic.
Humanoid only in the broadest sense.
They materialized with the slow inevitability of machinery awakening after waiting thousands of years.
Fendor drew the Vorpal Longsword.
“Those were not there before.”
“No.”
“Are they friendly?”
Kaylor looked at the constructs.
“They’re between me and the door.”
“That is not an answer.”
It became one.
Both guardians turned toward the heroes.
Hexen had already changed into an Earth Elemental.
The stone body shifted beside Kaylor as the druid examined one of the constructs.
Something flashed across its metal skin.
A symbol.
A blue ring.
Inside it, red lines moved like living waves.
Then the mark disappeared.
Hexen pointed.
“Did you see that?”
Nethnarel had.
“Blue outside. Red within.”
Fendor adjusted his grip.
“Meaning?”
“No idea.”
“Excellent.”
Kaylor walked to the nearest guardian.
The Hammer of Thunderbolts came into his hands.
“You should have let us in.”
He struck.
Metal rang across the ruined fortress.
The first blow dented armor.
The second hit hard enough to make the construct stagger.
Fendor moved toward the other.
The Vorpal Longsword cut into its plated body with a shriek of metal on enchanted steel.
For an instant Fendor expected the familiar impossible separation.
Head from neck.
That did not happen.
The blade went deep anyway.
Something came out of the wound.
Not blood.
A smell.
Rot.
Decay.
The cold odor of opened graves.
Fendor recoiled.
“I dislike this one.”
The guardian raised both hands together.
Then brought them down.
The blow struck Fendor like a collapsing wall.
He kept his feet.
Barely.
The construct reached for him.
Fendor twisted away as its arms tried to drag him against its chest.
The breastplate opened.
There was no machinery behind it.
Not entirely.
Darkness spilled outward.
Necrotic corruption.
Death without a body.
Fendor tore himself backward before the thing could pull him into it.
The breastplate closed.
He stared.
“That is deeply unnecessary.”
The second guardian attacked Kaylor.
Its joined fists struck hard enough to drive the dragonborn several feet across the stone.
Then its chest opened too.
Kaylor felt death reach for him.
He pushed away.
The Hammer of Thunderbolts had made his strength ridiculous.
For once, ridiculous was barely enough.
Nethnarel’s wings burst from her back.
She rose above Kaylor’s guardian.
Magic gathered around one hand.
She focused everything on its head.
The spell struck.
The upper armor began dissolving.
Metal peeled away.
The construction beneath it was worse.
Gears.
Articulated pieces.
Something pale at the center that looked disturbingly organic.
A machine built around the suggestion of a brain.
Fendor saw it.
“I preferred when it had a helmet.”
Hexen attacked from the other side.
Fire struck the guardian.
Some of the armor softened.
Not enough.
Nethnarel tried another answer.
Transformation magic wrapped around the second construct.
She attempted to reduce the ancient guardian to something harmless.
A toy.
A clockwork doll.
The guardian rejected the spell.
Nethnarel frowned.
“I dislike them too.”
Small flaming meteors began circling her.
She sent them down.
They struck armor.
And bounced.
Fendor glanced upward.
“Helpful.”
“I am learning.”
“Learn faster.”
The guardian hit him again.
The battle became a contest against things built by a civilization whose dead had just warned them about possessing too much power.
Kaylor found the irony irritating.
The constructs did not move like ordinary golems.
They reacted.
Adapted.
Different sigils flickered across their bodies as they fought.
Hexen saw another.
Pale blue.
Almost white.
No red lines.
Then Fendor’s blade opened the construct.
Cold exploded outward.
Frost blasted across the battlefield.
Ice formed instantly on armor and stone.
Kaylor turned into the wave and felt it break against protections he had accumulated over a lifetime of fighting things that wanted him dead.
Fendor staggered.
Hexen’s Earth Elemental body frosted white and kept moving.
Nethnarel climbed above the worst of it.
“Light blue,” Hexen called.
Fendor shook ice from his hair.
“You’re cataloging them?”
“Yes.”
“Good.”
The other guardian caught Kaylor.
This time it pulled him close enough for the breastplate to open fully.
Necrotic force poured across his armor.
He felt vitality being dragged from him.
Not pain exactly.
Absence.
Hexen saw the symbol flash again.
Blue circle.
Red waves.
“Death,” he said.
Kaylor forced himself backward.
The guardian’s hands tightened.
Kaylor had had enough.
The Hammer of Thunderbolts rose.
The first strike broke one side of its chest.
The second shattered the exposed internal mechanism Nethnarel’s magic had revealed.
Gears screamed.
The ancient guardian remained upright.
Kaylor struck again.
The construct’s eyes went dark.
It fell.
Death erupted from the corpse.
A swirling cloud poured outward where the machine collapsed.
Kaylor backed away before it could envelop him.
“One.”
Fendor heard him.
“Are we counting guardians now?”
“Yes.”
“That came from Hexen.”
“Probably.”
The surviving guardian turned toward Fendor.
The elf met it.
His sword carved deep.
Again.
Again.
Again.
No miraculous severing.
No need.
Every strike removed pieces of something that had spent millennia waiting to stop people exactly like them.
The construct slammed him.
Tried to pull him inward.
The death behind its breastplate reached out.
Fendor resisted.
Barely.
Hexen attempted to seize it with the earth itself.
Stone gathered beside the guardian and rose into the shape of a massive hand.
The construct moved at exactly the wrong moment.
The earthen grasp closed beside it.
Hexen stared.
Fendor looked over.
“Excellent.”
“Busy.”
Nethnarel hovered above both.
The flaming meteors had proven unreliable.
Her stronger spells had been resisted.
She considered the remaining guardian.
Then chose magic whose principal virtue was refusing to miss.
Bolts of force appeared.
They curved through the chamber entrance.
Around Fendor.
Around Hexen.
Into the construct.
One.
Another.
Another.
The guardian staggered.
More followed.
The ancient metal body shook beneath repeated impacts.
Then stopped.
The second guardian collapsed.
Cold and death spilled around it as the sigil on its body flickered one final time.
The heroes moved away.
Silence returned.
Then something deep inside the tower clicked.
Not a small mechanism.
A lock the size of architecture.
The sound traveled through the ground beneath their feet.
The double doors changed.
For the first time, they were no longer sealed.
Kaylor approached immediately.
Fendor wiped the Vorpal blade.
“Wait.”
Kaylor put one hand on the door.
Fendor pointed at the two dead guardians.
“We have just been punished twice for approaching doors.”
“Yes.”
“You have learned nothing.”
Kaylor looked at him.
“I learned they’re dead.”
Nethnarel stepped forward.
“No.”
Kaylor paused.
“Why?”
“Because this is my door.”
Fendor looked between them.
“I support whichever one of you is farther away when it explodes.”
Nethnarel lifted one hand.
Mage Hand formed.
Not the ordinary weak invisible servant taught to apprentice spellcasters.
Her telekinetic control gave it greater strength.
She reached toward the ancient doors from a distance.
Pulled.
For a moment nothing happened.
Then the Ageless Tower opened.
Blue light spilled across them.
The doors swung inward.
The heroes stepped through.
And stopped.
The chamber beyond was impossible.
A gentle bluish glow lived in the air itself.
The walls were covered in ancient runes and carvings, their lines shifting softly with their own light. The floor beneath the heroes was polished so perfectly that every step appeared to land upon a reflection of the world rather than stone.
Above them, the chamber rose until darkness swallowed the height.
Murals surrounded them.
Fire.
Water.
Earth.
Air.
And a fifth force wound among all four.
Chaos.
The carvings did not present the elements as separate things.
They intertwined.
Competed.
Balanced one another.
At the far side of the chamber a vast mural dominated the wall.
A dragon.
Not red.
Not blue.
Not green, white or black.
Its body appeared composed from all the elements at once.
Flame along one wing.
Water along another.
Stone through portions of its flesh.
Storm around its head.
Chaos everywhere between them.
Nethnarel stepped closer.
The floor felt wrong.
Solid.
And somehow unstable.
As though the surface existed only because the tower had decided, for the moment, that it should.
Kaylor looked at the dragon carved into the wall.
Then something moved in the center of the room.
A figure floated above the mirrored floor.
Almost translucent.
Tendrils of elemental power descended from its body.
Fire became water.
Water became wind.
Wind became darkness.
Stone formed and broke apart around it.
Chaos occupied whatever remained.
The heroes had not yet reached the dragon.
Something else guarded the way.
Fendor drew his sword again.
“We’re inside.”
Kaylor raised the Hammer of Thunderbolts.
“Yes.”
The Chaos Guardian opened its eyes.
And the Ageless Tower began its first test.