The heartbeat came from beneath the city.
Boom.
The sound rolled through the streets of Valenne like thunder trapped beneath the earth.
Boom.
The windows of every building shattered at once.
Glass rained down.
Seraphine instinctively raised her arms.
Ayan grabbed her and pulled her backward.
"Stay behind me."
Seraphine didn't argue.
The woman standing across the street smiled.
She looked exactly like Elena.
The same face.
The same silver-white hair.
The same silver lily.
But Ayan could feel the difference.
The Bridge was screaming.
This wasn't Elena.
At least, not the Elena they knew.
It was something wearing her shape.
The woman tilted her head.
"You don't trust me."
Ayan kept his weapon raised.
"No."
"Why?"
"Because you're not her."
The woman's smile faded.
Seraphine stared at her.
"Who are you?"
The woman looked at her with something resembling sadness.
"I am Elena."
"No."
Seraphine shook her head.
"My mother is dead."
The woman smiled.
"Your mother?"
She stepped forward.
"Then what does that make me?"
Seraphine didn't answer.
The woman continued.
"I am what Elena became in this world."
Ayan's eyes narrowed.
"What happened here?"
The woman looked around the ruined city.
"We lost."
"To the First Heart?"
"To ourselves."
The woman turned toward the center of Valenne.
"Come."
Ayan didn't move.
She looked back.
"If I wanted you dead, you would already be dead."
Ayan remained silent.
"Besides..."
Her eyes shifted toward Seraphine.
"...I have no desire to kill my daughter."
Seraphine stepped forward.
"Ayan."
He looked at her.
"I need to know."
Ayan sighed.
"Stay beside me."
They followed the woman.
---
The deeper they went into the city, the stranger it became.
There were no bodies.
No signs of battle.
Only ash.
Everywhere.
The streets were covered in a thin layer of gray dust.
Seraphine looked at the houses.
"Where are the people?"
The woman didn't answer.
Ayan asked again.
"Where are they?"
"Inside."
Seraphine frowned.
"Inside what?"
The woman stopped.
She pointed toward the sky.
Seraphine looked up.
The black sky moved.
Not clouds.
Something else.
A massive network of black roots covered the upper atmosphere.
They stretched across the entire world like veins.
Ayan's expression changed.
"The First Heart."
The woman nodded.
"It won."
"How?"
"It connected to everything."
"The land."
"The oceans."
"The animals."
"The people."
She looked toward the sky.
"The world became its vessel."
Seraphine's face went pale.
"Everyone?"
"Everyone."
Mira looked around.
"Then why are there no people?"
The woman answered quietly.
"Because there is no one left to control."
Silence.
"They were consumed."
Doctor Rowan's face tightened.
"Consumed?"
"Their memories."
"Their emotions."
"Their identities."
"Everything."
The woman looked toward Seraphine.
"The First Heart learned that controlling bodies was inefficient."
"So it began consuming minds."
Seraphine clenched her fists.
"And you?"
"I resisted."
"How?"
The woman touched the silver lily in her hair.
"Your mother found a way to separate consciousness from the Heart."
Ayan looked at her.
"Elena."
"Yes."
"But she failed?"
"She succeeded."
The woman smiled sadly.
"Just not in time."
---
They reached the center of the city.
The statue of Elena stood there.
But now Ayan could see what lay beneath it.
A massive staircase descended underground.
The woman opened the gate.
"Below is where it began."
Ayan looked down.
"Another First Heart?"
"No."
She looked at him.
"The original."
Ayan's expression changed.
"What?"
"The Heart you fought in your world is not the First Heart."
Seraphine stepped forward.
"Then what is it?"
"A fragment."
The woman pointed downward.
"Everything you've encountered is a fragment."
"The creature beneath Valenne."
"The plague."
"The Memory Blooms."
"The black heart."
"All fragments."
Ayan's mind raced.
"Then where is the original?"
The woman smiled.
"You're standing above it."
The ground beneath them pulsed.
Boom.
The staircase trembled.
Seraphine touched her chest.
"It can feel me."
"Yes."
"Why?"
The woman looked at her.
"Because you are the only vessel that survived across worlds."
Ayan's eyes narrowed.
"Across worlds?"
The woman nodded.
"There were others."
"Other Seraphines?"
"Yes."
"How many?"
"Thousands."
Seraphine froze.
"Thousands?"
"Every world where the First Heart awakened created a vessel."
"What happened to them?"
The woman looked away.
"They died."
Seraphine's expression hardened.
"All of them?"
"All but one."
She looked at Seraphine.
"You."
Ayan immediately understood.
The Bridge.
The reason the Seventh Door had opened.
The reason the First Heart recognized Seraphine.
She wasn't simply a compatible vessel.
She was an anomaly.
A person who had survived a process that killed every other version of her.
But why?
The woman answered before he asked.
"Because Elena changed the design."
Seraphine's eyes widened.
"My mother?"
"Your mother discovered something."
"What?"
"The First Heart does not create vessels."
"It recognizes them."
Ayan frowned.
"Meaning?"
The woman looked directly at him.
"The vessel already exists."
She pointed toward Seraphine.
"The Heart simply finds the one capable of carrying it."
Ayan stared.
"Then Seraphine was always compatible?"
"Yes."
"From birth?"
"From before birth."
Seraphine touched her chest.
"What does that mean?"
The woman didn't answer.
Instead, she looked toward Ayan.
"Ask the Key."
Ayan frowned.
"What?"
"You know the answer."
"No."
"You've seen it."
Ayan's head began hurting.
Memories flashed.
A dark room.
A child.
A door.
The Bridge.
A voice.
Something reaching through the darkness.
**Come home.**
Ayan staggered.
Seraphine caught him.
"Ayan!"
He breathed heavily.
"I remember."
"What?"
"Before I came here."
The woman smiled.
"Yes."
Ayan looked at her.
"I knew the First Heart."
"You did."
"I was connected to it."
"Yes."
"Why?"
The woman stepped closer.
"Because you were the first Key."
Ayan's blood ran cold.
"What does that mean?"
"The First Keepers created the Key."
"For what?"
"To separate the Heart from the worlds."
Ayan stared.
"Then why don't I remember?"
"Because your memories were removed."
"By whom?"
The woman smiled.
"Elena."
Seraphine froze.
"My mother?"
"Yes."
Ayan's expression darkened.
"Why?"
"Because she knew you would eventually return."
"Return from where?"
The woman pointed toward the sky.
"From the place between worlds."
Ayan stared at her.
The Bridge suddenly flared.
The silver notebook appeared.
Its pages turned rapidly.
Then stopped.
**MEMORY RECOVERY: 3%.**
Ayan froze.
He had never seen that message before.
Another line appeared.
**ORIGINAL IDENTITY: SEALED.**
Then another.
**KEY STATUS: INCOMPLETE.**
Ayan's hands trembled.
Seraphine looked at the notebook.
"What does it mean?"
Ayan didn't answer.
The woman smiled.
"Now you understand."
"Understand what?"
"Why the door opened."
Ayan looked toward her.
She pointed toward the black sky.
"The worlds are collapsing."
"The First Heart is consuming them."
"And your world is next."
Seraphine's expression hardened.
"Then we'll stop it."
The woman looked at her.
"You cannot."
"Why?"
"Because your First Heart has already awakened."
Ayan's face changed.
"What?"
The woman nodded.
"The one beneath your mountain."
"We contained it."
"You contained a fragment."
"Then what's the problem?"
The woman looked toward the sky.
"Containment is not destruction."
"The fragments remain connected."
Ayan suddenly understood.
The connection he had rewritten beneath the mountain hadn't disappeared.
He had only changed it.
The First Heart was still connected to the greater network.
And that network existed across worlds.
The woman continued.
"Every fragment you seal strengthens the original."
Ayan's eyes widened.
"Then everything we've done..."
"Has brought it closer to awakening."
Seraphine stared at her.
"Then why did you let us come here?"
The woman smiled.
"Because I needed the Key."
Ayan raised his weapon.
"You used us."
"Yes."
The woman didn't deny it.
"I needed you to open the door."
"So you could bring me here."
"Yes."
"And now?"
The woman's eyes turned completely black.
"Now I can finally go home."
The ground exploded.
A massive black root burst from beneath the staircase.
It wrapped around the woman.
She didn't resist.
Instead, she smiled.
Seraphine screamed.
"Mother!"
The woman looked at her one final time.
"Forgive me."
Then her body dissolved into black light.
The light entered the ground.
The heartbeat beneath the city became deafening.
Boom.
Boom.
BOOM.
The entire alternate Valenne began collapsing.
Ayan grabbed Seraphine.
"Run!"
They sprinted toward the staircase.
The city behind them began disappearing.
Buildings collapsed into black dust.
The sky cracked.
The roots above began descending.
Mira shouted,
"The door!"
Ayan looked ahead.
The Seventh Door was still there.
But it was closing.
"Go!"
Everyone ran.
Maren crossed first.
Doctor Rowan followed.
Mira jumped through.
Seraphine reached the doorway.
Then stopped.
Ayan looked back.
"What?"
She stared at the collapsing city.
"Something is coming."
"What?"
A golden eye opened beneath the streets.
Not the fragment they had sealed.
Not the heart beneath the mountain.
Something much larger.
Something that filled the entire underground world.
A voice echoed through the collapsing city.
**KEY.**
Ayan froze.
The voice continued.
**VESSEL.**
Seraphine's chest began glowing.
**RETURN.**
The Seventh Door began closing.
Ayan grabbed Seraphine.
"Now!"
They jumped through.
The doorway vanished.
Silence returned.
They collapsed onto the grass outside the monastery.
For several seconds, nobody moved.
Then Ayan sat up.
The silver notebook appeared beside him.
A new message appeared.
**WORLD CONNECTION ESTABLISHED.**
Ayan's expression darkened.
Another line appeared.
**THREE WORLDS REMAIN.**
Then:
**TWO ARE FALLING.**
And finally:
**ONE IS WATCHING.**
Ayan stared at the words.
Seraphine looked over his shoulder.
"What does the last one mean?"
Ayan slowly closed the notebook.
"I don't know."
The mountain behind them pulsed once.
Far away...
Something answered.
And this time, the voice wasn't coming from beneath the earth.
It was coming from the sky.
"Found you."