The journey to the Underworld began with silence.

Not ordinary silence.

Not the quiet of snowfall or empty rooms.

This silence felt alive.

It pressed against Evangeline’s ears as she followed Acheron down the ancient stone stairway beneath the ruins, winding deeper and deeper below the mountain. The world above had vanished almost immediately behind them. No wind. No rain. No sound except the steady echo of footsteps across black stone.

Well.

Mostly steady footsteps.

Eva’s boots slipped every few minutes because the stairs appeared to have been designed by someone who actively hated balance and basic survival instincts.

“Are all death realms legally required to be this slippery?” she muttered after catching herself against the wall for the third time.

None of the guardians reacted.

Acheron continued walking ahead of her without turning around.

Which, annoyingly, somehow made him seem even taller.

The black coat flowing behind him moved like liquid shadow through the darkness. Blue lantern-fire burned along the corridor walls as he passed, igniting one after another without being touched.

Eva noticed that nothing illuminated before he approached it.

As though the Underworld itself waited for permission to exist around him.

That was unsettling.

Everything here was unsettling.

The staircase finally opened into a vast cavern, and Eva stopped walking so suddenly that one of the guardians nearly collided with her.

“Oh,” she breathed.

The Underworld stretched endlessly beneath the earth.

A black river cut through enormous cliffs of obsidian stone, glowing faintly silver beneath drifting fog. Massive bridges arched across the darkness in impossible spirals. Entire cities had been carved directly into the cavern walls, their pale lights flickering like distant stars.

And above everything—

No sky.

Just darkness without end.

Eva stared openly.

“Well,” she admitted quietly, “that’s horrifyingly impressive.”

One of the guardians hissed disapprovingly.

Eva ignored it.

Far below them, long skeletal boats drifted silently across the river. Hooded figures stood motionless at their fronts, guiding crowds of pale translucent souls toward distant gates carved into the cliffs.

Some spirits walked calmly.

Others screamed.

The screaming echoed everywhere.

Eva immediately regretted looking too closely.

Acheron finally spoke without slowing his pace.

“The Ashen Waste.”

She glanced toward him. “You say that like I’m supposed to know what it means.”

“It is the kingdom of the dead.”

“Yes, I gathered that from the atmosphere and the endless suffering.”

One guardian let out another offended choking noise.

Honestly, they were becoming repetitive.

Acheron led them across one of the massive bridges spanning the river below. The black stone beneath Eva’s boots hummed faintly with cold energy.

She looked down once.

Immediately wished she hadn’t.

The river beneath them was not water.

Shadows moved inside it.

Faces too.

Human faces.

Thousands of them.

Some appeared peaceful.

Others looked trapped beneath the surface, silently clawing upward.

Eva stepped away from the edge so quickly she nearly walked into Acheron’s back.

Unfortunately, he had stopped moving without warning.

Eva caught herself at the last second.

Barely.

Acheron turned slowly toward her.

Silver eyes.

Unreadable expression.

“You should watch where you walk.”

Eva glared at him.

“You should consider announcing when you randomly stop like a haunted statue.”

One of the guardians whispered, scandalized, “She insults him continuously.”

“Yes,” Eva said without looking away from Acheron. “It’s becoming a coping mechanism.”

Something flickered briefly in his gaze again.

That strange almost-expression she had noticed before.

Not amusement.

But close enough to disturb her.

Acheron resumed walking.

Eva followed more carefully this time.

Mostly because falling into the soul-river seemed like an unpleasant way to spend eternity.

The deeper they traveled into the Underworld, the colder the air became.

Not natural cold.

This cold felt empty.

Like standing inside something dead.

Eva rubbed her hands against her coat sleeves.

“You know,” she said eventually, “for someone called the Lord of Souls, you’re surprisingly terrible at hospitality.”

“You are not a guest.”

“Right. Prisoner. I remember.”

“You are bound by contract.”

“That sounds slightly less concerning when you stop saying it like a threat.”

Ahead of them, enormous black gates slowly began opening on their own.

The sound echoed through the cavern like grinding mountains.

Beyond the gates stood the palace.

Eva stopped walking again.

“Oh, you cannot possibly live there willingly.”

The palace rose directly from the cliffs above the river, massive towers of black stone disappearing into darkness overhead. Silver fire burned in hundreds of narrow windows. Giant statues lined the entrance staircase, each one depicting hooded figures holding broken crowns.

Everything about the place looked cold.

Not abandoned.

Not ruined.

Controlled.

Painfully controlled.

Acheron climbed the palace steps without hesitation.

The guardians immediately split apart, disappearing into shadowed corridors surrounding the entrance hall.

Eva followed more slowly.

The moment she stepped inside, warmth hit her face.

Not much.

But enough to surprise her.

The enormous hall stretched endlessly beneath vaulted ceilings covered in silver carvings. Blue flames flickered inside hanging iron chandeliers. Long black banners drifted softly through the still air.

And standing in perfect silence along both sides of the hall—

Servants.

Dozens of them.

Every single one pale, motionless, and watching her.

Eva immediately straightened her coat.

“I don’t enjoy this,” she whispered.

Acheron removed his gloves slowly as he walked farther into the hall.

Eva’s stomach tightened unexpectedly.

His hands were pale.

Not ordinary pale.

Colorless.

Like frost beneath moonlight.

Long fingers marked with faint silver cracks beneath the skin.

Power rolled off him the moment the gloves came off.

The servants lowered their heads instantly.

Even the flames in the chandeliers flickered violently.

Acheron flexed one hand once, slowly.

Then he froze.

Eva noticed it immediately.

His shoulders tightened.

The silver cracks beneath his skin glowed faintly blue.

For one strange moment, confusion crossed his face.

Real confusion.

Acheron looked down at his own hand.

Then at her.

The air in the hall changed abruptly.

The flames brightened.

Shadows twisted sharply across the walls.

Eva frowned. “What now?”

He did not answer.

His heartbeat echoed once through the silence.

Loud.

Heavy.

Impossible.

Every servant in the hall went completely still.

Eva blinked.

“…Was that you?”

Acheron’s expression darkened instantly.

Interesting.

Very interesting.

The heartbeat came again.

Stronger this time.

Eva stared openly.

“Oh my God.”

The Lord of Death looked furious.

Not at her.

At the sound.

At himself.

His silver eyes snapped toward the servants.

“Leave.”

Every servant vanished immediately.

Not walked.

Vanished.

The massive doors slammed shut behind them.

Silence crashed through the hall again.

Acheron stood motionless near the center staircase, one bare hand pressed tightly against his chest as though something beneath it offended him personally.

Eva watched carefully.

“You’re having a heart attack,” she offered helpfully.

“I do not possess a functioning heart.”

“Well, something in there disagrees.”

The heartbeat echoed again.

Once.

Hard enough to vibrate faintly through the floor.

Acheron’s jaw tightened violently.

Eva should probably have been terrified.

Instead, against all reasonable judgment, curiosity won.

“You’ve never felt that before, have you?”

His gaze lifted slowly toward her.

The silver in his eyes had gone dangerously bright.

“No.”

The single word sounded almost strained.

Eva swallowed.

For the first time since meeting him, the God of Death no longer looked untouchable.

He looked unstable.

And somehow, that was far more dangerous.