The mountain did not stop shaking after Acheron said the word problem.

If anything, it got worse.

The cracks spreading through the altar widened violently, spilling blue fire down into the ruins below like rivers of lightning. Pieces of black stone collapsed into the abyss beneath the Gate, disappearing into darkness without making a sound.

Eva stumbled backward as the ground lurched beneath her boots.

“Okay,” she said breathlessly, gripping the satchel across her chest, “I feel like this is becoming significantly less stable.”

None of the guardians acknowledged her.

Every creature in the ruins had turned toward the abyss now. Their skeletal armor rattled softly as shadows twisted around them in nervous waves.

Nervous shadows.

That felt deeply unnatural.

Acheron stood motionless near the edge of the broken altar, silver eyes fixed on the darkness below. The storm winds whipped his black coat violently behind him, but the rest of him remained impossibly still.

Like a statue moments before collapse.

One of the guardians approached him carefully.

“My Lord,” it rasped, “the fracture is widening.”

“I can see that.”

“The mortal caused it.”

Eva frowned immediately. “In my defense, I did not intentionally destroy reality.”

The guardian ignored her entirely.

Rude.

Another tremor ripped through the ruins.

This one nearly knocked her off her feet.

A horrible sound rose from beneath the mountain then — not a roar exactly, but something larger. Ancient. Wet. Like stone grinding against bone somewhere far below the earth.

Every guardian stiffened.

Eva’s stomach twisted.

“What,” she asked carefully, “was that?”

No one answered.

Acheron finally turned toward her again.

His expression had somehow become even colder.

“The veil between realms is unstable,” he said. “Your existence here is disrupting it.”

“I would like to officially clarify that I did not ask to become magically offensive to the laws of nature.”

The silver in his eyes flashed faintly blue.

“You speak lightly for someone standing at the edge of annihilation.”

Eva crossed her arms tightly against the freezing wind.

“Well, panic seems unlikely to improve the situation.”

One of the guardians pointed its skeletal spear toward her.

“She should be removed.”

Another hissed, “Destroy her before the fracture spreads.”

Eva took a slow step backward.

That was significantly less comforting than she would have liked.

Acheron said nothing.

And somehow, his silence was worse.

The guardians began moving toward her.

Slowly at first.

Measured.

Like wolves circling an injured animal.

Eva’s pulse spiked hard.

“All right,” she said carefully, “I think we’re reaching a point in the conversation where I strongly object to the direction this is taking.”

The nearest guardian lunged.

Eva reacted on instinct.

She ducked sideways just as the black spear sliced through the air where her throat had been. The movement sent her boots skidding across wet stone.

The second guardian grabbed for her immediately.

Cold fingers closed around the sleeve of her coat—

And exploded into ash.

Blue fire burst violently through the ruins.

The guardian staggered backward with an inhuman scream as its arm disintegrated from the elbow down.

Eva stared at it in shock.

“Oh, that cannot possibly be normal.”

The remaining guardians recoiled instantly.

Not from her.

From Acheron.

The temperature across the ruins dropped sharply.

Frost spread over the stone in jagged white patterns.

Eva slowly lifted her gaze.

The Lord of Death looked furious.

Not dramatic anger.

Not shouting.

Something worse.

Controlled rage.

His shadows had gone completely still around him, frozen in place like black glass.

The damaged guardian collapsed to one knee.

“My Lord—”

“I gave no order,” Acheron said quietly.

Every creature in the ruins lowered itself immediately.

The silence that followed was terrifying.

Eva swallowed hard.

Interesting.

Apparently even monsters feared him.

Acheron descended the broken altar steps slowly, his gaze fixed entirely on her now.

Not the guardians.

Her.

The pressure rolling off him felt suffocating.

Eva forced herself not to retreat.

Mostly because she suspected showing fear around him was like bleeding near sharks.

Acheron stopped directly in front of her.

His silver eyes swept briefly over the tear in her coat sleeve where the guardian had grabbed her.

“You were touched.”

Eva blinked.

“Yes,” she said slowly. “That tends to happen during attempted murder.”

His jaw tightened slightly.

Behind him, the shadows across the ruins began moving again — not wildly this time, but restlessly. Agitated.

Like living things struggling to remain calm.

Acheron’s gaze lifted toward the guardian whose arm had turned to ash.

“What happened?” he asked.

The creature trembled visibly.

“She burned me.”

Eva looked horrified. “I absolutely did not.”

“You carry his mark,” another guardian whispered.

That got everyone’s attention.

Including Acheron’s.

Eva frowned. “I carry whose what now?”

No one answered her.

Very helpful.

Acheron lifted one gloved hand slightly.

The blue fire consuming the damaged guardian vanished instantly, though the missing arm did not return.

Interesting hierarchy.

The God of Death looked back toward Eva.

Something unreadable moved behind his expression.

Calculation.

Possession.

Recognition.

She disliked all three possibilities equally.

“I should leave,” Eva announced suddenly.

Every head turned toward her.

She pointed vaguely toward the mountain path behind the ruins.

“Yes. I think that’s actually an excellent idea. You all clearly have… whatever this is under control, and I personally have no desire to remain near sentences involving words like fracture and annihilation.”

“You cannot leave,” Acheron said.

Eva laughed once.

“I’m sorry, is this the part where I discover I’ve accidentally signed away my freedom in blood?”

A pause.

That was not the reaction she wanted.

“…I was joking.”

“The contract was witnessed by the veil itself.”

Eva stared at him.

The wind howled violently across the ruins.

“You’re telling me,” she said slowly, “that cutting my hand open on a haunted altar counted as legally binding paperwork?”

“For ancient magic, yes.”

“That is deeply irresponsible.”

One of the guardians looked offended again.

Eva ignored it.

Acheron stepped closer.

The cold surrounding him rolled across her skin in sharp waves, but underneath it — impossibly — she could still feel traces of that unbearable warmth from earlier.

Like her body remembered him.

That thought disturbed her immediately.

“You belong to the Underworld until the contract is fulfilled,” he said.

Eva’s exhaustion finally cracked into anger again.

“My sister is dying while I stand here arguing technicalities with death itself.”

“You entered my domain willingly.”

“Because I didn’t have a choice!”

The words echoed harder than she intended.

Silence followed.

For a brief moment, the storm around them softened.

Eva closed her eyes briefly, trying to steady her breathing.

“I just wanted to save her,” she said more quietly.

When she looked up again, Acheron was still watching her with that same unnerving intensity.

Not pity.

Never pity.

But something colder.

Something observant.

Like he was trying to understand why mortals kept destroying themselves for people they loved.

Another roar thundered beneath the mountain.

This time the entire cliffside cracked.

Stone exploded outward from the lower ruins.

The guardians immediately moved into formation.

Weapons drawn.

Shadows twisting violently around them.

Acheron turned sharply toward the abyss.

“The breach is opening further,” one guardian hissed.

Eva looked toward the darkness spreading beneath the altar.

Something was moving down there.

Something enormous.

Acheron’s expression hardened instantly.

Then, without warning, he grabbed Eva by the arm.

The cold of his gloved hand should have felt freezing.

Instead, heat shot violently through her body again.

Eva gasped.

Acheron went rigid.

For one dangerous second, neither of them moved.

His silver eyes locked onto hers.

Too close.

Far too close.

Then his grip tightened abruptly.

“Move,” he ordered.

The next explosion tore the ruins apart behind them.