The Collapse Countdown

The word collapse didn’t feel real at first.

It floated in the tunnel like it belonged to someone else’s life.

Not mine.

Not Bianca’s.

Not Alessio’s.

But then the ground shifted again.

A deeper rumble this time.

Like the entire underground system had taken a breath… and decided not to let it out.

Alessio reacted instantly.

“Move.”

His hand grabbed mine hard.

Not gentle.

Not asking.

Just pulling me into motion.

Bianca stepped back quickly as Matteo remained completely still.

That was the most terrifying part.

He wasn’t reacting.

He was expecting.

“This was always your plan,” Alessio said coldly, eyes locked on Matteo.

Matteo tilted his head slightly.

“Not always,” he replied. “But it became necessary.”

Another tremor ran through the tunnel.

Dust fell from the ceiling in thin streams.

I coughed slightly, instinctively covering my mouth.

Bianca looked at me.

For a moment, something softer flickered in her eyes.

“Lucia,” she said quietly, “you need to trust me.”

I let out a bitter laugh.

“Trust you?” I repeated. “After everything?”

Her lips parted slightly.

Then closed again.

Like she didn’t know how to answer that.

Alessio stepped slightly in front of me again.

Protective instinct.

Constant.

But Matteo raised a hand lazily.

“You’re all thinking too small,” he said.

Alessio’s jaw tightened.

“We’re underground. The system is collapsing. What part of this is small?”

Matteo smiled faintly.

“The part where you think you’re still in control.”

Another low mechanical sound echoed through the tunnels.

Not above.

Not around.

Below.

Something was shifting under us.

Bianca suddenly turned toward the panel again.

Her fingers hovered above it.

“Stop,” Alessio ordered immediately.

But Bianca shook her head.

“I can slow it.”

“That system belongs to Matteo,” Alessio snapped. “Anything you touch—”

“It responds to me,” she interrupted sharply.

Silence.

That stopped even Matteo’s smile for a second.

I looked between them.

“What do you mean it responds to you?” I asked.

Bianca hesitated.

Then exhaled.

“Because I’ve been inside the system longer than you think.”

My stomach twisted.

Alessio stepped closer to her.

“Explain.”

Bianca’s eyes flickered.

And for the first time, she looked genuinely conflicted.

“I didn’t just arrive here,” she said quietly. “I was integrated into it.”

That didn’t make sense.

“What does that even mean?” I demanded.

Matteo answered instead.

“It means,” he said calmly, “she became part of the architecture.”

My blood ran cold.

Bianca didn’t deny it.

That silence again.

That horrible confirmation without words.

Alessio’s expression darkened.

“You modified her,” he said to Matteo.

“I refined her,” Matteo corrected.

My chest tightened violently.

“No,” I whispered. “Bianca… tell me that’s not true.”

Her gaze finally met mine fully.

And this time, she didn’t look cold.

She looked exhausted.

“I didn’t have a choice,” she said.

Something in my chest cracked slightly.

“Everyone has a choice,” I said.

Her voice softened.

“Not when you’re already inside the system.”

Another tremor.

Harder.

This time the tunnel lights flickered violently overhead.

Red warning pulses filled the space.

Alessio looked upward.

“We don’t have time for this,” he said sharply.

Matteo spread his arms slightly.

“You’ve never had time,” he replied. “You’ve just been borrowing it.”

Alessio moved fast.

Too fast.

In one motion, he grabbed my arm and pulled me backward toward the tunnel fork.

“We leave,” he ordered.

Bianca stepped forward.

“You can’t leave that way,” she said urgently.

Alessio paused.

That pause alone meant he was listening.

“What do you mean?” he asked.

Bianca pointed toward the right tunnel.

“It leads deeper into the collapse zone.”

“And the other?” I asked quickly.

Her eyes darkened.

“The core chamber.”

Matteo smiled faintly.

“Correct.”

My stomach dropped.

“That sounds worse,” I muttered.

“It is,” Bianca said honestly.

Alessio turned slightly toward me.

Decision time.

Always decision time with him.

Every second felt like calculation.

Then he made up his mind.

“We go to the surface route,” he said.

Bianca shook her head quickly.

“There isn’t one anymore.”

Alessio froze.

“What?”

Matteo answered.

“I sealed it.”

Of course he did.

Another violent tremor cut through the tunnel.

This time, cracks appeared along the stone walls.

Thin at first.

Then spreading.

Like veins breaking under pressure.

My breathing quickened.

“We’re running out of options,” I whispered.

Alessio looked at me.

And for a split second—

something human broke through his control.

“I know,” he said quietly.

That honesty scared me more than anything else.

Bianca stepped closer again.

“There is a third route,” she said.

Matteo sighed.

“There always is.”

Alessio turned sharply.

“Where?”

Bianca hesitated.

Then pointed behind Matteo.

“Past him.”

Silence.

That wasn’t a suggestion.

That was a statement of war.

Matteo smiled wider.

“I was waiting for that,” he said.

Alessio didn’t move.

Neither did I.

The tension in the tunnel felt like pressure building inside a sealed container.

Bianca looked at me again.

And this time, her voice softened.

“I’m sorry,” she whispered.

“For what?” I asked.

She didn’t answer.

Instead, she stepped backward toward Matteo.

That alone told me everything I didn’t want to know.

She was choosing sides again.

But not the way I expected.

Alessio’s voice was low.

“Lucia,” he said without looking away from Matteo, “stay behind me.”

“I am behind you,” I replied automatically.

“No,” he said firmly. “Closer.”

I stepped in.

The moment I did, Matteo laughed softly.

“You still protect her like that,” he said to Alessio.

Alessio didn’t respond.

Matteo tilted his head.

“Even now.”

Another tremor.

Stronger.

A chunk of stone fell from the ceiling and shattered near our feet.

The tunnel groaned.

Loudly.

Like it was alive.

Bianca suddenly spoke again.

“Now,” she said sharply.

And everything happened at once.

The lights exploded into full red.

A siren sounded.

The walls shifted violently inward.

The collapse had officially started.

Alessio grabbed my wrist instantly.

“Run.”

We moved.

Fast.

Bianca ran too—but not toward us.

Toward the center chamber entrance.

Toward Matteo.

I didn’t understand.

None of it made sense anymore.

The tunnel split ahead into darkness.

Alessio pulled me left.

But Bianca shouted—

“Don’t go that way!”

Alessio didn’t stop.

“Why?” I screamed.

“Because it’s already sealed!”

That made him hesitate for half a second.

Half a second was enough.

A massive sound erupted behind us.

Metal grinding.

Stone breaking.

The tunnel behind collapsed in a violent wave.

Dust exploded through the air.

I coughed hard, nearly falling.

Alessio pulled me tighter.

“Keep moving,” he ordered.

We ran.

But the ground beneath us wasn’t stable anymore.

Each step felt like it could be the last.

The walls were closing in.

Literally.

The system was contracting.

Bianca’s voice echoed behind us.

“Lucia!”

I turned slightly.

She was still there.

Running.

But slower now.

Trapped between us and Matteo.

“Bianca!” I screamed.

Her eyes met mine.

And for a split second—

I saw the sister I knew.

Just for a fraction.

Then it was gone.

“Go!” she shouted.

Another collapse.

A wall between us cracked violently.

Separating her from us.

Separating everything.

Alessio pulled me harder.

“Don’t look back.”

But I did anyway.

And I saw Bianca turn toward Matteo—

not away—

toward him.

And smile.

That smile didn’t belong to my sister.

The tunnel behind her sealed completely with a deafening crash.

We were cut off.

Alessio stopped abruptly at a junction.

Dead end.

My breath caught.

“No,” I whispered.

Alessio looked up.

Then down both paths.

Neither was safe.

The system was sealing them one by one.

A final tremor shook the ground so violently I almost fell.

Alessio caught me instantly.

And then—

the lights went out.

Total darkness.

Only the emergency red glow remained.

And from somewhere deep in the tunnel system—

Matteo’s voice echoed one last time.

Calm.

Close.

Too close.

“Choose carefully, Alessio.”

A pause.

Then—

“Only one of you is meant to leave.”

Alessio’s grip on my hand tightened violently.

And in the darkness, I felt him move closer to me—

protective, immediate—

just as something cold pressed against the back of my neck.

A gun.

And a voice whispered behind me:

“Don’t move, Lucia.”

I froze completely.

Because I recognized that voice too.

And it wasn’t Bianca.

It was someone I thought was already dead.