Sofía Márquez POV
The hallway ended at a reinforced door marked with the old Ministry of Energy logo in faded red. Not an official seal—more like a smear of dried blood.
"This is the last level before the reactor," I whispered, pressing my ear against the metal. Nothing except a deep hum, as if the entire earth was breathing.
Behind me came Elena, Camila… and Julián.
Julián walked like a caged animal. The emergency thermal suit we'd borrowed from the Substation was torn in two places; thin streams of vapor leaked out every time he exhaled. Heat followed him like an aura—silent, invisible, undeniable.
"If you're going to explode, warn us," I said without humor.
He didn't answer. His eyes—almost constantly haloed by that faint violet glimmer now—lingered on me a second too long.
Elena finished checking the panel.
"The elevators aren't working," she said. "Cut off from above."
"Then we climb down the shaft," I answered.
Miguel sighed—half prayer, half complaint.
"Anything's better than going back," I said, gripping my flashlight.
I forced the manual door open.
A wave of hot air hit us in the face—and below, a massive void: the elevator shaft dropped at least eighty meters down, a clean industrial throat into darkness.
Hanging cables. Sparks along the rails. And far, far below—a pulsing red light like a waking eye.
"The reactor detector," Elena said. "We're close."
Perfect. The closer we got, the worse things became for Julián.
Great.
"Let's go," I ordered.
We hooked our harnesses to the side rails. I went first. The metal was warm.
Very warm.
Twenty meters down, I heard it: a mechanical whirring—light, precise. Not wind. Not human.
Drone.
"Contact!" I shouted as a shadow detached itself from a side panel.
Three black spheres, each the size of a melon, spinning in a descending spiral. No lights. No markings. Top-tier American design: autonomous guardians for confined environments.
The first one opened a front panel, revealing a tiny mouth glowing red.
"Cover your eyes!"
The drone fired.
The laser sliced through a steel bar like hot butter.
Elena's cable snapped sideways.
I swung around the rail, legs hooked, and slammed my machete into the drone as it zipped past. The blade bounced off like I'd hit a rock.
"They're not metal! They're ceramic composites!"
"Thanks for the update, Sofía!" Julián shouted, descending like it was nothing.
But something was different about him.
The air around his body rippled—heat distortion, like sunlight over asphalt.
And his hands… glimmered around the edges.
The drone dove toward Miguel.
Julián dropped.
He didn't climb—he let go. A controlled fall, a human projectile. He collided with the drone so hard it exploded in a flash of white. The smell of burnt ceramic rose like a punch.
Julián hung from the rail with one hand, breathing fire.
Elena yelled:
"Don't touch him! He's absorbing heat from the impact!"
And he was.
The skin on his forearm glowed reddish, almost incandescent. The violet veins pulsed hungrily.
The second drone unfolded three electrified needles.
"Elena!" I yelled. "Disable its thermal sensor!"
"How?!" she shouted back.
"Use your damn brain! It's your superpower!"
She yanked out the portable EMP pulse from the reactor kit. Triggered it without hesitation.
The pulse erupted with a dull thunder.
The drone collapsed, hitting the wall and sparking.
The third one retracted and shot back up into the darkness.
"I don't like that," I muttered.
We kept descending.
We reached the bottom platform—and saw the level -6 doorway open like a black mouth.
Inside…
A man.
A scientist.
Alive.
Dr. Elena Vargas POV
The man had a silvering beard, cracked glasses, and a lab coat with the Ministry logo. Papers, improvised consoles, and a sputtering auxiliary generator surrounded him.
He wasn't surprised to see us.
He smiled.
"Finally," he said. "You made it."
Sofía aimed her weapon immediately.
"Who the hell are you?"
"Dr. Arístides Rojas," he replied calmly. "Lead scientist of Project Alpha Hyperthermia. And you… brought the sample."
My heart skipped.
"How do you know that?"
"Because I can smell it," he said, eyeing the lead case. "The container is cracked, isn't it? Leaking traces. That's why the drones followed you."
Impossible.
But he wasn't lying.
"Rojas," I said. "What happened to your team?"
The smile hardened.
"They proved something critical: Alpha only needs the right host."
He looked at Julián. Studied him like a surgeon studying fresh tissue.
"Oh," he whispered with morbid fascination. "And I see yours has already begun the secondary mutation."
Sofía stepped between them.
"Speak clearly or I cut your tongue out."
"He's no longer just a carrier," Rojas said with chilling calm.
"He's a thermal sink. A living cell tuned to the reactor."
Julián's eyes flickered.
"What did you say… about the reactor?"
Rojas smiled too much—dangerous, hungry.
"It's overheating. Severely. And you feel it, don't you, Julián?"
Julián breathed—heat humming around him.
And I saw it.
The violet veins in his neck ignited like glowing filaments.
"What are you doing to him?" I screamed.
"Me? Nothing," Rojas said with a shrug. "The reactor is calling him. And he's answering. You see? He's the perfect key. The door we couldn't open without vaporizing half the country."
Sofía tightened her grip on the machete.
"Talk."
"He is the only creature who can enter the core and survive the heat," Rojas said almost reverently. "A living catalyst."
I shoved Camila behind me, stepping forward.
"We're not handing him over."
"Handing over?" Rojas laughed. "Doctor, I don't need to use him. He's already active."
And then—
Julián bent over.
His pupils dilated.
The violet glow turned into a burning red-white.
The concrete under his boots began to scorch.
God.
Julián Herrera POV
I hear them.
All of them.
As if they're fires.
The reactor.
The heat.
Calling me.
Burning me.
Pulling me.
—NO—
My voice.
Or what's left of it.
Something cracks inside. Something I can't hold back.
Camila says my name.
Elena steps forward.
No. No. No.
If I touch them—
I'll melt them alive.
But behind me—
The scientist.
That bastard.
Warm. Thrumming. Hungry.
And underneath—
The reactor.
More.
More.
A need. A new instinct. A hunger not for flesh… but for energy.
Sofía says my name like a blade.
Elena tells me to breathe.
And I hear something else.
Above.
The third drone.
And footsteps.
Sweepers.
Many.
Too many.
The reactor vibrates.
My skin burns.
The mutation
will
not
wait.
Neither will I.
Sofía Márquez POV
It happened like a silent explosion.
Julián arched, the light in his veins surged like lava, and then—he moved.
He didn't leap.
He didn't run.
He glided, leaving trails of warped heat in the air.
The descending drone didn't stand a chance: Julián grabbed it with one hand and crushed it against the wall. The ceramic shell cracked like an egg.
The Sweepers' mechanical march echoed above.
Rojas stepped back, ecstatic.
"It's beauti—!"
Julián turned.
And walked toward him.
Heat bent the air around his body, warping everything. The floor blackened under his steps.
Elena cried out:
"Sofía! We need to isolate him from the reactor! Or he'll overload!"
"And how the hell do we do that?!"
"The elevator!"
I stared.
"WHAT?"
"If we activate it manually, the thermal cage cuts the core's heat flux! It cools him! Like a thermal prison!"
Great.
Tiny problem:
The elevator hung over an 80-meter drop, half its systems dead.
Sweepers incoming.
Drones booting up.
A supercharged, incoherent Julián about to kill Rojas or all of us.
"I'll go," I said.
"NO," Elena said. "I'll—"
"You're the only one who understands the mutation," I said, pushing her back. "You keep Julián from snapping. I'll activate the elevator."
"He's stronger than you!"
"Then I hope he's busy killing Rojas."
I clenched my jaw.
And ran.
Dr. Elena Vargas POV
Time fractured.
Every action floated on its own.
Sofía climbing the rails toward the suspended elevator.
The elevator groaning, lifeless above us.
Julián cornering Dr. Rojas, whose eyes shone with fanaticism.
Me holding the sample case—the only reason the world might survive this.
Camila trembling.
"Julián," I whispered. "Look at me."
He turned.
Air behind him rippled. Lights bent. His skin glowed like heated metal.
"You're human."
"Was."
"No. You are."
His eyes flickered.
The violet veins dimmed.
For a second.
Rojas hissed behind him:
"Go to the reactor. It's calling you."
And everything broke.
Julián slammed Rojas into the wall.
The man screamed.
The concrete melted around him.
—JULIÁN—
I didn't think.
I acted.
I hurled the cryo-extinguisher over him.
White vapor engulfed his torso. His glowing veins crackled with thermal rage.
He roared.
But he stopped.
Just for an instant.
Enough.
"Sofía!" I screamed.
Above, at the shaft's edge, Sofía shouted:
"ACTIVATED!"
The elevator lurched, groaning…
and dropped.
Not downward.
Toward us.
The thermal cage descended with a blunt thud, sealing the path between Julián and the reactor.
The heat flow snapped.
Julián collapsed to his knees.
Breathing.
Alive.
Rojas wasn't as lucky. His scorched body fell like a burnt log.
And in the darkness above…
The Sweepers arrived.