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The Stalker's Calculus
Author: Penyu langit
last update2026-08-11 20:35:46

"Stay close, Sumi. Don’t breathe the air directly if you can help it. Pull your scarf up."

"Ari, you’re practically vibrating. Are you okay? You’re acting like there’s a sniper on every roof."

"Worse than snipers, Sumi. Something is hunting me. It knows my favorite spots. It knows my rhythm."

"You’re talking in riddles again. Who’s hunting you? The Spores? The army?"

"Neither. Both. It’s an apex predator. An evolved, data-driven nightmare. It’s a Stalker."

"A Stalker? Like, some guy in a mask?"

"I wish. It’s a husk, but it’s fast. It’s intelligent. It learns from every time I’ve killed it."

"That sounds like a personal problem, brother. Can we just get to the extraction point?"

"We can’t just walk there. If I follow the path I used last time, I’m dead before the corner. Everything I do, it predicts."

"So stop being predictable! You’re always so tactical, always counting steps. Just be a mess for once."

"A mess? You think that’s going to stop a machine?"

"I think it’s going to confuse it. You’re playing chess against a computer. Stop playing, start kicking the board."

Ariful stopped in the mouth of a dark alley, his hand tightening on the hilt of his knife. He looked at the shadows, waiting for the flicker of movement. He felt the cold pressure on his neck again—the gaze.

"You’re right. I’ve been optimizing. I’ve been trying to win a game that’s rigged."

"Exactly. So be the glitch. What are you waiting for?"

"It’s coming. I can feel the air displacement. It’s right behind the stack of crates."

"Then don't go for the vitals! Throw something! Break the pattern!"

Ariful snatched a rusted pipe from the ground and hurled it toward the opposite wall, not the crates. A blur of grey, elongated muscle exploded from the shadows, lunging for where the pipe should have been—but the Stalker’s trajectory stuttered as it realized the trick.

"Too slow!" Ariful shouted, sprinting not toward the target, but directly toward the creature.

The Stalker screeched, its limbs unfolding like origami blades. It anticipated a strike to the chest and swiped, but Ariful dropped, sliding through the wet muck instead of parrying.

"See? It hates improvisation," Sumi yelled from behind a dumpster. "Keep doing it!"

"It’s adjusting! Watch out!"

The creature lashed out, its claws carving deep gouges into the brick where Ariful had been a heartbeat before. It landed with a heavy, wet thud, its glowing eyes locking onto his with terrifying intensity.

"It’s not attacking like a beast anymore, Ari. It’s watching you like a mirror!"

"I see it. It’s analyzing my muscle twitch. Every move I make, it copies."

"So stop moving like a soldier! Move like a street kid!"

Ariful scrambled up a fire escape, vaulting over the railing in a chaotic, uneven motion. The Stalker scrambled after him, its movements eerily perfect, perfectly mirrored, perfectly lethal.

"It’s still right on my heels, Sumi! The logic holds!"

"Then stop trying to be clever! Break your own limbs if you have to! Surprise yourself!"

Ariful spun mid-air, not to strike, but to shove his own body into the railing, tumbling down in a haphazard heap of limbs. The Stalker, expecting a tactical strike, lunged into empty air, missing the grab by inches.

"I didn't plan that! I just fell!"

"Keep falling! It can't predict what you don't intend to do!"

The creature hit the ground with a hiss of frustration, its form flickering, destabilizing as it struggled to process the lack of tactical data. Ariful didn't give it a second. He charged, not with his knife held high, but with a blind, desperate tackle, smashing his head into the creature's ribcage.

"Gotcha!"

They rolled through the muck, teeth and claws clashing. Ariful felt the creature’s grip on his throat—cold, calculating, and hungry. It pinned him, its faceted eyes pulsing with a violent, violet light that seemed to drain his very energy.

"Why... are you... fighting?" the creature gurgled, its voice a jagged, synthesized approximation of human speech.

"Because I want... to live!" Ariful wheezed, his vision tunneling.

"But you... have died... so many times. The loop... is a cage. Why bother?"

"Because she’s waiting!"

Ariful slammed a rock into the creature's temple, not a precision strike, just a frantic, sloppy blow. The monster recoiled, its movements glitching, stuttering like a damaged video file.

"She?" the creature mocked, its voice sharpening, becoming a perfect, mocking echo of Ariful’s own voice. "You think she cares about a memory, Ariful? You’re just a script running in a void."

"I’m the one holding the knife!"

"And I am the one... who has read the whole book."

The creature stood up, its form shifting. For a split second, it didn't look like a monster. It looked like a hollowed-out, grey-scaled version of Ariful himself.

"You think you’re changing the game? You’re just playing the expansion pack."

"Sumi, get back!"

"I’m not going anywhere, Ari! Kill the damn thing!"

The creature laughed—a dry, rattling sound that mirrored Ariful’s own breathless panting. It leaned in, its hand reaching out to touch his chest, right where he had died so many times before.

"You want to know what’s next, Ariful? You want to know why she keeps dying?"

"Shut up!"

"It’s not the Spores, little loop-runner. It’s you. It’s always been you. You’re the source of the infection. You bring the death with you every time you wake up."

The creature’s voice deepened, dropping into a familiar, melodic cadence that made Ariful’s heart stop cold. It was Zoya’s voice.

"Ari, don't listen to it! It’s a trick!" Sumi screamed, her voice cracking.

"You want to save her?" the Stalker whispered, its face twisting into Zoya’s features, pale and haunting. "Then stop waking up."

Ariful stared into the creature’s eyes, his breath hitching in his throat. The mask of the monster slipped, and beneath it, he saw not the face of a beast, but his own face—aged, weary, and eyes filled with the agony of a thousand resets.

"I’m not done yet," Ariful rasped, his hand trembling as he raised his knife.

The creature tilted its head, its voice turning back into his own—cold, dead, and utterly devoid of hope.

"We’ll see, Ariful. We’ll see which version of us survives the next ten seconds."

The Stalker lunged, and as it did, the shadows behind it began to tear open, revealing not the alley, but a glimpse of the Bastion, and Zoya, standing in the middle of a burning room, staring directly into the viewer's eyes.

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  • The Training Manual

    The creature’s bladed limbs tore through the concrete like tissue paper. Ariful lunged, his body moving by instinct, a blur of kinetic efficiency. He didn't use a weapon; he used his bare hands to deflect a strike that would have decapitated a steel column."You’re really going to die for a memory, aren't you?" the entity hissed, its voice layered with the mocking cadence of a dozen ghosts."I’m not dying for a memory," Ariful grunted, pivoting as a spike of obsidian-hard chitin grazed his shoulder. "I’m dying to make sure you can’t use me to kill anyone else.""You think this is about you?" The entity shifted, its form briefly mimicking Ariful’s own frame, complete with his rugged jaw and tired eyes. "You’re just the prototype. The first batch of humans was too brittle. You? You’re flexible."Ariful rolled across the jagged floor, narrowly avoiding a massive, crushing blow from the entity’s tail. "Prototype, huh? Should I be flattered?""You should be terrified. Every time you died i

  • The Cost of Evolution

    The blinding violet supernova collapsed into a singular, agonizing point of pressure. Ariful slammed into the cold, jagged debris of the sub-level floor, his chest heaving. The air tasted like scorched copper and ozone. Beside him, Zoya’s body was a fever-dream of shifting bioluminescence."Ari? Tell me you’re still in there. Please." Zoya’s voice was ragged, scraping against the silence."I’m here," Ariful gasped, his hands hovering over the pulsing, violet web of tissue spreading across her collarbone. "I’m here, but the connection is... it’s hungry, Zoya.""It’s burning me. Like someone is pouring liquid glass under my skin." She winced, clutching her shoulder. "Make it stop. Use the code, just—kill it, or kill me.""I’m not killing you. I’m rewriting the handshake.""What does that mean? You’re acting like you’re reading a manual that isn't there.""I’m reading the source code, Zoya. It’s all in my head. Every node, every frequency.""You’re shaking, Ari. Why are your eyes bleedin

  • Traitors in the Hive

    The silence in the rotunda was heavy, a suffocating blanket of ozone and stale, ancient dust. Ariful stood amidst the flickering violet light, his fingers twitching with a newfound, terrifying conductivity. Across from him, the Stalker—his own twisted shadow—waited, but the air shifted. The distant, rhythmic stomp of heavy combat boots signaled that the Bastion’s shock troops had finally breached the inner sanctum.Ariful didn’t flinch. He adjusted his stance, the movement so fluid it looked like a ripple in water."They're coming for us, aren't they?" Zoya’s voice drifted from the shadows, though she looked pale, her uniform shredded and stained with the glowing residue of the core."They aren't coming for us, Zoya. They’re coming for the battery. And they’re late," Ariful replied, his voice echoing with a strange, harmonic quality."That's a hell of a way to put it. You look like you’ve been possessed by a damn lightning storm, Ari.""I just woke up. That’s all."The doors burst inw

  • The Parliament's Secret

    The screech from the hallway wasn't just noise; it was a physical blow, a vibration that rattled the fillings in Ariful’s teeth. He didn't look at the door. He looked at Zoya, still fast asleep, her chest rising and falling with a peaceful rhythm that felt like a lie."Wake up, Zoya. We’ve got company," Ariful whispered, his hand shaking as he hovered over her shoulder, his thumb hovering right over that pulsing, violet bump.Zoya’s eyes snapped open instantly, the haze of sleep vanishing, replaced by the hard, predatory glint of a soldier. She didn't scream; she just grabbed her sidearm from the floor. "The door?""They’re outside. The Stalker is here, too.""You knew it would come here, didn't you?" She was already up, moving with a fluid, lethal grace that made his blood run cold. "Why the hell didn't you wake me sooner?""I was busy checking your math, Zoya. And honestly? I wish I’d stayed asleep.""What is that supposed to mean? Tell me!"Ariful pointed at her shoulder. "Your ski

  • A Bed of Thorns

    The transition was violent, a lurching distortion of reality that deposited Ariful and Zoya into the claustrophobic confines of a structural support room within a ruined hotel. Dust motes danced in the flickering light of a chemical glow-stick."Lock the door, Zoya. Now.""I already did, Ariful. Don’t hover.""Is the seal holding? The acoustics in here are terrible.""The door is reinforced steel. It’s held so far, hasn't it?"Ariful paced the small room, his boots scraping against the uneven floor. He checked the window, his jaw set in a hard line."They don't stop. You know that. They don't get tired.""Neither do I. Take a breath, Ari. You’re going to give yourself an aneurysm before the husks even get a chance.""I don't have the luxury of breathing.""Everyone has the luxury. It’s free. Try it."Zoya leaned against the heavy bulkhead, her tactical vest discarded, revealing the sweat-drenched fabric of her undershirt. She looked exhausted, her eyes tracing his frantic movements."

  • The Stalker's Calculus

    "Stay close, Sumi. Don’t breathe the air directly if you can help it. Pull your scarf up.""Ari, you’re practically vibrating. Are you okay? You’re acting like there’s a sniper on every roof.""Worse than snipers, Sumi. Something is hunting me. It knows my favorite spots. It knows my rhythm.""You’re talking in riddles again. Who’s hunting you? The Spores? The army?""Neither. Both. It’s an apex predator. An evolved, data-driven nightmare. It’s a Stalker.""A Stalker? Like, some guy in a mask?""I wish. It’s a husk, but it’s fast. It’s intelligent. It learns from every time I’ve killed it.""That sounds like a personal problem, brother. Can we just get to the extraction point?""We can’t just walk there. If I follow the path I used last time, I’m dead before the corner. Everything I do, it predicts.""So stop being predictable! You’re always so tactical, always counting steps. Just be a mess for once.""A mess? You think that’s going to stop a machine?""I think it’s going to confuse

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