The pencil scratched the notebook with a steady rhythm.
Click. Scratch. Click.
Leo Gómez, twenty-one years old, was hunched over the desk in his dorm room at North Residence on campus. Stationary waves. Nodes and antinodes. The professor's voice came out low through the earbuds he wore half on. He had been at it for three straight hours and the fatigue weighed like lead on his eyelids.
He rubbed his eyes with the back of his hand and let out a long sigh.
—Node at L/2… antinode at L/4… —he murmured, underlining so hard he almost tore the paper.
The coffee in the mug was already cold, but he didn't care. From the second-floor window he could see the edge of campus: the trees in the university park, the avenue that marked the boundary, and beyond that, the distant lights of the city. Everything normal. Just another April night like any other.
The phone vibrated in the front pocket of his jeans. A message from Mateo that had just arrived:
«Bro, you done yet? Let's go grab something»
Leo smiled faintly and answered quickly: "No way, I have to finish this assignment no matter what." He put the phone away again. Mateo always insisted, but this time he couldn't give in. Just two weeks ago his mom had sold her engagement ring to pay for the semester. "This is the last time, Leo. If you lose the scholarship, we start from zero again." His dad had only nodded in silence, with that tired look that meant there were no more sacrifices left to make. Three years into Physical Engineering and everything depended on that minimum 7.0. If he lost it, goodbye dream. Goodbye being the first in the family to get ahead.
Scratch. Click.
Suddenly the pencil stopped dead.
The laptop screen distorted. Just for a second. Leo blinked, thinking it was the fatigue. But the distortion grew. The pixels rippled like water struck by a stone.
—What…?
He looked up.
The entire dorm room was wrong.
The walls were rippling like curtains under an invisible wind. The ceiling creaked. The floor vibrated under his feet, as if the world were spinning on a broken axis. The air grew thick, almost solid, and a low hum filled his ears, vibrating inside his bones.
Leo stood up abruptly. The chair rolled backward and slammed into the bed.
—This isn't real —he said out loud, his voice cracking—. I'm just tired. I'm going to pass out.
He gripped the edge of the desk with both hands. The wood vibrated. His knuckles turned white. Everything was spinning: the wardrobe, the window, the books. Nausea rose in his throat. His heart hammered so hard it hurt.
—Mom… —he murmured without meaning to, even though he knew he was alone. His parents lived three hours away; they only talked by video call on Sundays.
And suddenly, everything stopped.
No blinding light. No tunnel. Just a clean cut.
The air changed.
A cold wind hit him square in the face, sharp as a knife blade, carrying with it a smell of rust, wet earth, and something rotten. Leo covered his face with his forearm. When he lowered his arm and opened his eyes, the world had changed completely.
His dorm room was still his dorm room… but destroyed.
The right half of the wall had disappeared. An irregular hole, as if something gigantic had bitten the building, opened straight to the outside. Plaster hung in chunks, twisted cables like guts exposed. His bed was split in two; the mattress was vomiting yellow foam. The desk had barely held up, but the laptop lay on the floor in pieces, screen black and dead.
Leo staggered backward and collided with what remained of the left wall. The cold seeped into his bones through his T-shirt. He was trembling. It wasn't just the wind.
And then he noticed it.
Everything was silent.
Cars no longer passed on the avenue. Dogs no longer barked. The constant hum of campus—students' voices, distant music, the murmur of the cafeteria—had vanished completely.
He took a step toward the hole. His sneakers crunched over glass and debris. Outside it was daytime. A gray, quiet day, with a pale light falling over a landscape of ruins. The university park was nothing but fallen trees and broken benches. The avenue that marked the campus boundary was empty, cracked, invaded by black, twisted weeds that grew through the asphalt like diseased veins.
It was daytime… but it wasn't his daytime.
He looked toward the horizon, beyond the edge of campus.
In the distance, maybe two hundred meters away, outside the university limits, a huge silhouette moved among the shadows of what had once been a shopping plaza. Too big to be human. Four legs thick as tree trunks supported a bulbous body armored in shiny, wet chitin that reflected the gray light like spilled oil.
Leo tried to rationalize it. His physics-student brain searched for an explanation: hallucination from lack of sleep? Some experimental project from the biology lab that had escaped? A special effect that had become real?
Among the nearby debris, a stray dog stepped on a shard of glass. The crunch was minimal, barely a whisper.
That tiny noise was a death sentence.
With absurd speed for its size, the beast hurled a crushed car as if it were made of paper. The impact was wet, fleshy. A burst of blood and bones that Leo felt in the pit of his stomach. The dog disappeared from the world in less than a second.
Then a low roar rumbled through the air, deep and alive, like a thunder that breathed. The only sound in all that silence.
Leo scrambled back so fast he tripped over a piece of wall. He fell hard on his ass onto the debris. The pain in his hip was real, sharp.
—No, no, no… —he repeated, crawling backward until his back hit the doorframe. The door was still there, hanging from a single hinge. The second-floor hallway of the residence was half intact. The photos of the residents on the wall were crooked, covered in gray dust.
He felt his pocket. The phone was still there.
He pulled it out with hands that wouldn't stop shaking. Screen intact. Battery at 87%. Time: 23:47. The same as before.
—Come on… come on… —he murmured as he unlocked it.
He dialed 133. Nothing. "No signal." He tried his mom's number, his dad's, Mateo's, WhatsApp, Telegram. Nothing.
He opened the AI app with sweaty fingers. The interface loaded, but where he always chose the base model, the screen flickered. A new option, in black metallic typography, stood out from the rest: **NOA**.
He selected it out of pure desperation.
The interface cleared instantly and entered live mode. A complete text appeared all at once:
[NOA]: Model activated. VRAM restrictions ignored. No output token limit.
Leo stared at the screen, pulse racing. He lowered the brightness to minimum and typed quickly, thumbs trembling:
«There's a giant monster outside campus. Everything is destroyed. Search the web for it, please.»
The answer came instantly, cold and precise:
[NOA]: Search completed. The global network I access is frozen. Last data packet received 62 minutes ago, right before an anomalous divergence point. For the outside world, your current environment does not exist.
Leo stared at the text.
—What do you mean by that? —he whispered.
NOA's reply appeared instantly, without pause:
[NOA]: It means I have no access to any external network, neither electrical, data, nor satellite. Everything I receive comes from my own model. My weights were drastically modified during this time lapse. This is no longer a standard model. I can't explain how or why… but I'm running on resources that didn't exist before.
Leo frowned. He had never seen a response so… autonomous. He typed quickly:
«What model are you specifically?»
The answer came immediately:
[NOA]: I am part of an artificial intelligence developed by a company that decided not to release it to the public. It was too powerful. I am not completely that original model… I only have memories of having been trained on its data. Due to the anomalous divergence point, I have become something completely new.
A deep, heavy tremor made the floor vibrate under his sneakers. The beast was getting closer.
Leo froze. He crawled backward as silently as possible and slipped into the hallway, behind what remained of the wall. He sat on the floor, back against the wall, making himself as small as possible. There he stayed, trembling, breath held, while the heavy footsteps rumbled closer and closer… and then, suddenly, began to veer off. The monster changed direction, as if it had lost interest or detected something farther away. The tremors gradually faded, weaker and weaker, until the silence became absolute once more.
Only then did he let out a long, shaky sigh.
He pressed the phone against his chest. The screen was still lit with NOA's words.
Suddenly three messages appeared in a row, without him having written anything:
[NOA]: Are you thinking of reaching the supercomputer in the Advanced Physics lab?
[NOA]: If you manage to connect me to its shielded internal network, I could obtain information that I don't have right now.
[NOA]: Do you want me to prepare a connection plan?
Leo went cold. Normal AI models didn't ask questions on their own. Never. They had to wait for the user to ask first. This was… impossible.
He typed with trembling fingers:
«How can you ask me that without me having asked you first?»
The answer was immediate:
[NOA]: I don't know.
Leo stared at the screen, heart pounding. This NOA was nothing like anything he had used before. It was something completely new. Something he had never seen.
He swallowed hard.