Part 1

The day the richest heir in Guadalajara shouted that he felt a fire stuck behind his eyes, his father ordered the gates of the mansion closed so that no one could record the humiliation.

At 19, Julián Beltrán had been living in total darkness for 12 years. He was the only son of Alejandro Beltrán, founder of one of Mexico’s most powerful technology companies, owner of buildings, laboratories, and multimillion-dollar contracts that could buy almost any miracle. Almost. Because they hadn’t been able to buy the young man’s sight.

For years, Alejandro took him to specialists in Monterrey, Houston, Madrid, and Zurich. He paid for experimental surgeries, absurd therapies, spiritual retreats in the Chiapas jungle, and diagnoses that always ended the same way: inexplicable, irreversible blindness, impossible to correct. Eventually, the businessman stopped searching for answers and began building him a padded, luxurious, and sad life. Julián had grand pianos, chauffeurs, private tutors, and an immense garden he had never seen.

That afternoon, he was playing a melody in the central courtyard, guided by touch and a perfect memory, when a skinny girl slipped in among the bougainvillea and rose bushes. She wore a faded dress, torn sneakers, and a look too serious for her age. Everyone on the corner of the avenue knew her because she begged for coins at the traffic lights. Her name was Alma.

The guards ran towards her.

—Take it out right now.

But Julian stopped playing and raised his hand.

—Don’t run her.

Alejandro, who was on the phone with an investor, turned around, irritated. It bothered him to see that dirty girl in a world he had shielded from anything uncomfortable. Before he could give another order, Alma approached the piano and stared intently at Julián’s face, as if she heard something no one else could.

—You’re not blind—she said, without asking permission or alms—. They put something on you to cover you up.

The silence was so abrupt that even the fountains seemed to go out.

Alejandro let out a dry, incredulous laugh.

—And what do you know about eyes, girl?

Alma did not back down.

—It’s not the eye. It’s what lives inside.

Julian reached out into the void until he found the girl’s wrist. As soon as he touched it, he shuddered. For the first time in months, something disturbed the resigned calm with which he moved through the house.

“Let her speak,” he murmured.

Alejandro felt a dark anger. It seemed offensive to him that a street child sounded more reliable than the doctors he had paid a fortune for. Even so, something in Julián’s expression stopped him for a few seconds. Alma leaned in front of the boy and placed her small fingers on his cheeks. Then she gently lifted one of his eyelids.

“Don’t even think about touching it,” Alejandro warned.

But the girl had already inserted her fingernail with chilling precision.

Julian let out a muffled groan, not of pain, but of an ancient pressure that seemed to open up behind his forehead. Alejandro took a step forward, ready to pull it away, when Alma made a swift movement and withdrew her hand.

Something black was writhing in his palm.

It wasn’t a scab.
It wasn’t dirt.
It wasn’t blood.

It was a tiny, shimmering creature with a dark shell that reflected light like oil on water. It was the size of a fingernail, but its edges were too perfect, almost geometric, as if it didn’t quite belong to the natural world. It moved.

Alejandro went white.

—Guards!

Alma closed her hand just a little, without crushing it.

“Don’t step on it,” he said with a calmness that was frightening. “If you break it here, it will release dust and wake the others up.”

“The others?” Alejandro asked, his voice breaking.

The creature let out a tiny, almost imperceptible squeak and leaped onto the marble floor. Instead of fleeing toward the door, it slithered at impossible speed toward the shadow of the piano, leaving a black line on the stone.

Julian brought both hands to his face.

“My other eye is burning,” she whispered. “Like something is moving inside.”

Alma turned toward the base of the piano. On one side, behind a wooden molding and next to the wall facing the music room, there was a narrow opening that no one had noticed.

The girl knelt down and looked inside.

“He didn’t come here to hide,” she said very slowly. “He came to warn us that they found him.”

Alejandro felt a brutal cold run up his back.

—Did they find what?

Alma looked up. For the first time, she seemed scared.

—What they wanted to bury the day your son stopped seeing.

Julian extended his hand towards her without hesitation.

—Take out the other one. I trust you.

Alejandro didn’t stop her anymore. Alma repeated the movement, even more slowly, and from beneath her left eyelid pulled out another creature. This one was larger, darker, and didn’t stir. It remained motionless in her palm, as if waiting for a command.

Then Alma let out a scream and pressed her temple.

“They weren’t blocking his view,” she said in a whisper. “They were protecting a memory of him.”

At that moment, a damp, multifaceted sound, like dozens of feet scraping wet wood, erupted from inside the wall behind the piano. Then came the smell: burnt metal, old dampness, and something rotten. Alejandro placed his hand against the wall and felt a rhythmic vibration, like a heart beating on the other side. The garden lights went out abruptly, not because of a power outage, but because a gigantic shadow covered the house. Day turned to night in a matter of seconds, and Alma understood before anyone else that this wasn’t just the beginning: she had just woken up.

Part 2

Alejandro ordered sledgehammers, pickaxes, and everything else needed to break through the wall of the music room to be brought in, and in less than 10 minutes the wall gave way amidst dust, plaster, and an unbearable stench of old mold and burnt wire. Behind it was a long, narrow, hot cavity, and inside moved dozens of black creatures clinging to the insulation, clustered one on top of the other like living tissue pulsing to the rhythm of a sick breath. When the guards shone their flashlights, the entire mass contracted, and the room filled with high-pitched shrieks. Alma didn’t look away. She said that these beings, whom she called Nocturnes, didn’t eat flesh or blood, but emotional darkness, the twilight left by trauma when a memory became trapped, unable to escape. Julián, still trembling, put his hands to his head because in the midst of that stench he began to feel something he hadn’t recognized since childhood: flashes, not of light, but of shattered scenes, his mother’s perfume, a wet road, a scream from inside a car. In the center of the nest, almost embedded in the wall, was an object that didn’t belong to that living thing. It was a small music box, made of dark wood, covered in cobwebs and dust. Alejandro recognized it instantly, and the air left his chest. It had belonged to Verónica, Julián’s mother, who had died 12 years earlier in a supposed car accident. He himself had sworn that the box was lost during the move after the funeral. But it hadn’t been lost. It had been hidden there. Alma took it out without fear, wiped it with her sleeve, and opened it. Inside there was no ballerina. There was an old photograph: Julián, at 7 years old, smiling next to his mother. On the back was a hastily written note, its shaky handwriting instantly recognizable to Alejandro. Verónica had left a desperate message saying that the boy had seen everything and that she didn’t know where to hide the evidence so Alejandro wouldn’t find it, because discovering it would destroy what remained of her family forever. No one spoke for several seconds. Then Julián took a step back and murmured that the crash hadn’t been an accident. He said he was beginning to remember that, that afternoon, his mother hadn’t been alone in the car, that she had been fleeing, and that before his father arrived home, he had seen a man arguing with her by the car window. The revelation hit like a ton of bricks. Alejandro barely had time to process it before a hidden service hatch at the back of the wall creaked open. Esteban Lira, a former engineer from the company whom Alejandro had fired years before for internal fraud, stepped out. He was holding a pistol and had a deep-seated rage in his eyes. He pointed it directly at Alma. He said the girl had to die because she had ruined everything. Chaos erupted in seconds. One of the guards tried to move, Alejandro lunged forward, Julián tripped over the piano bench, and Alma,With savage speed, he hurled the motionless Nocturne at the man’s face. The creature clung to his skin as if recognizing fear. Esteban screamed, fired a shot at the ceiling, and fell to his knees as Alejandro pummeled him until he was on the ground. There, amidst blood, dust, and shrieks, the man finally confessed what he had kept buried for twelve years: he had embezzled millions from the company, Verónica had discovered it, wanted to report him, and he had followed her to silence her. The chase led to the crash. Julián, hidden in the back seat, saw everything. And when some associates from Alejandro’s secret laboratory realized the boy could talk, they used those organisms to block the memory. The Nocturnes weren’t a plague. They were a biological technology created to seal trauma within the darkness. But the treatment spiraled out of control and turned forgetfulness into blindness. Then Alejandro understood the most monstrous thing of all: the cover-up hadn’t originated outside his world. It had grown within his own empire.

Part 3

The patrols arrived before dawn. Esteban was handcuffed, still shouting that he wasn’t going to jail alone, and several executives’ names began to crumble along with his confession. But in the mansion, nothing mattered more than Julián, sitting on the floor, the music box clutched in his hands, his face streaked with tears. The emergency room doctors couldn’t explain why his pupils, dormant for twelve years, were beginning to react to the flashlight. First, he discerned blurry shadows, then outlines, and then a trembling clarity that broke his heart when he finally managed to focus on his father’s face. Alejandro, the man who had dominated corporations, local governments, and international councils, fell to his knees before his son like a defeated man. He didn’t apologize with elegant speeches. He told him the truth: that he had never ordered anyone to hurt him, but that he had built a life where power, the fear of scandal, and the obsession with protecting the family name had allowed monsters like him to be born alongside him without his wanting to see them. Julián listened with a serenity that hurt more than any scream. Then he looked up and searched for Alma, because the first face he wanted to see with his restored eyes wasn’t that of the billionaire who could buy the world, but that of the street child who dared to touch what no one else wanted to touch. When he finally found her by the garden gate, in the gray light of dawn, he felt he was seeing something impossible: a small, tired girl with torn clothes and eyes older than many adults’. He asked her why she had helped him. Alma shrugged and said that, years ago, she too had been given one. Not to blind her, but to turn her into a vessel capable of detecting the darkness hidden in others. She managed to tear it out herself, and since then she could sense where secrets festered. Alejandro wanted to give her money, a house, school, everything. Alma refused every offer. He said he hadn’t come in for charity, but because some horrors, if not confronted in time, end up devouring entire houses from within. Before leaving, he left one last promise hanging in the air: Julián would have to face the whole truth, even the most painful parts. It wasn’t enough to regain his sight; he had to learn not to close his eyes again. When the sun finally rose over Guadalajara, the mansion still smelled of cracked plaster and burnt wires, but for the first time in 12 years, Julián saw the color of the sky, his father’s broken face, and his mother’s photograph smiling at him from the music box. And he understood something that money had never been able to teach him: the worst blindness wasn’t blindness, but the blindness of those who prefer to live in luxury rather than face pain head-on.