The deeper they went into the slums, the more the city seemed to rot from the inside out.
Streetlights gave way to jury-rigged sodium bulbs dangling from frayed wires. Buildings leaned like tired old men, windows boarded with corrugated metal or simply missing. The rain here smelled different—metallic, chemical, like burnt circuits. No scores glowed above heads anymore. Most people down here had ripped their implants out years ago, trading future for freedom. Or so they told themselves.
Kai and Riley moved fast, sticking to shadows. Kai's shoulder throbbed with every step, but the pain felt… useful. Like feedback from a new limb he was still learning to control.
They slipped into an abandoned maintenance tunnel beneath what used to be a distribution hub. The door was long gone; only rust stains remained. Inside, the air was thick with dust and the faint ozone tang of old electronics. A single emergency strip-light flickered overhead, painting everything sickly green.
Riley slid down against the wall, breathing hard. "Okay. We're not dead. That's step one." He looked up at Kai. "Step two: explain what the hell just happened back there."
Kai didn't answer right away. He leaned against the opposite wall, eyes half-closed, letting the new sensation settle.
Thread Sight.
It wasn't like normal vision. It was more like… overlay. Thin green filaments drifted through the air—thousands of them—connecting everything. Some were thick and pulsing, others faint and fraying. They linked people to devices, devices to networks, networks to the Grid itself.
He could see them now, even with his eyes open.
One thread, bright and steady, ran from Riley's pocket straight up through the ceiling—his comms implant, still pinging the surface grid every few minutes. Another, thinner thread snaked from Kai's own head, vanishing into the dark like it was reaching for something far away.
And everywhere—everywhere—tiny fracture lines shimmered. Cracks in the system. Places where the code didn't quite line up. Places he could… push.
"Kai?" Riley's voice was small. "You're doing the glowing-eyes thing again."
Kai blinked. The threads dimmed slightly, but didn't vanish.
"I can see it," he murmured. "The Grid. Not the pretty hologram version they show on billboards. The real one. It's… strings. Everything's connected by strings."
Riley swallowed. "That sounds terrifying."
"It is." Kai pushed off the wall and walked deeper into the tunnel. "Come on. There's an old server room at the end. No cameras. No active feeds. I can feel it."
"How?"
"Because nothing's touching it." Kai tapped his temple. "No threads."
They found it after another minute of walking— a reinforced door with faded yellow hazard markings. Someone had spray-painted DEAD ZONE – DO NOT ENTER in dripping red years ago. Kai pushed. It opened with a groan.
Inside: dust, darkness, and one dormant terminal on a metal desk. No power. No lights. Perfect.
Kai sat in the cracked chair. His fingers hovered over the dead keyboard for a second—then he closed his eyes.
Thread Sight flared brighter.
He followed the faint green line that still leaked from his own skull. It stretched backward through the tunnel, through the alley, all the way to the shattered server vault. There it split—thousands of branches, like roots reaching into the city's underbelly.
One branch was thicker. Stronger. It pulsed.
Kai reached for it mentally, the way someone might reach for a distant radio signal.
The terminal in front of him crackled. A single line of text appeared, unbidden:
ECHO PROTOCOL – HOST INTERFACE
Current sync: 14%
Available threads: 1,847,392 (local subnet)
Select target? Y/N
Kai's heart kicked once—hard.
He thought: Y.
The screen flooded with data. Names. Locations. Scores. Secrets. A live feed of half the western slums scrolled past faster than eyes could follow. Conversations. Bank transfers. Blackmail threads. Love affairs. Suicides scheduled for next week because scores had dropped too low.
Riley leaned over his shoulder, face pale in the blue glow. "Jesus. That's… that's everything."
"Not everything," Kai said quietly. "Just what's leaking through the cracks."
He focused on one thread—bright red, angry, severed at both ends. It belonged to a name: Mara Voss. Age 24. Former Grid analyst. Implant forcibly removed six months ago. Last known location: three blocks east. Status: Hunted.
A photo appeared—sharp features, short black hair dyed silver at the tips, eyes that looked like they'd seen too much and hated every second of it.
The girl from earlier tonight. The one who'd watched him from across the street while he ate the soy burger with Riley. She'd been there before the drones arrived.
Kai's lips curved. "She's looking for me."
Riley blinked. "Wait—what?"
Before Kai could answer, the terminal glitched. The screen stuttered. A new window forced its way open—black background, white text, no interface.
SUBJECT ZERO.
You should not be awake.
Return to standby or be collected.
No signature. No source trace. Just cold certainty.
Kai stared at the words for three heartbeats.
Then he typed, slowly, deliberately:
No.
The screen went black.
For a second, nothing.
Then every thread in Kai's vision flared white-hot.
Pain lanced through his skull—like someone had driven nails into his optic nerves. He gasped, doubled over. Blood dripped from both nostrils now.
Riley grabbed his shoulders. "Kai! Talk to me!"
Kai forced his eyes open.
The threads were burning. Not metaphorically—literally burning, green turning to angry crimson, snapping like overstretched wires.
And through the largest fracture—the one that led back to the vault—a shape was forming.
Not a person. Not code.
Something older.
Something watching him back.
A voice—not the calm one from before—slithered into his mind. Low. Female. Almost amused.
"Curious little glitch. You bite harder than the others."
Kai gritted his teeth. "Who are you?"
"Someone who remembers when the Grid was still bleeding." A pause. "Run, little zero. They're already reallocating resources. The pretty ones are coming. And they don't ask nicely."
The connection snapped.
The terminal died completely. Smoke curled from the vents.
Kai slumped forward, breathing ragged.
Riley was shaking him. "What the hell was that? You were muttering. And your nose—"
Kai wiped the blood with his sleeve. "Someone knows my name. Not Kai. Subject Zero."
Riley's face went white. "That's… that's what the enforcers called you."
"Yeah."
Silence stretched.
Then Kai stood—slowly, like every movement cost something.
"We can't stay in the open anymore," he said. "We need to disappear. Really disappear."
Riley nodded, numb. "Where?"
Kai looked toward the eastern exit of the tunnel. Toward the name still burning in his mind.
"Mara Voss," he said. "She's either an ally… or the first real test."
He smiled again—that crooked, dangerous thing.
"And either way, I want to meet her."
Outside, far above in the glittering towers, a woman in white watched a single red dot blink on her private holoscreen.
She touched it gently.
The dot pulsed once.
Then it began to move—fast—toward the east slums.
She smiled.
Small. Perfect. Terrifying.