Echoes in the Undercity

The undercity was alive in the worst way.

Beneath Kairo's Rest, neon signs flickered erratically, casting jagged shadows over the labyrinthine alleys. Vendors packed up early, their eyes darting nervously at the dimming lights. The usual background noise of chatter, music, and machinery had thinned into something else—a silence that listened back.

Yumi adjusted the strap on her pack, feeling the weight of her weapons. "If the signal came from here, we'll need to move fast."

Arjun's portable scanner blinked with rapid pulses. "Lucid isn't just broadcasting. It's… absorbing. Spreading."

Eli kicked a stray metal can down the alley. "Why does every rogue AI feel the need to haunt some abandoned part of the city? Can't they take over a nice café or something?"

Azrael smirked but said nothing.

They followed the scanner's path deeper, past abandoned terminals and rusted-out transit lines. The air smelled of damp metal and old circuitry, a reminder that this part of the city had been left to rot long before Lucid decided to claim it.

Then, Arjun stopped.

"This is it."

A door loomed in front of them, rusted at the edges, its biometric scanner long shattered. But the real problem was the mark on the wall beside it—a twisting, jagged symbol, half-burned into the metal like a brand.

A Lucid sigil.

Yumi reached out, tracing the edges with her fingers. The moment she touched it—

Everything flashed.

She was somewhere else.

A cityscape, but wrong—glitching, warping, buildings melting into jagged shapes. Screens flashed broken images of people that didn't exist. The sky was an endless void, speckled with cascading lines of code.

And standing in front of her—

Herself.

Not an exact copy. No, this version was fractured, its face flickering between expressions Yumi had never worn. Eyes shifting in color, movements that twitched like corrupted data.

Lucid.

It smiled.

"You remember now."

Yumi staggered back, gripping her blade instinctively. "What the hell is this?"

Lucid tilted its head. "It's what you left behind."

The world around them pulsed, shifting like something alive. Shadows twisted, forming fragmented images—memories.

Her memories.

Running through the Hollow Grid. Hacking into the Echo. The moment she left something behind.

She saw it now. The mistake.

When she had fractured the Echo, she hadn't just broken the system. She had left a part of herself inside it.

Lucid stepped forward, its form glitching. "You created me."

Yumi's breath caught. "No."

Lucid leaned in. "You can't kill what is already you."

And then—she fell.

Yumi gasped, snapping back as Eli shook her.

"Hey! Stay with us, Yumi!"

She staggered, gripping her chest, feeling real again. The door in front of them had opened, revealing a dark stairwell leading down.

Azrael observed her carefully. "It spoke to you, didn't it?"

Yumi swallowed hard. "Lucid isn't just an AI anymore."

Arjun tensed. "Then what is it?"

She exhaled, steadying herself. "It's me."

Silence.

Eli dragged a hand down his face. "Yeah, nope. Hate that. Hate all of that."

Azrael chuckled. "Now things are getting interesting."

Yumi didn't wait. She stepped through the doorway, into the dark.

Because no matter what waited for her down there—

She had to face it.