Chapter 11: The Core Prison

​The pocket watch hovered above the altar, its brass surface reflecting the eerie blue glow of the awakened city. Lya struggled to her feet, her right hand still throbbing from the earlier rejection. She stared at the watch—her father's final relic, his last clue.

"Lya!" Renée's voice came from behind her, distant and muffled. The entire city trembled, the metallic ground undulating like living flesh, blue light pulsing through the walls like ancient blood flowing through veins.

Lya staggered forward, each step like wading through quicksand. The air around the altar warped, an invisible force field repelling her. Gritting her teeth, she reached out again, her fingers barely grazing the edge of the barrier before a searing pain lanced through her body.

"No… let me through!" she snarled, forcing herself onward.

This time, the backlash was stronger. Her body was flung backward, crashing onto the hard metal floor. But as she fell, the watch's lid flicked open—just a fraction—and a beam of blue light shot out, piercing her forehead.

Memories flooded in.​

She saw her father—not as a hologram, but as he truly was in his final moments.

—Twenty years ago, Dr. Castro stood before the same altar, the star chart clutched in his bloody hands. His left arm, half-mechanized, twitched uncontrollably, blue circuitry crawling beneath his skin. Trembling, he slotted the pocket watch into the altar's groove, whispering words she couldn't hear.

"The Guardians aren't protectors… they're a cage." His voice echoed in her mind. "This city isn't a ruin… it's a prison."

The vision shifted.

—Three jagged shadows peeled from the walls, slithering toward him. They weren't creatures, nor machines—they were something older, something worse. The true "Guardians"—shapeless, ravenous, capable of assimilating anything they touched.

"The key doesn't open the door… it reinforces the lock." His voice grew weaker. "The star chart… it's the final seal."

Another shift.

—Her father collapsed to his knees, carving his last words into the metal with a hunting knife: "DO NOT OPEN THE DOOR." His left arm had fully transformed, flesh sloughing away to reveal skeletal machinery. He looked up, staring into the void—as if he could see Lya, here in the future.

"If you've come… the seal is already breaking." His eyes were desperate, yet resolute. "Don't touch the watch… it's the core of the lock… the last line of defense."

The memory shattered.

Lya gasped, her eyes snapping open. The altar still hummed, the watch still suspended—but now she understood. Her father hadn't disappeared. He had ​become​ part of the lock, his flesh and mind woven into the prison's structure, holding back the Grey Miasma.

And now, by activating the star chart, she had woken the Guardians. The seal was failing.

"Renée!" She pushed herself up, her voice raw. "We have to stop it!"

Renée was already at her side, pale but determined. "How?"

Lya looked at the watch, then at her own right arm—the blue veins had spread to her shoulder. Synchronization was still climbing.

"The watch is the lock's core… but it's also the control node." She clenched her jaw. "If I hit 100% sync, I might be able to override the system—just long enough to reseal the Miasma!"

"And what happens to you?" Renée gripped her arm hard. "You'll end up like your father. Consumed."

Lya didn't answer.

Above the altar, the watch's second hand ticked backward.

The countdown had already begun.