Eventually, the vertical tunnels opened into a vast, silent cavern. At the center sat an old atmospheric processor, humming with a soft, bioluminescent glow. And there, sitting on a heap of scrap, was Lena. She was covered in grease, her eyes fixed on a small, green sprout growing from a crack in the floor—the first real life Elias had seen in years.

The rain didn't just fall in Sector 4; it dissolved. It was a caustic, neon-soaked drizzle that ate at the hem of Elias’s coat as he stood at the lip of the Great Descent. Below him lay the Sub-Strata, a vertical graveyard of rusted pipes and forgotten people where the city’s light never reached. Somewhere down there, in the dark, was Lena.

"She is lost," the drone insisted. "Gravity is a one-way street, Elias."

"I know," he said, the weight of the miles above them finally feeling light. "I told you. Wherever you go, "