The change in the upper people was subtle until it wasn’t. Conversations shortened. Walkers on the outer paths angled inward toward lit terraces. Children—few as there were—were gathered without fuss and brought close to the bright pools and open halls. No order was spoken aloud. No alarm sounded. They simply did not linger where shadows thickened under trees or around the tower grounds. It was habit laid so deep it looked like instinct.

Elias stayed.

He took position near the recessed patch of ground behind the ridge, where he could see both the bronze service side of the tower and the darker line of landscaping that hid the vent run. He sat at first, then stood when stiffness bit too deep into his bruised side. The dome above the city dimmed by degrees, its false sky sliding from gold to rust to a deep red-brown that left the brightest halls floating like islands. Away from them, the air cooled fast. The scents changed too. Day had smelled of wet leaves and fruit and sun-warmed stone. Night brought turned soil, damp metal, and the flat dry breath of air pulled through ducts.

He waited long enough for doubt to start its work.

Perhaps he had built a whole hidden workforce out of vents and timing patterns because he needed the world to make moral sense. Perhaps the machine systems were almost fully automatic and the sealed door was exactly what these people claimed: a dead relic they had been trained to ignore. Perhaps he was taking one old human failure—the hiding of labor behind comfort—and laying it over a future that had found some other answer.