"No, no," Martin answered impatiently, "not just here. I mean the whole
city."
"Yes," Wass said dryly, "it does. I'm sure this is where all my
nightmares stay when they're not on shift."
Martin turned on his heel and started down a metal avenue which, he
thought, paralleled the street above. And Rodney and Wass followed him
silently. They moved along the metal, past unfamiliar shapes made more
so by gloom and moving shadows, past doors dancing grotesquely in the
three lights, past openings in the occasional high metal partitions,
past something which was perhaps a conveyor belt, past another
something which could have been anything at all.
The metal street ended eventually in a blank metal wall.
The edge of the city--the city which was a dome of force above and a
bowl of metal below.