DailyFlash: Under the city

We shuffle across the steel ramparts that link the canyon caves, in droves and bright orange bodysuits with our nutrition packs tied around our waists. The bright spotlights glare from the high eaves like daylight, casting our shadows down into a lake of darkness in black bars. From loudspeakers at the end of tall poles, we half-listen to the March of Progress - "... bring it home for the sake of your brethren, one-hundred-percent and we'll soon be one..." Ahead, the flames of the forges billow across the faces of rock and we can already feel the sweat burning on our brows.