Tube Mouse

I marched down the fluorescent-lit Underground corridor alongside the rest of the commuters. There were distant screams.
The others in my bloc of people broke ahead, more keen to see daylight than me; alone, I walked over a bridge that was illuminated by a ghoulish yellow light.
In the seam between the walls and the floor, a tiny, rotund and filthy black mouse bobbled along rapidly , its tail whisking behind it as it sought the safety of the dirty track and the electrified line that afforded it protection from the terrifying humans who shrieked and flapped at such a height.