CONCEPTS: build, carry, commander, sleigh, tunnel

GEN: a sleigh carrying the mail through a tunnel built by military commander

CONCEPTS: land, plane, tower

GEN: plane taking off or landing and flying over tower

CONCEPTS: pass, stare, window

GEN: Steam leaks off the window as doe - eyed someone stares open mouthed at the passing illuminations.

CONCEPTS: attention, attract, glass

GEN:
Someone bangs his glass to attract everyone's attention.