Eleven o'clock
Trina kept at her post . The noise of approaching footfalls grew less and less frequent . Little by little Polk Street dropped back into solitude . Eleven o'clock struck from the power-house clock ; lights were extinguished ; at one o'clock the cable stopped , leaving an abrupt and numbing silence in the air . All at once it seemed very still . The only noises were the occasional footfalls of a policeman and the persistent calling of ducks and geese in the closed market across the way . The street was asleep .