'After Twenty Years' is a short story written by O. Henry, first published in his anthology, The Four Million in 1906. Read on to know more... The policeman on the beat moved up the avenue impressively. The impressiveness was habitual and not for show, for spectators were few. The time was barely 10 o’clock at night, but chilly gusts of wind with a taste of rain in them had well nigh de-peopled the streets. Trying doors as he went, twirling his club with many intricate and artful movements, turning now and then to cast his watchful eye adown the...