"I shivered, looking toward the street, where up the alley through the tunneling dark, three mounted policemen loomed beneath the circular, snow-sparkling beam of the street lamp, grasping their horses by their bridles, the heads of both men and animals bent close, as though plotting; the leather of saddles and leggings shining. Three white men and three black horses. Then a car passed and they showed in full relief, their shadows flying like dreams across the sparkle of snow and darkness. And, as I turned to leave, one of the horses violently ....