As Benson, describing the canine phenomena, swung wildly across the sidewalk, it chanced that three other pedestrians were passing in shadowy rank. Benson's shoulder jostled one of them. A Mexican wheeled upon the instant. His hand flashed to his hip. There was a moment of silence, during which Benson's voice was not heard raised in apology. Then an indescribable comment, one burning word, came from between the Mexican's teeth. Benson, rolling about in a semi-detached manner, stared vacantly at the Mexican, who thrust his lean face forward while his fingers played nervously at his hip. The New York kid could not follow Spanish well, but he understood when the Mexican breathed softly: "Does the señor want to fight?" Benson simply gazed in gentle surprise. The woman next to him at dinner had said something inventive. His tailor had presented his bill. Something had occurred which was mildly out of the ordinary, and his surcharged brain refused to cope with it. He displayed only the agitation of a smoker temporarily without a light. The New York kid had almost instantly grasped Benson's arm, and was about to jerk him away, when the other kid, who up to this time had been an automaton, suddenly projected himself forward, thrust the rubber Benson aside, and said--"Yes." There was no sound nor light in the world. The wall at the left happened to be of the common prison-like construction--no door, no window, no opening at all. Humanity was enclosed and asleep. Into the mouth of the sober kid came a wretched bitter taste as if it had filled with blood. He was transfixed as if he was already seeing the lightning ripples on the knife-blade. But the Mexican's hand did not move at that time. His face went still further forward and he whispered--"So?" The sober kid saw this face as if he and it were alone in space--a yellow mask smiling in eager cruelty, in satisfaction, and above all it was lit with sinister decision. As for the features, they were reminiscent of an unplaced, a forgotten type, which really resembled with precision those of a man who had shaved him three times in Boston in 1888. But the expression burned his mind as sealing-wax burns the palm, and fascinated, stupefied, he actually watched the progress of the man's thought toward the point where a knife would be wrenched from its sheath. The emotion, a sort of mechanical fury, a breeze made by electric fans, a rage made by vanity, smote the dark countenance in wave after wave. Then the New York kid took a sudden step forward. His hand was at his hip. He was gripping there a revolver of robust size. He recalled that upon its black handle was stamped a hunting scene in which a sportsman in fine leggings and a peaked cap was taking aim at a stag less than one-eighth of an inch away.