As the rider entered the one street, however, a more definite cause of excitement drew the loose population toward the centre of the road. Immediately their mass blotted out what had interested them. Curiosity attracted the saunterers; then in turn the frequenters of the bars and gambling games. In a very few moments the barkeepers, gamblers, and look-out men, held aloof only by the necessities of their calling, alone of all the population of Pereza were not included in the newly-formed ring. The stranger pushed his horse resolutely to the outer edge of the crowd where, from his point of vantage, he could easily overlook their heads. He was a quiet-appearing young fellow, rather neatly dressed in the border costume, rode a "centre fire," or single-cinch, saddle, and wore no chaps. He was what is known as a "two-gun man": that is to say, he wore a heavy Colt's revolver on either hip. The fact that the lower ends of his holsters were tied down, in order to facilitate the easy withdrawal of the revolvers, seemed to indicate that he expected to use them. He had furthermore a quiet grey eye, with the glint of steel that bore out the inference of the tied holsters. The newcomer dropped his reins on his pony's neck, eased himself to an attitude of attention, and looked down gravely on what was taking place. He saw over the heads of the bystanders a tall, muscular, wild-eyed man, hatless, his hair rumpled into staring confusion, his right sleeve rolled to his shoulder, a wicked-looking nine-inch knife in his hand, and a red bandana handkerchief hanging by one corner from his teeth. "What's biting the locoed stranger?" the young man inquired of his neighbour. The other frowned at him darkly. "Dare's anyone to take the other end of that handkerchief in his teeth, and fight it out without letting go." "Nice joyful proposition," commented the young man. He settled himself to closer attention. The wild-eyed man was talking rapidly. What he said cannot be printed here. Mainly was it derogatory of the southern countries. Shortly it became boastful of the northern, and then of the man who uttered it. He swaggered up and down, becoming always the more insolent as his challenge remained untaken. "Why don't you take him up?" inquired the young man, after a moment. "Not me!" negatived the other vigorously. "I'll go yore little old gunfight to a finish, but I don't want any cold steel in mine. Ugh! it gives me the shivers. It's a reg'lar Mexican trick! With a gun it's down and out, but this knife work is too slow and searchin'." The newcomer said nothing, but fixed his eye again on the raging man with the knife. "Don't you reckon he's bluffing?" he inquired. "Not any!" denied the other with emphasis. "He's jest drunk enough to be crazy mad." The newcomer shrugged his shoulders and cast his glance searchingly over the fringe of the crowd. It rested on a Mexican. "Hi, Tony! come here," he called.