He saw much of his new hero all the following winter. He accompanied him to many mills, and on one glorious occasion occupied a position in the coming champion's corner. When the prize fighter toured, Billy continued to hang around Hilmore's place, running errands and doing odd jobs, the while he picked up pugilistic lore, and absorbed the spirit of the game along with the rudiments and finer points of its science, almost unconsciously. Then his ambition changed. Once he had longed to shine as a gunman; now he was determined to become a prize fighter; but the old gang still saw much of him, and he was a familiar figure about the saloon corners along Grand Avenue and Lake Street. During this period Billy neglected the box cars on Kinzie Street, partially because he felt that he was fitted for more dignified employment, and as well for the fact that the railroad company had doubled the number of watchmen in the yards; but there were times when he felt the old yearning for excitement and adventure. These times were usually coincident with an acute financial depression in Billy's change pocket, and then he would fare forth in the still watches of the night, with a couple of boon companions and roll a souse, or stick up a saloon. It was upon an occasion of this nature that an event occurred which was fated later to change the entire course of Billy Byrne's life. Upon the West Side the older gangs are jealous of the sanctity of their own territory. Outsiders do not trespass with impunity. From Halsted to Robey, and from Lake to Grand lay the broad hunting preserve of Kelly's gang, to which Billy had been almost born, one might say. Kelly owned the feed-store back of which the gang had loafed for years, and though himself a respectable businessman his name had been attached to the pack of hoodlums who held forth at his back door as the easiest means of locating and identifying its motley members. The police and citizenry of this great territory were the natural enemies and prey of Kelly's gang, but as the kings of old protected the deer of their great forests from poachers, so Kelly's gang felt it incumbent upon them to safeguard the lives and property which they considered theirs by divine right. It is doubtful that they thought of the matter in just this way, but the effect was the same. And so it was that as Billy Byrne wended homeward alone in the wee hours of the morning after emptying the cash drawer of old Schneider's saloon and locking the weeping Schneider in his own ice box, he was deeply grieved and angered to see three rank outsiders from Twelfth Street beating Patrolman Stanley Lasky with his own baton, the while they simultaneously strove to kick in his ribs with their heavy boots.