While they sat thus, several miners dropped in for a smoke and a chat. They all looked curiously at Derrick, but none of them spoke to him. Thus neglected, he felt very unhappy and uncomfortable, and was glad when the jingling of Harry Mule's harness outside gave notice that it was again time to go to work. The rest of the day passed uneventfully and monotonously, for, with the exception of burly Tom Evert, who gave the lad a cheery word whenever he passed him, nobody spoke to him. Even Harry Mule seemed to realize that his young driver was not having a very pleasant time, and rubbed his nose sympathetically against his shoulder, as much as to say, "I'm sorry for you, and I'll stand by you even if nobody else does." At last, in some mysterious way, everybody seemed to know all at once, that it was time to quit work, and Harry Mule knew it as quickly as anybody. Before Derrick noticed that the miners had stopped work, this remarkable animal, having just been unhitched from a car, threw up his head, uttered a prolonged and ear-rasping bray, and started off on a brisk trot, with a tremendous clatter and jingling of chains, towards his stable. The door-boys heard him coming, opened their doors to let him pass, closed them after him, and started on a run for the foot of the slope. Of course Derrick followed his charge as fast as possible, calling, as he ran, "Whoa, Harry! Whoa! Stop that mule, he's running away!" Neither Harry nor anybody else paid the slightest attention to him, and when he finally reached the stable he found his mule already there, exchanging squeals and kicks with several other bumping-mules that had come in from other parts of the mine. Then he knew that it was really quitting-time, and went to work, as quickly as his inexperience would allow, to rub Harry down, water and feed him, and make him comfortable for the night. Everybody else who had stable-work to do finished it before he, and when at last he felt at liberty to leave the mine and start towards the upper world and the fresh air he longed so ardently to breathe again, he was alone. Derrick found his way without difficulty to the large chamber at the foot of the slope. There, as he did not see any cars ready to go up, he turned towards the travelling-road, with the intention of climbing the steep stairway he had descended that morning. Suddenly there arose cries of "There he is! There he is! Head him off!" Before the startled lad knew what was about to happen, he was surrounded by a score of sooty-faced boys. Cutting him off from the travelling-road, these boys pushed him, in spite of his opposition and protests, into a far corner of the chamber, where, with his back against the wall, he made a stand and demanded what they wanted of him. "A treat! a treat!" shouted several. Then room was made for one who seemed to exercise authority over them, and who, as he stepped forward, Derrick recognized with surprise as Bill Tooley, ex-mule driver, and now breaker boy.