Derrick confessed that he had added a little to one line of the plan, because he thought the line was intended to go that way, and when he drew it so it seemed to make everything come out all right. "Well," said Mr. Jones, "the result shows that instead of making everything come out all right, you made it come all wrong. Now, Derrick, I want this to be a lesson that you will remember all your life. By making that one little bit of a change in a single line you placed yourself and me in great peril. In consequence of the situation to which it led one man has lost his life, and several others came very near doing so. You thought you knew better than your father who drew that plan, and in your ignorance undertook to improve upon his work. "I won't say that good may not come out of all this, for I believe that with the loss of their leader the society of Mollies is broken up, in this colliery at least, for some time to come, but that does not make your fault any the less. "Remember, my boy," he added, somewhat more gently, as he saw great tears rolling down the lad's cheeks, "that the little things of this life lead to and make up its great events, and it is only by paying the closest attention to them that we can ever hope to achieve good results." This was all that was ever said to Derrick upon this subject, but it was enough, and he will never forget it. When he left the presence of the mine boss he was overwhelmed with shame, and was angry to think that what he considered so trifling a thing as to be unworthy of mention should be treated so seriously. For an hour he walked alone through the woods back of the village, and gave himself up to bitter thoughts. Gradually he began to realize that every word the mine boss had said was true, and to see what he had done in its proper light. He thought of all the kindness Mr. Jones had shown him, and the confidence reposed in him. Finally he broke out with, "I have been a conceited fool, and now I know it. If I ever catch Derrick Sterling getting into a scrape of this kind again for want of paying attention to little things, or by thinking he knows more than anybody else, he'll hear from me, that's all." This was only a vague threat, but it meant a great deal, and from that day to this neither of these failings has been noticed in the young miner, even by those most intimately acquainted with him. Nearly two weeks after this, upon returning home one evening from his day's work in the mine, Derrick found a message from Mr. Jones awaiting him. It asked him to call that evening, as the mine boss wished to see and consult him upon business of importance.