But sometimes an intolerable strain is thrown upon the machine--or rather, upon the most sensitive portions of it. Look at this boy, standing uneasily at the door of his study, with his fingers upon the handle. Outside, in the passage, a riot is in progress. It is only an ordinary exuberant "rag": he himself has participated in many such. But the Law enjoins that this particular passage shall be kept perfectly quiet between the hours of eight and nine in the evening; and it is this boy's particular duty, as the only prefect resident in the passage, to put the Law into effect. He stands in the darkness of his study, nerving himself. The crowd outside numbers ten or twelve; but he is not in the least afraid of that. This enterprise calls for a different kind of courage, and a good deal of it. Jackson is not a particularly prominent member of the House, except by reason of his office: others far more distinguished than himself are actually participating in the disturbance outside. It will be of no avail to emerge wrathfully and say: "Less row, there!" He said that three nights ago. Two nights ago he said it again, and threatened reprisals. Last night he named various offenders by name, and stated that if the offence was repeated he would report them to the Housemaster. _To-night he has got to do it._ The revellers outside know this: the present turmoil is practically a challenge. To crown all, he can hear, above the din, in the very forefront of battle, the voice of Blake, once his own familiar friend. With Blake Jackson had reasoned privily only that afternoon, warning him that the House would go to pot if its untitled aristocracy took to inciting others, less noble, to deeds of lawlessness. Blake had replied by recommending his late crony to return to his study and boil his head. And here he was, leading to-night's riot. What will young Jackson do? Watch him well, for from his action now you will be able to forecast the whole of his future life. He may remain mutely in his study, stop his ears, and allow the storm to blow itself out. He may appear before the roysterers and utter vain repetitions, thereby salving his conscience without saving his face. Or he may go out like a man and fulfil his promise of last night. It sounds simple enough on paper. But consider what it means to a boy of seventeen, possessing no sense of perspective to tone down the magnitude of the disaster he is courting. Jackson hesitates. Then, suddenly: "I'll be _damned_ if I take it lying down!" he mutters. He draws a deep breath, turns the handle, and steps out. Next moment he is standing in the centre of a silent and surly ring, jotting down names. "You five," he announces to a party of comparatively youthful offenders, "can come to the prefect's room after prayers and be tanned. You three"--he indicates the incredulous Blake and two burly satellites--"will have to be reported. I'm sorry, but I gave you fair warning last night."