So Jones had withdrawn his yarn from circulation. Kennedy's interest in detective work waned after his interview with Walton. He was quite sure that Walton had been one of the band, but it was not his business to find out; even had he found out, he would have done nothing. It was more for his own private satisfaction than for the furtherance of justice that he wished to track the offenders down. But he did not look on the affair, as Jimmy Silver did, as rather sporting; he had a tender feeling for the good name of the school, and he felt that it was not likely to make Eckleton popular with the other schools that went to camp if they got the reputation of practical jokers. Practical jokers are seldom popular until they have been dead a hundred years or so. As for Walton and his colleagues, to complete the list of those who were interested in this matter of the midnight raid, they lay remarkably low after their successful foray. They imagined that Kennedy was spying on their every movement. In which they were quite wrong, for Kennedy was doing nothing of the kind. Camp does not allow a great deal of leisure for the minding of other people's businesses. But this reflection did not occur to Walton, and he regarded Kennedy, whenever chance or his duties brought him into the neighbourhood of that worthy's tent, with a suspicion which increased whenever the latter looked at him. On the night before camp broke up, a second incident of a sensational kind occurred, which, but for the fact that they never heard of it, would have given the schools a good deal to talk about. It happened that Kennedy was on sentry-go that night. The manner of sentry-go is thus. At seven in the evening the guard falls in, and patrols the fringe of the camp in relays till seven in the morning. A guard consists of a sergeant, a corporal, and ten men. They are on duty for two hours at a time, with intervals of four hours between each spell, in which intervals they sleep the sleep of tired men in the guard-tent, unless, as happened on the occasion previously described, some miscreant takes it upon himself to loose the ropes. The ground to be patrolled by the sentries is divided into three parts, each of which is entrusted to one man. Kennedy was one of the ten privates, and his first spell of sentry-go began at eleven o'clock.