内容简介：
A strange thing had happened at the old fort during the still watches of the night. Even now, at nine in the morning, no one seemed to be in possession of the exact circumstances. The officer of the day was engaged in an investigation, and all that appeared to be generally known was the bald statement that the sentry on "Number Five" had fired at somebody or other about half after three; that he had fired by order of the officer of the day, who was on his post at the time; and that now he flatly refused to talk about the matter. Garrison curiosity, it is perhaps needless to say, was rather stimulated than lulled by this announcement. An unusual number of officers were chatting about head-quarters when Colonel Maynard came over to his office. Several ladies, too, who had hitherto shown but languid interest in the morning music of the band, had taken the trouble to stroll down to the old quadrangle, ostensibly to see guard-mounting. Mrs. Maynard was almost always on her piazza at this time, and her lovely daughter was almost sure to be at the gate with two or three young fellows lounging about her. This morning, however, not a soul appeared in front of the colonel's quarters.