There was to have been a dance at the Assembly room Tuesday evening, but no one seemed to feel like dancing even among an indomitable few of the lassies and younger officers with whom, lads and lassies both, Sandy Ray had been vastly popular. The night wore on, dark, overcast, with the wind blowing fitfully from the Sagamore, slamming doors in resounding hallways and carrying the watch calls of the sentries weirdly over the eastward prairie. Earlier in the evening little groups appeared in some few of the verandas, but gradually broke up and went within doors long before the signal "Lights out." The officer of the day and the adjutant, under instruction from the post commander, had been questioning the three worthies who had been out the night before about the time of the alleged assault on Captain Foster. To a man they stoutly maintained that the signs and scars of battle, borne by one or two of their number, were due entirely to the free-for-all affair that occurred at that disreputable dive southwest of Silver Hill, some four miles away from the post. Virtuously were they indignant that anyone should suppose that they were in any way concerned in so abominable a transaction as the "doing-up" of an officer of the army who so recently had been the guest of their honored major. But two of them were troopers with shady records, men who had been but a short time at the station, and one of these had formerly served an enlistment in Dwight's old regiment, the --th. The adjutant was of opinion that he must have known Foster in those days and might well have been one of quite a number of men, none of whom liked and some of whom hated the imperious and abusive lieutenant. The --th had had few of Foster's stamp since the days of Canker and Gleason, and his case was therefore the more conspicuous. The two officers were talking of this as slowly they strolled homeward up the northwest side of the parade, when, faint and wind-buffeted, the call of the sentry at the main gate caught their ears. No. 2 wanted the corporal and No. 1 promptly echoed, although already the corporal was going on the jump. There was a ring and vim to the cry that told its own story. The sentry saw something that demanded instant attention. It was not half a minute before the corporal came racing back to the guard-house, nor a full minute before the bugler of the guard came chasing in pursuit of the officer of the day. "A fire, sir," he cried, "'way out beyond the Flats!" Together the officers hastened eastward across the parade, and even before they reached the gate the cause of the alarm became visible. The low-hanging, swift-driven clouds blackening the valley were taking on a lurid glare, and, once at the gate the fire could be distinctly seen. "Well, if that isn't a blessing!" cried the adjutant gleefully. "It's Skid's old hog ranch, as sure as you're born!"