The sky was still blocked with clouds and at eight o'clock it was black dark, so Hartigan left the selection of the trail, as a matter of course, to Blazing Star. From the time of leaving the last light in Cedar Mountain till they drew up under the first lantern at Fort Ryan, Hartigan never saw the horse he was riding, much less the road he was riding on: nor had he touched the reins or given by word or pressure of knee any signal of guidance. The night was too black for his senses, but he knew he was committing his way to senses that were of a keener order than his own, and he rode as a child might--without thought of fear. He could feel it when they were going down into the canyon of the Rapid Fork, and at the bottom of the slight descent he heard the rush of waters, and noted that Blazing Star lowered his head and snorted softly more than once. He heard the tap of the hoofs on the timber of the bridge, and then they ascended and came in a little while to the lantern at the door of the gymnasium in the barracks. "Hello, Hartigan! Where in the world did you come from?" was the cordial greeting of Colonel Waller. "Where could I come from but Cedar Mountain?" "The deuce you did." "Why not?" "How did you cross the creek?" "By the bridge." "Oh, no, you didn't." "I surely did," said the Preacher. "Well, you didn't, because there isn't any bridge. It all went out last night," was the Colonel's astounding answer. "Be that as it may," said the Preacher, "I have come here direct from Cedar Mountain. I left at eight o'clock and here I am, arrived by the road at eight forty-five; and I crossed the Rapid Fork of the Cheyenne on the bridge. I didn't see it. I didn't see my horse from start to finish. I didn't see one inch of the road; but I heard it and felt it. Anyway, I'm here." That night the Preacher stayed at the Fort, but he was up at daylight. So were the officers, for they had laid bets on this matter. They came to the little canyon, the river, and the place of the bridge; the bridge was gone; but, yes, surely there was one long stringer left. It had been held by the bolt at one end, and the officer charged with repairing the bridge had swung it back into place that very afternoon, and made it firm to serve as a footbridge, though it was barely twelve inches wide. There, plainly written in the soft earth, was the story of the crossing. Blazing Star had descended the bank, and had missed the narrow stringer by a yard. He had nosed along till he found it and had crossed over on that with the delicate poise and absolute sense of certainty that would have been destroyed had the rider tried to give a guiding hand. And the end would have been sure death had Hartigan not trusted to his horse so utterly. The best of steed and man had thus begot a creature on a higher plane--in spirit and effect the centaur of the ancient tale. CHAPTER XXIV Red Rover