A long train of cars which had been captured was piled with wood, rails, and other combustibles, set on fire, and run into the tunnel. The sides and roof of the tunnel were supported by heavy woodwork, and the whole tunnel was soon a roaring mass of flame. The wood being burned away the tunnel caved in, and it was months before a train ran through from Louisville to Nashville. Morgan had effectually blocked the road. Highly elated with their success, the command returned to Gallatin, Mathews and Conway riding at the head of the column. To Calhoun was committed the care of the prisoners, and he brought up the rear. When about half-way to Gallatin, Calhoun heard the report of a single pistol shot in front, then a rapid succession of rifle shots. The head of the column seemed to be thrown into confusion, and the whole command came to a halt. Fearful that an attack had been made by a Federal force coming from Nashville, Calhoun gave orders to shoot down the first prisoner who attempted to escape, and prepared to resist any attack that might come. But no more firing was heard, and the column began to move again. Soon an officer came riding back and told Calhoun a story that interested him greatly. Mathews and Conway were riding at the head of the column, when, as it reached a cross-road, a peculiar sharp whistle suddenly pierced the air. Mathews’s horse gave a prodigious bound, unseated his rider, and dashed up the cross-road. Conway’s horse bolted, and in spite of Conway’s efforts, followed. A boy sprang out of the bushes into the road, and Mathews’s horse stopped by his side. He fired at Conway, hitting him in the shoulder. To save himself from being shot again, Conway flung himself from his horse. The boy sprang onto Mathews’s horse and rode away at full speed, followed by the other horse. An ineffectual volley was fired at the boy. Captain Mathews’s arm was broken by the fall. [Illustration: HE FIRED AT CONWAY.] “So Captain Mathews has lost his horse?” asked Calhoun, with a faint smile. “Yes, he will quit blowing now.” “And I have won twenty-five dollars; but I am sorry Mathews had his arm broken.” When Calhoun reached Gallatin, Captain Conway had had his wound dressed, and Mathews’s arm was in splints. Conway was in a towering passion. He blamed Calhoun for his ill-luck, saying if it had not been for him, Fred Shackelford would have been hanged as a spy. From this time he did not try to conceal his hatred of Calhoun. Captain Mathews took his misfortune more philosophically. “It was a blamed sharp trick on the part of young Shackelford!” he exclaimed. Then turning to Captain Huffman, he said: “Give that money to Lieutenant Pennington; he has won it. But I give you all fair warning I shall get that hoss back. My reputation depends upon it. Then to think that I, who prided myself on being one of the best hossmen in Morgan’s troop, should be thrown. Bah! it makes me sick,” and his face took on a look of disgust.