The Confederates succeeded in only turning one gun and training it on the little engine fast disappearing in the darkness. The gunner, however, who fired that gun came nearer putting an end to the expedition than all the others. He dropped a shell in the air directly over them. It shattered the roof of the caboose, wounded the fireman and blew out both windows, but almost by a miracle left the machinery still uninjured. The adjutant laid the fireman on the jumping, bounding floor of the cab and under his faint instructions fired the engine in his place. As he was heaping coal into the open fire-box with all his might, there came a deep groan from the wounded fireman. "Try and bear the pain, old man," shouted the engineer over the roar of the engine. "We'll be safe in a few minutes if nothing happens." "Something's goin' to happen," gasped the fireman. "Listen!" Far back over the track came a pounding and a pushing. The engineer shook his head. "They're after us," he said to the adjutant, "and what's more they're bound to get us unless we can throw them off the track." "Can't we win through with this start?" said the captain. "No, sir," said the engineer, "they've got an engine that can do ten miles an hour better than this one and beside that, they've got a car to steady her. I don't dare give this old girl one ounce more of steam or she'd jump the tracks." Before long far back around the curve came the head-light of the pursuing engine like the fierce eye of some insatiable monster on the track of its prey. Steadily she gained. Once when they approached the long trestlework which ran for nearly a mile, the sound of the pursuit slackened off as the lighter engine took the trestle at a speed which the heavier one did not dare to use. Bullet after bullet whizzed past the escaping engine as the soldiers in the cab of her pursuer fired again and again. Both engines, however, were swaying too much to allow for any certain aim. Finally one lucky shot smashed the clock in the front engine close by the engineer's head, spraying glass and splinters all over him. Now the front engine had only ten miles to go before she would be near enough to General Stockton's lines to be in safety. The rear engine, however, was less than a quarter of a mile away and gaining at every yard. "How about dropping some of the fire-bars on the tracks?" suggested the captain. "We've got enough coal on to carry her the next ten miles. We shan't need the fire-bars after we get through and we certainly won't need them if they capture us."