"I'll find him if he is there!" exclaimed Knox, with an expression of determination on his face.

"I think you will find a small force of the enemy near the bridge, Knox. Don't fall into any trap; I will have at least half a company up there in a few minutes."

"I will keep my eyes wide open, Major," replied the Kentuckian, as he rode off towards the bridge.

"Captain Gordon, send Lieutenant Belthorpe with half your company to the bridge. Just beyond the camp he will find a practicable road up the embankment. He will be in abundant season to receive the force approaching by the hill road."

The captain saluted his superior, and made no reply. It was evident enough to the commander that Captain Dingfield had been on the alert, and that he intended to destroy the bridge even in the face of, and under the very eyes of, the Riverlawn Cavalry, of double his own strength, though he might not be aware of its numbers. If Major Lyon did not manifest his chagrin and annoyance at the present situation, he felt it none the less.

He realized that Captain Dingfield had been amusing him all day with the prospect of a fight, while he was carrying out his plan for destroying the bridge. It was all plain enough to him now, and he wondered that he had not placed a guard on the bridge early in the morning. It looked now like a serious omission; but he hoped it was not too late to remedy the defect in his plan. What had become of Deck was a mystery he could not fathom.

After the hauling down of the flag, the major had been too fully occupied elsewhere to think of the bridge, and he had not even glanced at it till he made the signal. It had not occurred to him that the structure could be in any danger while his squadron was in sight of it. He watched the force of Lieutenant Belthorpe as they hurried by the road to the point where they could ascend to the track, and he believed he had done all that was necessary to save the bridge from destruction.

Captain Truman was approaching the cross-roads with his company, and the attack of Captain Dingfield might be expected very soon. It was necessary to make a new arrangement of the troops. The major had already formed his plan, and he wheeled his horse to join Captain Gordon and give his orders. At this moment an explosion rent the air, which made a great deal of noise, though it had not the volume of an earthquake.

Major Lyon turned his head, expecting to see the bridge a wreck, with the fragments of it flying in the air. He looked for Knox and his companions, who had been ordered to climb upon the bridge without waiting to ride around to the embankment. They had not yet mounted the abutment, and were then securing their horses near the bank of the creek. But the bridge was not a wreck, though some timbers and planks had been elevated in the air; but most of the matter that was thrown up appeared to be earth and stones.

But where was Deck? Even with the pressure of duty upon him, he could be excused for thinking of his son, who had so strangely disappeared. He watched the movements of Knox and his men. If they had been a couple of minutes later they might have been hurled from the high structure by the force of the explosion. But he was greatly relieved when he saw that they were not harmed, or at least not disabled; for he saw the tall Kentuckian running with all his might to the abutment, followed by his five men. They were all there, and they began to climb up the wall.