“We’ll search him,” was the short answer. The work commenced at once. Slipped into one of the man’s boots was a slip of paper, which, on being unfolded, was found to be a Confederate pass, signed by General Longstreet. There was also another paper, which the corporal perused with even deeper interest. “A spy!” he murmured. He turned to Louis. “Your name?” “Louis Rockford, sir.” The corporal made a note of it. Then Louis was sent back to his regiment, and the spy was taken to general headquarters. Here it was at last ascertained that his name was Caleb Fox. It was surmised that he had been sent over to learn whether the Unionists contemplated an attack, or if they thought of settling down to a siege. He would speak but little, and was placed under heavy guard until some of the higher officers could question him further. “That’s a feather in your cap, Louis!” cried Harry, as they were eating breakfast the next morning. “You’ll hear from headquarters about it sooner or later, see if you don’t.” “It’s odd that we should capture one of Sam Jacks’s crowd,” mused Louis. “Doesn’t it seem to prove that a good part of the rebels who were up around Manassas have moved down here?” “If they ain’t down here now they will be pretty soon,” put in Moses Blackwell. “You can bet they won’t give up their main stronghold without the toughest kind of a struggle.” “One thing is certain,” continued Harry. “This man won’t bother you any more.” “Do you think they’ll shoot him?” said Louis, with a shudder. “Of course they’ll shoot him. It’s the fate of any spy that is captured.” “I shouldn’t like to have his blood on my head, Harry.” “He brought his fate on himself, Louis--you had nothing to do with that. He knew just what to expect when he left the rebel breastworks in the rain and darkness and tried to worm his way over here. And more than that, the fact that he had his big pistol ready for use, shows he was prepared to sell his liberty dearly, if given half a chance. If you had advanced upon him openly and alone he would have shot you down and run for it, as sure as fate.” That afternoon Louis was called up before the general of the corps, who questioned him closely. Then the prisoner was brought in, and Louis for the first time learned his name. As Louis went out, he passed close to Caleb Fox, who scowled at him viciously and whispered into his ear: “You skunk! I’ll git squar--ef I live.” To this Louis made no answer. But the words haunted his mind for a long time. The day was destined to come when he would remember them even more vividly. CHAPTER XVIII ACROSS THE POTOMAC ONCE MORE To go back to Andy at the time he was slowly recovering from a bullet wound in his shoulder, inflicted by a Union soldier at the time of his capture during the battle of Ball’s Bluff.