At the present time his father was in Washington, and he could not have neglected to close the door. He had been to the railroad station to meet the last train, thinking it possible that his father might return, and he was confident that he had been the last to enter the house. He was very sure that he had not left the door unfastened, and this assurance made him confident that some person had entered the house. The noise at the door of his chamber was not an illusion or a dream: though it had been made by closing rather than by opening it, or he would have been likely to find the intruder in his room when he lighted his lamp. It seemed to him to be a matter of course that the midnight visitor had come into the mansion for the purpose of plundering its occupants, or of securing the valuables it contained. Putting his lamp on the table, he went out upon the veranda, and looked all about him. The grounds were very extensive, and a broad avenue led to the street. It was very dark; but as he cast his eyes in the direction of the grand entrance to the estate, he discovered some dark object in motion; but he lost sight of it in a moment. It was a living being, or it would not move, and he was certain that he had made a discovery. Then two regrets flashed through his mind as he stepped down from the veranda; the first, that he had not put on his shoes before he left his chamber, and the second, that he had not taken his pistols, for a bullet would travel a great deal faster than a barefooted officer, even of the United States Navy. But he ran with all his speed to the street, to the great detriment of his uncovered feet. He reached the grand entrance in an exceedingly short space of time; but he might as well have been in his chamber, for no ruffian, robber, or Confederate spy could be seen. He had no means of knowing which way the intruder at the mansion had turned, to the right or the left, or whether, like the timid colored gentleman in a trying situation, he had taken to the woods. Christy walked up the street, and then down the street; but the underbrush had recently been cut in the grove, and he did not venture to explore it without any protection for his feet. He peered into the gloom of the night with all his eyes, and listened with all his ears for over an hour; and then, watchful and careful officer as he was, there were five hundred chances against him to one in his favor, of finding the intruder, and he reluctantly returned to the mansion.