"I am quite sure that I would," returned the girl confidently, "his features are too indelibly fixed in my mind for me to make any mistake about it." "Have you said anything to Mr. Pearson about this?" "Yes; as soon as we were out of the vault, I said to him--'One of those men was the man who left the valise and the same one I saw in the office the other day.'" "What reply did he make." "He appeared to be doubtful, and simply said, 'Is that so?'" "Very well, Miss Patton," said the detective at length, "we will look fully into this matter; but in the meantime, I particularly desire that you will say nothing to any one about what you have told me to-day. It is very necessary that a strict silence should be preserved upon this point." The young lady cheerfully promised compliance with this request, and in a few moments the detective, after thanking her for her kindness in seeing him, arose and took his departure. As he strolled back to the hotel, he revolved the information he had received carefully in his mind. He had also obtained from Miss Patton a description of the two men, and found that they agreed very nearly with what he had learned from Mr. Pearson. He went to his room immediately, and prepared a report of all that had transpired during the morning, carefully detailing all that he had heard relating to Mr. Pearson's alleged intimacy with one of the robbers, and of the successful attempt he made to extricate himself from the vault, by means of the ten-cent piece. After concluding his relations, he requested the assistance of another operative, in order that they might scour the country round about, in the hope of finding some clues of the escaping robbers. On the next morning, operative Howard Jackson, a young, active and extremely intelligent member of my force, arrived at Geneva, and placed himself in communication with John Manning, for the continuance of this investigation. When Manning's reports were duly received by my son, William A. Pinkerton, the superintendent of my Chicago agency, he gave the matter his most careful and earnest attention, and as he finished their perusal, he formed the opinion that young Pearson was not entirely guiltless of some collusion in this robbery. The more he weighed the various circumstances connected with this case, the more firm did this conclusion become, until at last he experienced a firm conviction that this young man knew more about the matter than he had yet related.