She smiled, looking at him in a big-eyed, innocent way. "Why, I didn't say that was all. I have not known you long enough to tell. I am no gifted detective, and I cannot read your character at a glance." "Well, supposing we say the detective was a freak or a myth, and relegate him to the background." "That goes," she said. Then she clapped her hand over her mouth, with a little exclamation of dismay, quickly exclaiming: "That is dreadful! I completely forgot myself! You see, I have been away to school, and I caught on to some slang there, and I find I can't shake it, although mamma doesn't like to have me make such breaks." She paused, a look of the utmost dismay coming to her face, as if she just realized what she had been saying. It was with the utmost difficulty Frank restrained his laughter. At the same time he felt his liking and admiration for the strange girl growing swiftly. The little slip into slang seemed to add to her innocence, especially when followed by such utter dismay. "I am bound to do it occasionally," she said, after a few moments. "I can't seem to get out of the habit, although I have tried. I trust you will pardon me." "Certainly." "Thank you. I'll keep this card. I have none of my own with me. My name is Isa Isban." Somehow, that name was a shock to Frank. He could not have told why, to save his life, but there was something unpleasant about it. It did not seem to fit the girl at all. However, this feeling soon passed, and they were chatting freely in a short time. Their conversation drifted from topic to topic, and Frank was delighted to find his fair companion wondrously well informed on subjects such as are given little attention by most young girls. She could even talk politics rationally, and she rather worsted Frank on a tariff discussion. "You are beyond my comprehension," he declared, admiringly. "Where you ever learned so much is more than I can understand." "Do you fancy that young men are the only ones who know things? If you do, you are sure to find there are others---- Oh, dear! there I go again." Having become so well acquainted, Frank asked if she were bound for San Francisco, and, to his disappointment, she informed him that Carson City was her destination. The conductor came through the train for tickets. Frank had his ready, and the girl began searching for hers, but had not found it when the conductor came along. "Oh, dear!" she exclaimed, and Frank was about to offer to aid her, if she needed a loan, when she opened her purse and took out several bills, every one of them new and crisp, and of large denominations. "The smallest I have is fifty dollars," she said. "Papa gave me large bills, as he said they would not be so bulky." "I can't change a bill of that size," said the conductor. "I can," put in Frank, immediately producing his pocketbook. "I will break it for you."