Although she was in the shadow of the cab, Patsy thought that it was the one whom he had been watching while at the restaurant door, and who he had seen put on a wig. They went to the cab, and the woman, addressing Chick, said to him: “I want to speak with you a moment, and alone.” Hearing this, Patsy stepped aside and Chick went up closer. “I know who you are,” said the woman. “But I don’t know who you are,” answered Chick. “It is not necessary that you should,” replied the woman, “and, as a matter of fact, I don’t intend that you shall.” Chick looked up at her quickly and saw that the woman was earnest in her manner, by no means coquettish or trifling. He said: “What is it you want to say to me?” “I know that you are one of the assistants of Nick Carter,” the woman said. “Your name is Chick, and I know that you are looking for Mr. Ellison, who disappeared so suddenly from the Sanborn house to-day.” Chick thought rapidly, and concluded that more was to be gained in admitting the fact than in denying it. “Won’t you enter this cab and talk with me?” said the young woman. Giving a signal to Patsy which meant that Patsy was to follow wherever he went, Chick called out, loudly: “Good-night, old boy, I’ll see you some time to-morrow.” He climbed into the cab and took the seat as the young woman made way for him. Patsy turned after calling back a good-night and walked hastily up the street until he reached a dark doorway into which he quickly dodged, from which point he watched the cab. “Tell the driver,” said the young woman, “to drive away from here.” “Where?” asked Chick. “Anywhere, so that we will not be so conspicuous.” Chick told the driver to cross Broadway and, driving to Sixth Avenue, to go down that avenue until the _Herald_ Building was reached. Having done this, he asked the young woman what was the meaning of her movements. “I want you to tell me,” she said, “whether you have found anything about the whereabouts of Mr. Ellison.” “No,” replied Chick, “we have only just begun the search.” “Do you know why he so suddenly disappeared?” “No,” replied Chick, “if we did, we would not be long in finding where he is.” “You will find it difficult to find him. You are following up the Ladew woman for that purpose.” Chick turned to look at the woman, but her head was turned away, as if she was in deep thought. She continued: “I don’t think you will find much in following her up. He has broken with her.” “Then he knew her and was in relation with her?” asked Chick. “It was only a foolish flirtation on his part,” said the young woman, and Chick noticed that there was a great deal of bitterness in her tone. She paused for a moment or two, and then went on: “The Ladew woman is an eccentric person, and she followed him up so that he could not get away from her. But he had to break when his marriage with Miss Sanborn approached; there was a great row.”