"Yes."

"It would be better were you to make arrangements to go to my house by to-morrow night at the latest."

"Yes, I will."

"Where shall I meet you to-night?"

"Here. We have dined together; we will sup together."

"We will meet near here?"

"Yes."

A corner was named and a little later the woman, who did not give her name, and our hero separated. Later Oscar called upon Miss Lamb. He learned from her that she had met a lady at the typewriting school where Miss Lamb was a substitute teacher, and Miss Lamb had really referred the lady to our hero upon gaining her confidence, and having learned that she had need of a detective in a very delicate affair, the nature of which had not been revealed to Miss Lamb.

When the detective parted from Miss Lamb he was more and more convinced that the beautiful sister of the criminal was honest, and really intended to put him on a "lay" that would indeed advance him to the top rung of the profession.

An hour later Oscar met Cad, who wore a very serious look upon her face, and she waited for a little time, when with a glitter in her eyes she demanded: