"How will you do it?"
"I can make up for you."
"You can do it perfectly."
"To-night I will go to meet this siren."
"No, no, I will meet her."
"Yes, you shall meet her, but listen: I will go to meet her; you will be on my track. You will see who will follow me, believing that they are following you. We can arrange where, at a given point, I will disappear and you will reappear, and then when you go to meet this siren you will know just exactly how the ground lays. You will have the whole business down on them."
"Cad, this is a great scheme."
"It is, if we play it out right. This girl will be working you for an innocent; you can afford to give her a great deal of information, and—" The girl stopped short.
"Go on," said Oscar, "what will you be doing?"
"Why, man, between us, matching them at their own game, we will get the identities of every member of the gang. We will learn where their shops and where their plates are."