“I’ve got it!” exclaimed Peter.

“Got what?”

“The name of the spy in the jail.”

“Christ! You don’t mean it!” cried the other.

“No doubt about it,” answered Peter.

“Who is he?”

Peter clenched his hands and summoned his resolution. “First,” he said, “you and me got to have an understanding. Mr. Guffey said I was to be paid, but he didn’t say how much, or when.”

“Oh, hell!” said McGivney. “If you’ve got the name of that spy, you don’t need to worry about your reward.”

“Well, that’s all right,” said Peter, “but I’d like to know what I’m to get and how I’m to get it.”

“How much do you want?” demanded the man with the face of a rat. Rat-like, he was retreating into a corner, his sharp black eyes watching his enemy. “How much?” he repeated.