laughed. “But I won’t tell. You needn’t mind trusting me.”  

 “Oh, but Mr. Andrews was so insistent!” said Jennie, “He made Sadie and me swear that we wouldn’t breathe it to a soul.”  

 “Well, you didn’t tell,” said Peter. “I found it out by accident. Don’t mention it, and nobody will be any the wiser. If they should find out that I know, they wouldn’t blame you; they’d understand that I know Jack Ibbetts—me being in jail so long.”  

 So Jennie forgot all about the matter, and Peter went on with the kisses, making her happy, as a means of concealing his own exultation. He had done the job for which Guffey had sent him! He had solved the first great mystery of the Goober case! The spy in the jail of American City, who was carrying out news to the Defense Committee, was Jack Ibbetts, one of the keepers in the jail, and a cousin of the Todd sisters! 

  

  

 Section 20 

 It was fortunate that this was the day of Peter’s meeting with McGivney. He could really not have kept this wonderful secret to himself over night. He made excuses to the girls, and dodged thru the chicken-yard as before, and made his way to the American House. As he walked, Peter’s mind was working busily. He had really got his grip on the ladder of prosperity now; he must not fail to tighten it. 

 McGivney saw right away from Peter’s face that something had happened. “Well?” he inquired. 

 “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.”  

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