don't you know enough about it all to

"So that if it were not for the fact that he intends to gain immunity by telling what he knows, he would get into as much trouble as Mr. Welton." "Of course." "Well, don't you know enough about it all to testify? Weren't you there?" Bob reflected. "Yes, I believe I was present at all the interviews." "Then," cried Amy triumphantly, "you can issue complaint against _both_ Baker and Mr. Welton on a charge of bribery, and Baker can't possibly wriggle out by turning state's evidence, because your evidence will be enough." "Do you expect me to have Mr. Welton arrested on this charge?" cried Bob. "No, silly! But you can go to Baker, can't you, and say to him: 'See here, if you try to bring up this old bribery charge against Welton, I'll get in ahead of you and have you _both_ up. I haven't any desire to raise a fuss, nor start any trouble; but if you are bound to get Mr. Welton in on this, I might as well get you both in.' He'd back out, you see!" "I believe he would!" cried Bob. "It's a good bluff to make." "It mustn't be a bluff," warned Amy. "You must mean it. I don't believe he wants to face a criminal charge just to get Mr. Welton in trouble, if he realizes that you are both going to testify anyway. But if he thinks you're bluffing, he'll carry it through." "You're right," said Bob slowly. "If necessary, we must carry it through ourselves." Amy nodded. "I'll take down a letter for you to Baker," she said, "and type it out this evening. We'll say nothing to anybody." "I must tell Welton of our plan," said Bob; "I wouldn't for the world have to spring this on him unprepared. What would he think of me?" "We'll see him to-morrow--no, next day; we have to wait for Ware, you know." "Am I forgiven for doing my plain duty?" asked Bob a trifle mischievously.