How do Jim and Huck spend their time now? (CH 17-19)

Once they begin traveling down the river on the raft, they see two men running along the shore, running from something. They take these two men aboard, and listen to the lies that the men tell. Although the men are nothing more than a couple of con men, Huck and Jim call them the Duke and "Your Majesty" since the claim i that he is the long-lost heir to the throne of France.