what money making schemes do the king and the duke try in the river town

Huck rescues two humbugs known as the Duke and the King. Immediately, the two men take control of the raft and start to travel downstream, making money by cheating people in the various towns along the river. The Duke and the King develop a scam they call the Royal Nonesuch, which earns them over four hundred dollars. The scam involves getting all the men in the town to come to a show with promises of great entertainment. In the show, the King parades around naked for a few minutes. The men are too ashamed to admit to wasting their money, and tell everyone else that the show was phenomenal, thus making the following night's performance a success. On the third night, everyone returns plotting revenge, but the Duke and King manage to escape with all their ill gotten gains.

Further downriver, the two con men learn about a large inheritance meant for three recently orphaned girls. To steal the money, the men pretend to be the girls' British uncles.

Farther down the river, the King and Duke sell Jim into slavery, claiming he is a runaway slave from New Orleans.