The adventures of Huck Finn: Huck Finn, a 19th-century boy floating down the Mississippi River on a raft with Jim, a runaway slave, becomes involved with a feuding family, two scoundrels pretending to be royalty, and Tom Sawyer's aunt, who mistakes him for Tom. Tom and Huck: Tom and his friend Huck witness a midnight killing which leads to all kinds of difficulties when they swear not to reveal what they saw.