Young Huck Finn can't get along with the Widow Douglas' attempts to "sivilize" him or the smothering discipline that she and her sister serve up at home. So when his drunken, good-for-nothing father turns up and kidnaps him, Huck takes his cue to leave - and escapes to Jackson's Island.
There he meets runaway slave Jim, and the two become firm friends. Their bond of trust holds strong as they travel down the Mississippi river on a raft - witnessing misdeeds and murder along the way - and are separated, captured, and re-captured before continuing in their bid for freedom.
Full of tension, excitement, comedy and drama, Twain's sequel to The Adventures of Tom Sawyer is also regarded as a comment on the slavery and colour prejudice inherent in the mid-19th century American South.