Adventures of Huckleberry Finn is a novel by Mark Twain. Commonly named among the Great American Novels, the work is among the first in major American literature. The book tells the story of “Huck” Finn (first introduced as Tom Sawyer’s sidekick in The Adventures of Tom Sawyer), his friend Jim, and their journey down the Mississippi River on a raft. Both are on the run, Huck from his drunk and abusive father, and Jim as a runaway slave.