"Huckleberry Finnin (Tom Sawyerin toverin) seikkailut" by Mark Twain is a picaresque novel first published in 1884-1885. Narrated by young Huck Finn, the story follows his daring escape from his abusive father and his journey down the Mississippi River with Jim, a runaway slave. Together they encounter con men, feuding families, and dangerous situations while fleeing toward freedom. Huck faces moral conflicts about helping Jim escape, challenging the racist attitudes of antebellum Southern society through their unlikely friendship.