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Is it about Mark?
Mark Twain, author of The Adventures of Huckleberry Finn, published (pub leash) The Innocents Abroad, in 1869.
I think.
The title of the book written by Mark Twain is The Adventures of Huckleberry Fin. That is correct. But what about the rest of the clues? @Charlemagne1333 has been hinting at the meaning, but no awards until somebody completes the answer.