Huckleberry Finn is a four-letter answer to the crossword puzzle, and it refers to the title character of the novel by Mark Twain. The novel follows the adventures of Finn, a young boy living in the Mississippi River Valley in the mid-1800s. The seven-letter answer, Whortle, is a type of berry that is closely related to the huckleberry. Finally, the fourteen-letter answer, Twaincharacter, is a reference to the author of the novel, Mark Twain, who is also the creator of the character Huckleberry Finn.