The last novel attempted by Mark Twain, working on it sporadically from 1897 to 1908. He wrote numerous versions of the story, each incomplete and featuring a character called ''Satan'' or ''No. 44''. Containing a serious social commentary concerning the ideas of morality and the ''damned human race''. It is a veritable must-have for fans and collectors of Twain's fantastic work and would make for a great addition to any personal library.