This is the only "comprehensive edition" of Adventures of Huckleberry Finn. Which means: long missing and believed lost for good was the first half (over 600 pages) of Twain's final manuscript of the book. Some years ago it was found, by chance, in a trunk in an attic in California, then reunited with the other half in Buffalo. Upon reading it was found to contain materials that had been excluded by the publisher -- therefore from first edition onward the book was actually not wholly as Twain intended. Those portions are included in this edition (and in a more scholarly Mark Twain Project/Library edition), which makes it a different work than the heretofore "standard" edition/s. For that reason it is not only a different edition, but also a different book, therefore should not be combined with the existing muddle.
