Considering how the book, The Emperor of Nihan-Ja, unfolded, this ending was an effective ending to not only the book, but for the series as well because, unlike books 1-9, it had an effective middle that hit its climax and gently wound down to the end. The novel in general was the best in the series because of its set plot that the story never deters from, witch helped make the ending as good as it was.
Unlike most endings to most series of books, the ending had very little to do with the previous books, leaving those who didn't read books 1-9 able to comprehend what happened without the help of spark notes, making this a satisfying ending for not only people who read the previous books, but also for people who didn't, but somehow still keeping it true to the characters. Will, the main character of books 1-9, was still himself, just with a different responsibility throughout the book all the way up to the end. Horace, a somewhat minor character in books 1-9, took the position of main character in this book, but he didn't become manipulated by the author to fit certain needs. Flanagan didn't go around bending the character into disorientation, but instead bent minor characters that were new to the book and didn't have any real purpose yet.
In conclusion, this was a good book with a strong ending and a wonderful way to end the series. I would suggest this book to anyone looking for a novel full of adventure. It truly wasn't a waste of my time to read it.