I don't even know how I persisted till the last book. It was quite disappointed. I have no doubt about Michael Scott's knowledge about different mythology - Greek, Irish, French, and blah blah blah. But I really doubt he don't exactly have that talent of portraying character and have a not-mediocre plot. Yup, perhaps most character are one-dimensional, I couldn't even see much different between Machiavelli or Billy, or Prometheus, or Mars, or Shakespeare. They purposely sounded the same, in a boring tone. They didn't promise a great deal of different characteristics. This book is like an old textbook of history, using the same old theme - good vs bad, but clearly in fact didn't describe the battle of human heart conflict, about decisions and choices. It just randomly throw in a bunch of superpower immortals and gods, everyone sounded formidable, but honestly had the same kind of power. 
 But enough talk about the defects of this book, I must agree it is a fine ending of a long series. I think big fan of Michael Scott will definitely love this termination.