I hate it when a good book leaves you hanging.
Don’t get me wrong, I loved Heroes of Olympus: The Son of Neptune. I just don’t like that feeling you get when you’re so into the story and it gets cut off too soon. Worse, by the time you get to read the next book (which by the way doesn’t exist yet and remains to be written), you would have forgotten what the previous one was all about. (Note to self: Re-read Heroes of Olympus: The Lost Hero and make a review.)