I just finished the book, though it took longer for me to finish than the other books. I have to say it was really good. Like really, really, really good. The progression of the story was great, and Gretchel grew a lot, and I really liked that. The end had two surprises, of which I was really shocked. I had guessed something similar, but not what actually was, so I was really surprised by the end of the book.
I don’t know when the next book will be released, or what it will be called, but I’m really excited for it now.