I just started the forth book last night. Unfortunatley, I have read too many reviews and know where the story goes. Still, I think I will enjoy it as I have the others.
I enjoyed the fourth book. I feel that (and I hope I don’t ruin this at all), but, the ending feels a little too... “cliff-hanger-ish” if that makes sense. I feel that it could have ended better. But I believe you will enjoy the book.
I can’t wait to see how this book is translated into film. But, that’s in the future. Enjoy the book! ;-)