Like many other Harry Potter fans, I've just reread the sixth book so it will be fresh in my mind for the seventh and final installment in the series.
I enjoyed this one because it gives us further insight into many characters, particularly Snape and Dumbledore, and the romantic relationships were so much fun! I particularly loved the part where Luna is the commentator for the Quidditch match - she is a wonderful character. I enjoyed the way Bill and Fleur's relationship played out, and how Harry is finally permitted to take a more active role in fight against Voldemort (not that he hasn't played an active role in previous books, but here the adults are no longer trying to protect him by keeping him in the dark). Much is at stake now, and Rowling isn't pulling any punches.
Some questions came to mind as I was reading:
How on earth did Hagrid get wrongly accused in the Chamber-of Secrets matter back when he was a student, given the existence of veritaserum? Couldn't they have just used that to see what actually happened? In fact, wouldn't that have worked at the inquest when the Ministry of Magic tried to have Harry expelled from Hogwarts in the Order of the Phoenix?
Also, the existence of the time turners creates other questions - if characters can go back in time and change things, is anything that happens fixed and immutable?
And of course, there is the question that everyone's been asking since this book first came out - what on earth did Dumbledore know that made him trust Snape so implicitly? Was he just flat out wrong? He does say to Harry at one point that because he (Dumbledore) is cleverer than most, the mistakes he makes tend to be fairly colossal. Or is there something yet to be revealed?
Well, we'll find out some of these answers, maybe, in a few days...
For further reading on this subject, and for some well-thought-out conjectures on events in the last book, check out Nymeth's excellent reveiw of this same book, which she posted today, too!
Harry Potter and the Half-Blood Prince by J.K. Rowling (Scholastic, 2005)