Why?

I just finished Harry Potter and the Half-Blood Prince about forty minutes ago. I am so depressed. Some of the revelations are too shocking to believe. Well, you believe them but you were hoping for another thing to occur. I can't believe Rowling did what she did. I have grown to love all of the character in their own special way. Well, except for Voldy. I look forward to the seventh and final book in this amazing adventure.