Attention Harry Potter fans How much do you REALLY know about Harry Potter and the Half Blood Prince? Are you the ultimate expert on the boy who lived? Well now you can find out. See just how many questions you can answer correctly. Get the answer right and you will get some trivia about Harry Potter & the Half Blood Prince that even YOU might not know. See how many you get right. Play against your friends then check your scores. Are you a Muggle or a Wizard? Find out today with this fun Harry Potter quiz and trivia book.