30 Day Book Challenge: Day 4 - Day 04 - Your Favorite Book of One of Your Favourite Series

Harry Potter and the Half Blood Prince
I adore this book, it made me laugh, cry, feel sympathy, fear, love and a bit of hate.
So many emotions reared in ONE book can only equate to brilliance.
I love each of the books individually, but this one always stands out to me.

It was powerful stuff.