Goblet of fire

I am reading Harry Potter and the Goblet of fire. It is really good. I cant wait to read the half blood prince. I already know who the half blood prince is.........its Proffesor Severest Snape. He is one of my favorites. In the 3rd book he calls Hermione(Harry Potters friend) stupid girl. Hes pretty mean to Harry and his friends. He is also head of Slytherine. Harry,Hermione,and Ron(harrys best friend)are in Gryffindor.