HARRY POTTER AND THE HALF BLOOD PRINCE: by J.K. Rowling:

Harry Potter is a sixteen year old that goes in a magic school at Hogwarts. There he finds a secret book of potions with written on it "The Half Blood Prince". Then Silente tells to Harry that once Voldemort divided himself in six parts and with Harry's approvation they went to find them. Once there they saw a cup with a liquid inside and Silente ordered to pour it all in his mouth and afterwards he fainted. Harry takes the object that is inside, puts on his invisibilty mantle and brings Silente to Hogwarts. There they find professor Snape with some followers of Voldemort. Suddenly they kill Silente and then he runs away. Then Harry manages to free himself and run after him, they fight and Snape confesses that he was the Half Blood Prince and runs away. Everyone is sad and don't know if the school will open again.