Harry Potter and the Half-Blood Prince Chapter 9 Summary
How It All Goes Down
The Half-Blood Prince
Lots of stuff happens on the first day of school.
Harry discovers that he can, after all, take N.E.W.T. Potions, meaning that his goal of becoming an Auror is again attainable.
McGonagall gives Harry the list of students wishing to try out for the Gryffindor Quidditch team and tells him that he must arrange a tryout soon.
In Defense Against the Dark Arts (D.A.D.A.), Snape gives a chilling and unpleasant introduction. He has also redecorated the classroom with portraits of victims who suffered from the Dark Arts.
The first lesson is in nonverbal spells. Snape has everyone try to perform a jinx on a partner without speaking a word.
Snape sees that Ron, who's partnered with Harry, is struggling, so he shows him how it is done. But Harry instinctively speaks a Shield Charm so powerful that Snape is knocked off kilter.
Snape gives Harry detention next Saturday.
After D.A.D.A., Harry receives an invitation to his first private lesson with Dumbledore, which will take place the following Saturday evening. Guess he'll have to miss detention with Snape…
In Potions class, Slughorn gives the class a contest: they must make a Draught of Living Death potion, a complex undertaking. The student who mixes the best brew will receive a highly prized good luck potion, Felix Felicis.
Draco eagerly sets to work, clearly desperate to win the Felix Felicis.
Because Harry didn't think he would be able to take Potions due to his less-than-perfect O.W.L. results, he doesn't have a textbook.
Slughorn lets him borrow a used book from the cupboard until Harry can order his own.
It turns out this used Potions textbook has lots of helpful notes scribbled in the margins. Harry is happy he has such good luck.
With the help of his new textbook, Harry wins the context and, therefore, the Felix Felicis potion.
He is elated, but Hermione is not. She thinks that he's cheated and shouldn't follow the handwritten directions in the used textbook.
Harry discovers that someone has written in the cover: This Book Is the Property of the Half-Blood Prince.