/ Quizzes / Harry Potter and the Half-Blood Prince: Quiz II Harry Potter and the Half-Blood Prince: Quiz II by Shmuel RossSPOILER WARNING! If you have not yet read Harry Potter and the Half-Blood Prince, do not take this quiz! Question 1 (out of 10): Who uses the Felix Felicis potion? Harry Harry Ron and Hermione Harry Ron Hermione and Ginny Harry Ron Hermione Ginny and Neville