a new copy of Advanced Potion-Making from Flourish and Blotts, but switches the covers and gives back the new book. During his first class, Slughorn offers a small amount of Felix Felicis to the student who brews the best cauldron of the Draught of Living Death. Harry wins with the help of handwritten notes in the borrowed textbook, which, unbeknownst to him, had once belonged to Snape. When Ron falls victim to a high-strength love potion, Slughorn administers an antidote, but then nearly kills him with a drink of poisoned mead, not knowing that the bottle had been planted by Draco Malfoy in an attempt to kill Dumbledore. Harry later uses the Felix Felicis to help retrieve a memory from Slughorn that details the conversation between the professor and Riddle about Horcruxes as well as the possibility of creating more than one Horcrux. In Harry Potter and the Deathly Hallows, Slughorn briefly appears with other teachers assembling to fight Death Eaters. As Snape is now Headmaster, Slughorn has again assumed the post of Head of Slytherin. Though he is initially hesitant to join in the Battle of Hogwarts and is assumed to have evacuated with his house, he returns to the fray later on. It is revealed that he has not fled, but has recruited a large number of reinforcements to fight for Hogwarts. He then summons up the courage to duel Voldemort, alongside McGonagall and Kingsley Shacklebolt. Slughorn is played by Jim Broadbent in the film adaptations of Harry Potter and the Half-Blood Prince and Harry Potter and the Deathly Hallows – Part 2. Pomona Sprout Pomona Sprout is Professor of Herbology and the Head of Hufflepuff House. She is described as a dumpy little witch with flyaway grey hair who wears a patched, frayed hat and shabby robes, often covered in dirt due to the time she spends tending plants in the Hogwarts greenhouses. Sprout is introduced in Philosopher's Stone, but she plays no active role until Chamber of Secrets, in which she teaches her second year students to work with Mandrake plants. She is responsible for raising the Mandrakes to full maturity, at which point their juice is used to revive the petrified victims of the basilisk. Sprout subsequently appears in Goblet of Fire in which, as the Hufflepuff Head of House, she comforts Amos Diggory and his wife after the death of their son, Hufflepuff student