The Story of Horace Slughorn - Horace Slughorn was was best known as potions master at Hogwarts and also served as head of Slytherin house. Horace was sorted into Slytherin during his time at school and even at such a young age, he would try surround himself around important people. Once he left school, he quick re-joined as the potions master.

Listen to the full story of Horace Slughorn in this episode.