"First off, let me introduce the newest member of our staff. Horace Slughorn." He turned towards where said professor was seated. Professor Slughorn rose from his seat as everyone clapped. Dumbledore turned back to face us. "Professor Slughorn has agreed to resume his old post as Potions master. Meanwhile the post of Defence Against the Dark Arts will be taken by Professor Snape." There was a surprise amongst the students. There were several claps, mainly from Slytherin. But there were several Ravenclaws, including Luna and myself who clapped along with.