Hi. My name is Danielle and I am a HUGE Harry Potter fan. I am on year 2 right now but I am stuck. I am on the first level of it though. I have a problem. I got past the floo powder and stuff like that but I am still in Knockturn Alley and I am trying to reach the Ravenclaw stud or whatever it is but I can't get to it. There is a stairway but there is a dungeon door that is sparkley red. I need to get past it. How do you reach the Ravenclaw Stud?