When does this staircase appear in the films and Order of the Phoenix and Half-Blood Prince video games? --  Seth Cooper  owl post! 12:26, September 12, 2010 (UTC)

I was thinking this and the Potions Staircase could be the same, but I create a separate article for the latter because this one connects the Dungeon Corridor to a dungeon and the Potions Staircase connects the Viaduct Entrance to the Dungeon Corridor.
--RavenclawcrestThe Evening Prophet Ravenclawcrest (Owl Post) 12:48, September 12, 2010 (UTC)