When the requirements are met!

Whilst trying to get away from the stress of being famous war hero's/heroines Ron comes up with the clever idea of going to the RoR (room of requirement) However whilst pacing three times and thinking I need a place to relax for a while Four Slytherin's also trying to get away but for entirely different reasons (namely getting away from Haters and or fangirls) are running towards the RoR and our four Gryffindor's Whilst thinking I just don't want to be hated by everyone. The door opens everyone runs in and then the argument starts being the only voice of reason Hermione turns to the door to drag her friends out with her when she realises its gone "Guys the door its gone" and that's when the voice of the RoR begins reciting the riddle.