Neville Longbottom: Right then, so what's the plan Harry?
Harry Potter: Okay, there's something we need to find, something hidden here in the castle, and it may help us defeat You-Know-Who.
Neville Longbottom: Right, what is it?
Harry Potter: We don't know.
Dean Thomas: Where is it?
Harry Potter: We don't know that either. I realise that's not much to go on.
Seamus Finnigan: That's nothing to go on.