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