Board Thread:WARNING ALL USERS False Info\Spoilers/@comment-64.84.104.157-20130710040959/@comment-12011243-20130717120555

A fresh theory on the Darach has popped into my mind - Deaton said that the "wise oak" sometimes becomes the "dark oak". So, it's possible that someone who was good turned bad. For the most part, we really haven't seen anything going on at the school, so maybe someone there is the cause of this trouble - and that could be a reason that Lydia is always seen drawing the tree at school.