They've made a huge mistake!
Thanks to The Vampire Diaries' crazy flash-forward in the season six finale, we know that when the show returns in October, Mystic Falls will be on its way to utter devastation. And in the first trailer for the new season, which E! Online is debuting exclusively, you can see just how our favorite supernatural enclave will fall to the ultra-evil vampire/witch-hybrid Heretics.
"We don't mess with them, they don't mess with us," Stefan (Paul Wesley) tells his brother, Damon (Ian Somerhalder), of the deal he's struck with his evil "lunatic" mother. (Damon's word, not ours! But accurate.)