tells him that they will be careful and that will not happen again and he agrees to do it, even though Caroline disagrees. Elena's hallucinations continue and this time she sees Aaron where she realizes that he is dead. She believes that she is the one who killed him and starts getting crazy. She calls Damon to ask him if it is true that Aaron is dead and if she killed him. Damon does not know what to tell her. Elena believes that everyone is lying to her and hangs up on Damon. Damon knows that Elena is not fine and she will hurt herself and he wants to go to her. He calls Matt and manages to capture him, throwing his ring away. He threatens Jeremy that if he will not let him go to Elena he will kill Matt and Jeremy releases him. Luke (Chris Brochu), a college student, finds Elena and tries to help her. Elena does not remember him and she realizes that she met her when Katherine was in her body. She compels him and feeds him her blood to turn him so she can feed but she sees marks on his neck and realizes that Katherine was feeding on him. She stops and asks him to find Bonnie and Liv so they can break the seal and she can get out. Luke does exactly what she tells him and when Bonnie and Liv arrive, Elena asks them to undo the seal. Bonnie tries to explain her that it is better for her to stay there but Elena throws a stake at Liv and she tells her that if she will not break the seal so she can heal her, she will die. In the meantime, Stefan does what the travelers ask him to do and they locate his doppelganger in Atlanta while Enzo leaves with the antidote to take it to Damon and Elena. Caroline tries to make Sloan stop the ritual after they found out what they wanted but she wants to continue until they kill the doppelganger. Caroline puts a knife on her throat making her stop and release Stefan. Damon and Elena meet with Elena going crazy since she believes that she killed Aaron. Damon tells her that he was the one who killed him because he thought that she had broken up with him when Enzo appears with the antidote.