Annalyn Miriam Cyrus

Elena is intrigued by the story of sad and secretive fellow student Aaron and, at the Whitmore Historical Ball, Elena shares a dance with Dr Maxfield, who has a disturbing message for her. Meanwhile, Stefan's doppelganger Silas demands that Damon commit an unthinkable act, leading to a violent confrontation.

The girls encounter trouble when they hop aboard the Rosewood Ghost Train for some Halloween fun; singer Adam Lambert performs "Trespassing" and "Cuckoo."

Despite Spencer's brave face, Aria, Hanna and Emily remain concerned about their friend's health; shocking revelations are revealed.