After Enzo St. John made his appearance back into Mystic Falls, Damon was slightly happy and now when Caroline was snooping around in Stefan's room curiously he saw a photo from 1864 and it was Stefan and Damon and you, Caroline was shocked to know that Stefan and Damon have a younger sister because they've never talked about her. That same day later at the Salvatore house you were there drinking some of Damon's old wine.