Tonight's episode of the "Vampire Diaries" will bring in new surprises, especially about Stefan's horrid past.

In the third episode of the third season of "Vampire Diaries," Elena and Damon will be on Stefan's trail when he and Klaus went to the windy city. This untimely visit will bring nostalgia to Stefan.

The two will arrive on Stefan's old apartment where he lived in 1920s when he was still a full-pledge, roaring vampire. The apartment was untouched for over 80 years. Elena will find things that she should not be messing with.

Stefan will reunite with a girl who has been interested in him for a long time. Is she a friend or a foe to Elena?

Jack Coleman will guest star tonight as Caroline's dad. Moreover, watch the confrontation between Klaus and Damon.

Watch the videos below for the preview of tonight's episode. "The End of the Affair" will air tonight at CW.

Vampire Diaries Novel Series

This October marks the release of the first book of the latest The Hunters trilogy, Phantom. Famous author L.J. Smith left us with a ghostwriter who wrote the book. The first book narrates the story of Elena after she and her friends have saved the town from a demonic spirit. However, are they really safe? Elena knew better. Found out the new twists as Phantom will hit the stores next month.