Bonnie and Elena try to track down the former's mother in this clip from The Vampire Diaries. It's courtesy of the episode "The Ties That Bind."
Blood is thicker than death? Yikes. This Canadian promo for "The Ties That Bind" makes it clear that this Vampire Diaries episode will focus on family.
Bonnie has an idea of who can help open the locked coffin: her mother. Prepare to meet her on this episode of The Vampire Diaries.

The Vampire Diaries Season 3 Episode 12 Quotes

Damon: What's her damage?
Alarc: No damage.
Damon: Come on, Ric. It's a fact of life. A girl that smart, that hot? Damaged.

Bonnie: What's going on with you two?
Damon: We kissed. Now it's weird.