The Vampire Diaries2009

Damon Salvatore:
Alright, Klaus has 6 siblings. Rebekah is now with Klaus. There was one dead kid in the old world, one dead kid in the new world, which leaves Elijah and two others. Three sleeping originals, four coffins. So, who is in the locked box?

Stefan Salvatore:
No idea. But whatever is in there, Bonnie seems to think will help us kill Klaus. So, the sooner she can get this open, the sooner we will know if she's right.

Damon Salvatore:
[doubtful] Oh, you think the spirits of a bunch of dead witches that can make the coffins invisible would have figured out how to open one.