Originals. They have all sorts of special skills.

In this clip from tomorrow night's episode of The Vampire Diaries, Katherine comes face to face with her doppelganger, who wonders the heck she got out of the tomb.

Don't we all. Despite Katherine's assurances that they're all on the same team, Elena and the Salvatores are understandably skeptical of their newly-freed visitor.

Can Katherine be trusted? What, if anything, does she know about Klaus? Watch Nina Dobrev converse with herself in this sneak peek from "The House Guest" below ...

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