Oh, Katherine. You body-switching survivor, you...

On The Vampire Diaries Season 5 Episode 11, this blood-sucker-turned-human was on her death bed. She was nearly gone. She was actually earning the sympathy of viewers and former enemies.

And then she had to go and ruin everything by learing a trick of her Traveling daughter and jumping into Elena, leaving her doppleganger on the bed to die. So. Not. Cool.

Where will things go on next Thursday's The Vampire Diaries Season 5 Episode 12? Not totally according to plan for Nadia and Katherine. They'll need Elena's corpse to make the change permanent and... well... that could be a problem, as Stefan says here.

Watch The Vampire Diaries online to catch up on anything you may have missed and check out the trailer for "The Devil Inside" now.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.