'Know Thy Enemy' Thoughts + 'The Last Dance' Promo

SPOILERS!

So lets re-cap...
Isobel turned up wanting to talk to Elena, Jenna's left
Caroline's been searching for disappering Matt
John invited Isobel in the Gilbert house, she tells Elena she can help
Bonnie, Jeremy and Damon go to a desserted house to gain all of the dead witches power
Katherine and Isobel are reunited; Isobel claims Klaus will give Katherine her freedom if they deliver the doppelganger and the moonstone
Katherine tries to convince Damon to whereabouts the moonstone is. She ends up finding it in a soap bowl. (Typical Damon xD)
Isobel sweet talks Alaric, then attacked/captured by a witch
Elena's at the awards to accept a check. Isobel shows up and attacks John, Katherine then captures Elena and pretends to be her. Meanwhile, shes unconious in the car with Isobel
Caroline finds Matt and tells him everything he wants to know. He wants her to make him forget whats happened, however, Carolines Mom put him up to this. He was holding vervaine and told her Mom everything she said
Bonnie's gained the dead witches power and has became much stronger
Isobel tricked Katherine as she is captured by a witch. Elena is brought to Isobel's gravestone. She tells Elena about her human side of her. She then gets a call from a witch saying to let Elena go; she's done everything he compelled her to do. She then takes off her necklace and burns in the sunlight, bye Isobel...
Bonnie claims if she uses too much of her powers it could kill her, knowing this already she wants to sacrifice herself to save everyone
Elena and John have a talk and she lets him in as her father
Katherine wakes up, whilst Alaric is being posessed. He walks towards her and it appears to be Klaus


Tell us your thoughts!
What's going to happen with Caroline with her Mom knowing everything?
Bonnie's became much stronger, will she be strong enough to help Alaric?
Isobel's dead, how do you feel about that?
What's going to happen with Katherine?




Plus 'The Last Dance' Promo www.youtube.com/watch?v=iT40yI…
Looks like a tearful episode, and whoaa!!! Is that Damon and Elena dancing? More Delena moments coming for us Also this looks like a Bonnie episode, we'll see her new and improved powers