The Vampire Diaries S02E17
Know Thy Enemy
Plot: Jeremy is delighted to have Bonnie restored to her powers, yet worried when accompanying her and Damon to the house where a 100 witches were burned to gather enough power to undo the moonstone's curse. Elena's mother Isobel Flemming's return startles her and even Katherine, as turns out doing Klaus's bidding for a gruesome 'prize'. John Gilbert confesses more wrong choices, also at Jenna's expense, yet unlike furious Alaric, Elena ends up choosing to keep her father in her life.
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