Annalysa.

When they arrived, Katherine got out of the car with her 1864-ish attitude. The brunette knew Damon could see the difference, she was much more quiet and, somehow, innocent. The place was beautiful, everything so... sofisticated and with an ancient air. She smiled as they entered, seemingly naturally but heard Damon's words and nodded, she couldn't answer because some vampires came close to them and started talking about one thing or another with them. The whole night was going to be a circus. Katherine recognized one of the vampires. He was tall and with blonde short hair. His eyes were the colour of honey. Katherine smiled. The man was a vampire she'd met through centuries. "Fredrick. Pleasure to see you again.." Katherine said. "Miss Pierce. Pleasure's all mine.." Fredrick said, holding her hand and kissing it slightly. Katherine felt Damon's arm and smiled. "Fredrick, I'd like you to meet my husband, Damon Salvatore." She said , looking at Damon's face and smiling slightly, then looking back at the tall vampire.

After awhile of talking with new strangers and old friends, Katherine spotted the witch. She was rather old, wrinkles making her face more mysterious. The brunette locked her eyes on the woman and their gazes met. Music was slow and comfortable, violins were making the scene more ancient-ish and more likely a dream Katherine nodded slightly and looked at Damon, that was drinking champagne with his ice blue eyes lost in something... Katherine held his arm. "My lord, there's someone I want you to meet." Katherine said, her voice sounding soft but her eyes confident and telling him it was the time for meeting with the witch. The brunette sighed and they walked over the place where the witch, with a dark violet dress and long brown curls, stared at them and drunk champagne with another man. As she saw the 'couple' come closer, Annalysa  told the man to leave, leaving them alone in a empty spot of the ballroom. "You could make it." The witch said. "Of course. I want Klaus dead as much as you do, Annalysa." Katherine said, with a grin. "I'd like you to meet my husband, Damon Salvatore." The brunette added, looking up at Damon. Annalysa grinned, "So it wasn't one of your tricks, Katherine. I'm impressed." she said, Katherine felt like cracking up in laughter. It actually was one of her tricks... but Annalysa didn't need to know that little, tiny detail. "Of course not." Katherine said, titling her head to aside slightly and smiling innocently. "So, do you have what you promised?"  Katherine asked, still with her 1864 manners but with a little dangerous edge. "Of course, I want Klaus dead, right? Here I have it." Annalysa said, tapping one side of her violet dress and smiling cockily, but without giving the White Oak Tree pieces to Katherine or Damon. Katherine raised one of her brows, waiting, but Annalysa was looking at Damon. "Tell me, Mister Salvatore, since when are you married to Miss Salvatore?"  The witch asked with a grin, ignoring Katherine's gaze.