Anais was, as a foreign guest of the court yet less important to proceedings given the large contingent from the home countries, seated towards the back of the venue, in the last quarter of pews before those who were standing had been placed. She didn't mind so much - being tall, she could still see everything she needed to - and was thinking about whom she might talk to at the ball afterwards when the attackers struck.
Highly powerful and militia trained, the Quebec party sprung into action before many of the others had had time to react. The Princess herself had gone for her own wand, but had cast barely a spell or two in the attackers' direction before a bodyguard on one side and her Private Secretary on the other had grabbed her arms, forcibly moving her along the pew in the direction of the only exits. Wriggling out of their grasp as if her life depended on it, she yelled her frustration as her various guards and assistants were able to stay behind and help the fight, yet she was taken towards the Floo. A last gesture was that with her one free arm she was able to give her tiara a hefty throw - Chasing skills were useful in real life after all, it seemed - which clunked one of the dark robed villains in the head.
Before she knew it, she was whisked away, finding herself in her own quarters.