Is the plan set in motion?

When you approach the mirror, touch it with your hand and speak her name, 'Olivia', just like that. I trust you to make sure she doesn't ruin this party!

Hmm.

Now that Olivia has the letter, she'll be trapped in the secret room as soon as she walks through the front door. Once you enter the room, speak her name into the mirror, and the grand finale will begin!

So I say ''Olivia'' to the mirror?

Quite right! Now, go and gather some party guests and have your leader speak to me once you're all ready. Do not underestimate Olivia. She'll be furious when she realizes you tricked her! What a treat!

Ah, the mansion. That foul and sinster stench is gone. Cheers to you!

You have saved this party! I must say, I'm quite impressed. Suppose I should go let our guests know our little matter is taken care of.

Oh, am I forgetting something? Ah yes!

Please, take this party favor as a token of appreciation, but do come back for more... If you so dare to!