Trustee

Give the message to Zarida Zharova in Wellebell Preserve.

Remember Foul Dale?
Oh, it doesn't matter, anyway. You need to deal with a few things there while I'm studying this wretched demon. We need to know our enemy. Trust me, I know how to handle them, and this one is quite a peculiar fellow...
So.
Go to Wellebell and find my apprentice. She knows you, and you know her. Remember the Eclipse? Exactly.
This is a letter from me, it will bring her up to speed. Don't you dare peek inside!
Go now, don't dawdle.

I'm amazed you're not a frog. The Queen rarely jokes about curses. Or you really didn't read the letter?
Alright, I believe you.