Master Dufner:
Good! I think it'd be easier to investigate if you slayed a few of the mutant magical creatures first. But... once the investigation reaches a certain point, you'll run into problems that you can't handle by yourself.
I'll introduce you to someone that may be of help to you. His name is Hawkeye, he acts the part of a common master, but he was once a great Assassin. He was nicknamed 'Hawkeye' for never failing to achieve his mission or eliminate his target. Take this letter to him and request his aid.
I have written the identity of this person in the letter, so keep that in mind. Don't tell anyone about this, your utmost discretion is needed, and be careful.