You won't even get close to Perth. I still have to kill you for killing Katerina. Don't worry, I'll find you.
I'll just woo the new character. Then marry her to my stepson.
I'm already close to Perth. Ask his characters on both Atamara and Dwilight.
Also, yet again that was pure suicide on Katerina's part. She had plenty of other options. Put Brom to death, marry him, etc...