1. Run away. Hide. And never return.
2. Again try to get revenge on the group of people who wanted to kill you.
Needs some proper way to pick a "counter"-quest, like talking to the original quest giver, choosing some talking point.
Else, one may try hooking reading the letter and automatically pick up / show some alternative (cata+ style self-quests).
This quest could be good. The "taking a walk" should be automated, non-skippable, playing an animation of two people walking, then suddenly stabbing + screen fading to black + teleport + fade back in + stunned -> recovery sequence. Again, some sort of self-quest would be the best way to continue.