I discovered another easy way to kill KB. I accidentally made it appear when I was level 12. Luckily, I was in the bandit camp in Broken Valley. I led it out into the open, so there were 7 or 8 soldiers attacking it, plus my creature, so I hung back with ranged attacks and kept pelting at it from outside it's reach. Took awhile, but it eventually went down. Got a ton of XP, too (thank you 3 points of wisdom).
I am so happy. Was not expecting it, but still glad I beat it (thanks to all the guards).
