I was in the honeycombs and finished Sleater's quest where you explore the dragon ruins, kill the dragon's familiar and get some nifty stuff. Out of curiosity I decided to kill Sleater as well and got a great robe for my troubles
My only question is... will this act come back to bite me at some future time? Ie. do i need sleater for some later quest? I hope not... I really like that robe.