Edit: Damn it. Sorry for the grave dig. I was just reading through the guides.
Reminds me of the time I was getting KSed in Sea of Greed. My brothers were partying with me and we were fed up with the KSer.
So we went into Echo Cave, and started attacking a Magic Book, I don't remember the exact name, but as soon as the KSer scored a hit we stopped attacking. Smoked his ass in 10 seconds flat. xD
Then a Cleric came running through and Resed him.
Thank God the KSer decided to follow the Cleric. xD