No, no wish was used. It was just one of those things that was done...who can explain it? Certainly not I, when a Balnor (good lich) wants to cast a spell, Im certainly not going to step up and say "Umm...excuse me Mr. Lich, but according to the description of the spell you arent allowed to do that...sorry..." then he says "well what about power word kill?, Ill cast that and you tell me if it works like its supposed to, ok?" The whole adventure was way above our level anyway, we were average 5th fighting encounters designed for a 10th level party, and the DM warned us said he wasnt going to pull punches and he had no intention of us going down this path. But the paladin in me just cant pass up helping people in trouble, even when were way over our heads. I guess thats what makes a paladin a paladin and everyone else just adventurers. I guess the DM felt that the risk justified the rewards.