I am on the last mages guild quest and I have found the king of worms but no matter what I do I cannot touch him or harm him in any way. And I cannot find that supposed switch he is standing next to that is supposed to set off the claw traps. My magic wont work and my weapons wont work. When I come up on him it gives me the option to talk to him even though he is slicin and dicin me. My spells go right through hime and my weapons don't touch him. HELP!!!!!!!!!!!!