I forgot about that part...<br/><br/>Well, this could be bad.  If I understand the situation correctly, the ambassador isn't actually dead in the classic sense.  Nor was he ever really alive.  The body's not about to spring back up and attack again, mind, but the ambassador's actually nothing more than an evil spirit that we just set free and which can immediately go and possess some other willing host if one exists... so really, we didn't silence the guy at all.  Though if we were to do, like, a Planar Binding or something on the guy, then kill him and his body, and kill that, it could work.  But probably not before he tattles.<br/><br/>Oh, and he can invade our dreams.<br/><br/>Edit: What's the DC for Sam to know any of this, by the way?  Knowledge: Religion result, 11+12=23.