In the "poor people's corner" in Aleroth , near to the Inn where the healers reside, there is a person called Maria who might ... give you a quest which could help you in this case.
By the way, PLZ stands in German for "Postleitzahl", and that's a number for directing letters into the right directions, towns, that is. <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" />
