A One-Round Living Greyhawk Nyrond and Her Environs Meta-Regional Adventure
From the introduction:
The streets of Rel Mord are home to many dangers. Some have sharp fangs, others nasty daggers. But there exists a far more hideous and foul evil than all the vermin and bandits combined... Nobility.
A high-level scenario for only the bravest and most capable of adventurers.
An adventure for [character levels] 8 - 14.