A One-Round Living Greyhawk Perrenland Introductory Regional Adventure
From the introduction:
Fame, fortune, adventure! It's all synonymous with Laufgen - as well as betrayal, disaster, sewer scum, power lust, criminal activities, and a dragon the size of a mouse.
A Perrenland Regional Introductory adventure for 1st Level characters only.
This adventure was distributed as two PDF files - the 23-page scenario and an 11-page print-and-play map grid (paper "battlemap").