It is well known that the former Lord Mayor of Greyhawk was once a powerful wizard. He was, perhaps, the most powerful mage in all of Oerth at that time. It is also well known that he was quite eccentric. Some might even call him mad. But he was acknowledged by even his rivals for being the most learned among them in the arts of magic.
This scenario often is distributed as a ZIP archive containing the PDF scenario and a high-resolution JPG map - the map also is included in the PDF, but at lower resolution.