Giant firebreathing spiders attack the city!
A mayor (from the Latin mÃƒÂ¢ior, meaning "greater") is a modern title used in many countries for the highest ranking officer in a municipal government. In some places The Mayor is the Chief Executive running the city. In others, they are a ceremonial official. No matter what they really are, mayors tend to reflect their cities, and their cities and city administrations tend to reflect them.
You come upon a ruined building in the back section of a city park (or other out of the way area of the city). The ruins are fairly overgrown. All that is really standing is a doorway and its frame. If you pass through the opened door, you travel to a different world. If the door closes, there may not be a doorway back to get you back.