Blue Alley
A constantly changing demi plane dungeon created by a crazy wizard to mess with adventurers that come through it. At the front of it is a guest book that you must sign before you can get into the actual dungeon. This means that each person can only go into it once.
There is a bunch of traps, puzzles, and monsters that appear here, such as minotuars, mimics, skeletons, and shadows.
There is an enchantment in this place that causes to occasionally steal things from the nobles in the city and teleport the loot into the dungeon. This way it is constantly refilling itself. This also means that nobles really dislike it and try to retrieve their loot a lot from the dungeon.
When we went through here we came out with some good things, and some very bad things. We gained some money, and a large golden unicorn statue at the request of Mirt. But we also gained the cursed axe Bull’s Rush that completely shaped Dazzenar’s life and potentially ruined it. She became the avatar of Baphomet and was later killed by Yenoghu because of it.
But she also gained some sweet powers and essentially a demonic sugar daddy out of it, so it was a give and take I guess.