The City of Shadows

The City of Shadows existed only in shadows. It was full of scientists, and magicians, and rogues, and bards. The buildings were tall, made entirely out of black glass. The streets were made of black stones and bricks, narrow and crowded. Banners hung everywhere, all the plants were poisonous, and if you wanted to disappear, this was the best place to do it from. Something about the city caused portals and wormholes to appear, so it was easy to get into, and easy to get out of.