Mindnet

People know about some of the caverns that run under the city, but few know how far they extend.

Under the bustling streets, 350 kilometers of tunnels lay.  Some lengths are a tourist attraction, filled with the bones of the nameless that cluttered massive cemeteries years ago.  Some lengths have been sealed off and are now inaccessible.  Warnings have been issued that the unsecured caverns are unsafe, and should be avoided. There is no light, no map, and nobody who can help those who venture in and become disoriented.

That knowledge still doesn't keep me from screaming for help.