This is a map of a chapel hidden away in the sewers in a town or city. The map works for both a fantasy setting as well as for more a modern one. So all you need to do is coming up with what evil cult is hiding away in the sewers and use the map for some great gaming time.
The pdf consists of three different versions, two coloured and one black and white. One of the coloured maps and the black and white version has a grid attached to it.