Cultist Cathedral Board
The local church has been a little too bloodthirsty lately. They now seek out the blood of higher beings.
My first build used to introduce a player as they were being sacrificed to an unknown deity. Features a small opening section to church, upper area for random stuff, and the main hall where the bones of local townsfolk are used to summon a horde of skeletons (skeletons are made invisible until summoned/reveled) upon your party.