The mechanism for opening the door wasn't too difficult to find, now that Zitka knew where to look, though it would have been much harder if she hadn't seen the telltale grooves on the floor.  Once it was open, it was clear that the door should have had a small bit of clearance over the floor; it appeared that the wall the door was set into had sunk into the ground a bit.<br/><br/>Beyond the door was a short tunnel with stairs leading a bit further underground.  It looked like the passage past the stairs had several branching forks, leading to a rather large network of underground catacombs.