See the talk page for one user's guide to getting the chests at the end of the zone and another guide for the Zone's nameds.
General[]
Zone in from down stairs in the crypt accessed from the cemetary adjacent to Sonnborn Village at ( -376, 17, 54 ) Copy/waypoint -376, 17, 54. This is the middle difficulty of the 3 group zones in this area (click the portal at ( -333, 3, 1 ) Copy/waypoint -333, 3, 1).
If you go straight through at the first intersection you come to the Servant's Antechamber. An NPC Taechun Welby ( 221, 12, 45 ) Copy/waypoint 220.67, 11.54, 45.40has a questline starting with Good Housekeeping that takes you all over the zone.