Dungeons
Dungeon Mastery is a skill that can be gained at Level 400 from an NPC in Lakeview, it is a difficult skill to master.

The objective of dungeon mastery is to build dungeons that kill your enemies, it is not intended as a place for your friends to level.

To create a dungeon you need to construct a dungeon deed, to do this use the Inventory > Tradeskill > Dungeon Mastery screen.

Using the deed from your inventory screen, will then construct the dungeon at the current location.

To administer your dungeon you can use the Property screens, and when you enter your dungeon you should have a series of new buttons in the bottom bank of buttons for you to play with.