As you may have heard by now, I won the DM’s Challenge, put together by WotC on the Saturday of Pax. For weeks, since it was announced, ChattyDM and I have been trash talking and hyping each other up about the event. For a while, I was worried that the event wouldn’t run due to lack of participants. Boy, was I wrong.
The latest 4th Edition Dungeons & Dragons supplement from Wizards of the Coast is simply titled Underdark, and it contains all kinds of information and fleshed out details on the entire realm for which it is named. This book is along the same vein as The Plane Below book on the Elemental Chaos, but the Underdark is a subterranean realm just beneath the surface of your game world and so will always be more accessible than the other planes to your players and their characters.