The Skyfall Chronicles
The Dead Zone
The Dead Zone is an ever-expanding area inhabited by the undead (among other monstrosities). No one knows why it is there, how long it has been around, or what is deep inside of it. All that is known is that adventurers who enter are rarely seen from again. Those that return babble endlessly, their sanity shattered by some dark force. Towns close to the border are constantly under attack at night.
Individuals that make their home here are extremely adept at surviving against all odds. Though they are often extremely territorial and will not hesitate to kill someone they think might have something they want, some of the items they salvage from within the Dead Zone can be well worth the risk of attempting to make contact to trade.