The Undead Poker Shack is an old house where the Undead of Rat's Nest gather to play Undead Poker. You can only get in if you have a pass from T-Bones the Bouncer. Players can only access the inside of the hut during the Raven's Cove Story Quest. Afterwards, you are unable to get in unless you teleport to a friend inside.
Beware! Inside the shack lies a poker table for the undead where if you lose at the current hand you will lose part of your life too!