We will be dropping 7 entry tokens for Sin Dungeon anywhere in Halloween Town on Saturday 26th October, and another 7 on Sunday 27th October (announced in-game throughout the days). If you are lucky enough to find one, then you may gather a varied party of four players and enter the dungeon. When your party is ready, please send us a message in-game with the token in your backpack.
I would suggest that you read the book about this dungeon, which is situated through The Door in Halloween Town.
If you die in this dungeon, your time there is over, you WILL NOT be able to access your corpse. Only one chance to survive!!
Also, make sure you have enough time to try to defeat this place, you could be in there for a while.