All will be revealed when you journey to Dim Carcosa, meaning that the locations in this scenario have no unrevealed side. Instead, their reverse sides holds story cards to push your plotlines forward to their final curtain. In this hidden realm, insanity is inevitable. But even with your mind broken and fractured, your investigation does not end here. The 6th and final Mythos Pack in the Path to Carcosa cycle for Arkham Horror: The Card Game. Offering 60 new cards to expand your adventures in the Arkham Horror Files universe In Dim Carcosa, you are not defeated when you have horror equal to or greater than your sanity. Instead, you travel, facing impossible odds in the hopes to return home alive. Dim Carcosa offers three different forms of Possession. When you draw these hidden dangers from the encounter deck, they force you to add this card to your hand and keep it secret from your fellow investigators. From there, you are faced with a difficult or even an impossible decision.