The city of New Arkhamoore is currently experiencing a surge of madness that is impacting both long-time residents and casual visitors. This escalating phenomenon has the potential to reach critical mass at any moment.. There are several tracks that throughout the game can become accursed: Madness Tracks and Shambler Tracks on Town Cards, Temperament Tracks and Delirium Track on Player Mats, and the Energy Track of the Great Old One. These tracks have an X at the end to identify them.

A track becomes accursed when the track is already full of Tentacles or Shamblers and another Tentacle or Shambler needs to be placed there. Two things will then occur:

• Relocation - All Madness/Eldritch Tentacles or Shamblers on the track and the one that needed to be placed, are cleared off the accursed track and moved someplace else based on what type they are (see Draw Tentacles). If there are additional Tentacles or Shamblers to be placed after the Accursed Tentacles or Shamblers have been relocated, place those onto the empty tracks after they have been cleared by the Accursed action.

• Consequence – An effect must be resolved.