Deathly Still
From Arkham Horror Wiki
Deathly Still is a mythos card. It first appeared in the Dunwich Horror expansion.
Card Information
Mythos Type: Environment (Weather)
Gate Opens: Gardner's Place
Clue Appears At: *Cold Spring Glen
Mythos Ability: Will checks in Arkham are made at a -1 penalty. Fight checks in Arkham are made at a +1 bonus. Monsters that move normally are stalkers.