Calling forth the Darkness
From Arkham Horror Wiki
Calling forth the Darkness is a cult encounter. It first appeared in The Black Goat of the Woods expansion.
Card info
Hooded figures kneel before a stone altar and begin a blasphemous ritual that draws power from a dark and malevolent source.
If you participate in the ceremony, each investigator must draw a Corruption card. If you choose not to do so, a monster surge occurs.
