Shadow oozes out of the floors, the walls, even the air, filling the area with wisps of writhing blackness. Creatures within the area become coated in these clinging shadows.

Any creature within the area affected by this mystery, or that enters the area on its turn, must make a Reflex save or become immobilized.

Each round on its turn, an immobilized subject can attempt a new saving throw to end the condition. Because of the subject’s condition, this save is a full-round action (but does not provoke attacks of opportunity). If an immobilized subject succeeds on its save, it still needs to save again at the start of its next turn in order to avoid succumbing to the darkness again.