A black and white illustration of a group of cultists in a forest clearing trying to summon forth a creature from the abyss. This could easily be used as a page element to liven up a written scenario or adventure.

A scene such as this is most suitable for fantasy -themed setting but I suppose it fits equally well a horror -themed setting. Perhaps a group of players is stumbling upon a scene like this accidentally or perhaps they are desperately trying to prevent the members of this sinister cult to achieve a success in their nocturnal activities.