There will come a day when mankind discovers the means to leave his solar system, to strike out into the galaxy and the myriad of stars and worlds beyond his own. There will come a great and terrible shock, because beyond that safe border, the galaxy is bright, and full of monsters
Patron deity of the Cult of Done, Othamm is always working to counter Mathom's influence.
High above the lands of the living, where frost and howling of the wind reign, the morbid monument to a faith long dead calls the deceased on a last pilgrimage.
If you want to add a "supernatural" touch to your campaign, define the rules of magic and the universe. Make your players comfortable with those rules. Then your new supernatural creatures must then break those rules.