 Hellblazer was set in a contemporary world , albeit a world of magic and supernatural conflict behind the scenes . Although issue 14 made a passing reference to <unk> , the series since developed its own pocket universe in which the supernatural or paranormal did not play a large role in the lives of most ordinary people , and in Earth @-@ threatening circumstances no superhero <unk> were shown or hinted at , suggesting that <unk> no longer existed there . However , some DC Comics characters — most notably the fringe supernatural characters such as Zatanna , The Phantom Stranger , Shade , The Changing Man , Dream of the <unk> , and Swamp Thing made appearances . 
