I think there could be a local storyteller/old man or whatever if you please Ninja, who would be a little too eager to tell you about the almost continent sized piece of Hell on Eden that few would dare venture to willingly.  That the only way without being shot down if you try to go by airship to get into the place is through Quin Xi or however I spelled it lol.  That there isn't a dozen boss level demons, but more like close to a hundred, each more powerful than the last and all of them with their power that would indeed make a powerful player look like a damn rookie.  Beyond that, any specific details regarding the actual nature of the defenses the place has or anything like that won't be able to be found here.