I dislike the idea of Monsters to be in the game. However, I do not mind if Monsters, to be in Dungeons/Hell so that the people who want them can be satisfied, and the realistic animals to be on the surface such as Bears, Wolves and more so that the people who want realistic animals/predators can be happy too. You understand that, right?
It appears we might have a war brewing on the horizon. If they do it the way I'm imagining in a similar style of seriousness to Dragon's Dogma then that be interesting
:27 - 1 minute, minus the head-grapling. Basically being foggy entities moving about while having a good chance of being hostile when lingering in the area too long. That would be most ideal for the villages that have a graveyard that want to be left alone, or have some form of regrets to take out on players.
And I understand why you want it to be realistic. Just check out that Dragon's Dogma trailer for a moment to see how it 'could' be done. Not everywhere, just spaced out enough. VIllager ghosts from graveyards being one realistic spot to do so. I guess I should also suggest that they should be insanely hostile and aggressive down in Hell due to how much suffering is down there. There they can be brutally hostile.
How to deal with ghosts? I'd say torches. Just holding it should be enough, no?
(EDit: I don't know anymore. I'm simply loosely brainstorming at this point.)