They don't come out of the shadows and lay waste to everything in Their path. They've done that exactly once, that we know of, and that was Jerusalem. Mostly, They wait for you to fall into a shadow and then They do whatever it is They do with you.
Those of us who have been to the Between have seen Their natural environment a little more closely, of course. But it's always disappointing to folks who want information to use for strategy or analysis. They're "home" is just...dark. Nothing really there. You get some sense of topography, but...well, the Between's hard to explain, and They aren't easy either, so I'll try and stay focused.
Even if you've seen Them, you probably haven't really seen Them. When we see Them, it's usually because They're dragging someone near us away. And we look straight at the person being dragged, and usually what we remember is the screaming and the terror and sometimes the abrupt snap when the...It...carrying the person decides "fuck it" and just kills him. But we're looking right at It, and the thing is that They are always shrouded in shadows.
So if you look at Them out of the corner of your eye, where the greatest concentration of rods are, you see Them better. Rods are the bits of the eye that see better in dim light, which is why your peripheral vision is better in the dark than in the light. So if you really want to see Them, you look out of the corner of your eye.
While they're dragging someone away. Yeah, I didn't think you want to see Them that badly.
But really, you want to know the worst part? Think about all the times in your life - before He took over, I mean - when you thought you saw something move in the dark? Just some little flicker of activity, just for a split second, and you looked into that corner or behind that door or under that bed and there was nothing there except shadows, and you thought, "Hell, I thought I really saw something?"
I'm betting you did. I think They were just waiting for something.
curse the darkness