I'm wondering how a meeting between some PCs and one of those light-globe Demons would go.
'As you walk along the cobblestone path, you begin to notice a strong smell of diesel, the sky grows foggier as the stars are blotted out by ambient light, the flickering light from torches in the area before being replaced by the steady glow of light-bulbs coming from warped high-rise buildings that seem to close in on you and the stretched light posts evenly spaced, looking down, you notice that the footpath has changed to smooth concrete.
On the other side of the road (Which you could have sworn wasn't there when you were in that small village but you can't remember where it started) one of the light-bulbs gives a tiny *pop*, fizzling out, and only a few seconds afterwards a steadily growing noise of metal being hit repeatedly and rapidly against rock begins to form out of the silence, and from the top of the shorter buildings a metallic spider around the size of a medium sized dog crawls out, turning vertically without a moments hesitation to crawl down the size of the building, carefully avoiding any windows.
When it reaches the bottom, you notice that it isn't so much a spider as it is a spider-shaped cyborg, it's legs, while appearing to be a simple hairy exoskeleton, shows metal tips, from where wear-and-tear must have worn the covering away, the the top of the abdomen is covered in small glass globes, one of your teammates, who is both an arachnophobe and a technophobe, passes out on sight.
You feel you have to open diplomacy as a matter of courtesy, you yell "HELLO LARGE SPIDER THING! HOW ARE YOU THIS FINE EV-MORN-NIGHT? JUST DOING YOUR JOB, I SEE?"
It totally ignores you, instead focusing on the burnt out bulb, wrapping its legs around the pole, it begins to shimmy up to the top, where it begins to use its fangs with a disturbing amount of dexterity to unscrew the light-globe, and pluck one of the glass balls which you now recognize as another, identical light-globe with its back leg, handing it up to its mouth, which it then screws in, setting it aglow, it then slides down back to the floor, giving a distinct sense of satisfaction, feeling quite left out, you rap your sword against the light-pole next to you.
Its gaze instantly snaps to you, with the kind of burning intensity one might consider a lion to have, holding that gaze for a full minute before backing up, still holding its sight on you, and crawls all the way back up the building, before disappearing out of sight, you could have sworn it gave you that 'I've got my eyes on you' action with its foreleg.'