Board Thread:Speculation House/@comment-4830106-20130816155602/@comment-10390252-20130818145327

Just watched the entire thing from the Red Trailer to the end of Episode 5 (yes, I know, sad). I noticed something, as the Mk2 Beowolves made their appearance, the background became darker. There are two possibilities that come to mind:

1) It was just a bit of creative license to emphasise the moment of threat;

2) It really did get darker - the Creatures of the Grim literally are things of the Dark to the point where they leach the light out of the environment around them.