This is styled a little bit different than my usual theories because I'm not putting my theory in the project so it can be easier for me. I was rereading a few EA chapters when I took a look at the panel shown and noticed that in the black part of the bg, the outline turns to white. If you remember those old sneak peaks Meadow showed in the past (https://scratch.mit.edu/projects/964795018), they have the same black outline. However, the cat in the sneak peaks is not Salmon, it's Hazepelt (confirmed by Meadow). Now, what is the theory about? Nothing much tbh, I think the completely black place is the area between the Dark Forest and StarClan Evidence? Well Meadow made some art of Dark Forest characters, and in the background, it is not pitch black. It may be a little hard to see due to the lighting, but you can make out a couple of trees. (Project link: https://scratch.mit.edu/projects/1119042108) I'm still not sure how Haze would've gotten to this area in first place, nor if it may look different in the future tho (since Meadow also confirmed that they may change how the scene would play out. The scene IS canon btw, its just how it would work)
EA by @MeadowFoot_ToPH