Gosh, who can say.
You get an odd...chilling sensation all throughout your body as you move back towards the door. A lone portrait on the far side catches your eye. It's nothing special, another wolverine covered in bison fur, but...there's something in the background of the portrait, behind him—tons of weird, yellow specs that seem to radiate off the portrait. For a moment, you forget to breathe, and you're left feeling like the your tummy just dropped out of existence.
...Nausea pangs, I'd guess. I get those sometimes.
Anyway, keep looking?