Well, SUCESS. I think. I checked the bathroom n saw random marks in the powder. Not made by any animal. They were short sliding type marks. Then one long skinny mark about 14 inches long heading towards the bathroom door. Dummy me I forgot to put powder by my exit channel to see that it left the building.

So so now I have the bathroom door sealed off. Give it a few days checking then seal that hole. Feeling better already.