i expected the stalker to come in here when i was sealing up the hole. it's why i did the work outside before i bought groceries. it's possible they tracked their dirty boots in here and it's a part of the problem. it's also possible that some of it is dust from mixing concrete.

but this filth is dark black, it's thick and it's ashy. it looks like it was created from burning something.

i suppose it might have also been partly caused by the wildfires.

whatever the cause, the solution is to get the shop vac in the garage and then to reclean everything. and this needs to be the priority. i guess it will give me the chance to reclean some spaces i recently cleaned and finish setting them up.