oh oh oh I just noticed but not only is it a house but it is all decrepit, look at the wooden boards showing through on the wall and the cracks on the room where the mascot just came out of... haunted house/asylum is looking good which sucks for my guesses! (slaves, summoning, demon)
but means a cool theme
I dunno why I just thought it would be a bit exorcist/demon-y this year (slaves I was thinking demon overlord ZP lol)
if you are reading this then you are blissfully unaware of what is creeping up behind you...