The Stone Wall

Humans are now gone, they have died out and become extinct, but their remains still linger behind. A perfect example would be the stone wall in the territory, crumbling and sliding, but still there. It was very poorly crafted, and it is surprising that it is still there. Cats regard the fact that it was made by humans, the stench now gone, and pretend that it is part of nature. It is a good resting place for creatures, so now the human smell is completely covered, now replaced by critters and mostly cats.