This is Shadow. He lives with his humans in a yellow house, but he spends his days visiting the senior center across the street. And his evenings sneaking into the public library (they shoo him out, but he keeps trying anyhow). And he makes the rounds of Town Hall too.
I went to the senior center looking for him and found him napping on the carpeting in the office. I'd assumed his motives in frequenting the senior center were altruistic, but in typical feline fashion they appear to be completely self-interested. Shadow is himself a senior citizen, and he knows where to go for sunbeams and sociable company.