Tove Jansson has been having a sort of “hot girl” moment: funny, to me, for whom The Summer Book (1972) is anti-“hot girl lit” canon. I see Sun City, now reissued in Thomas Teal’s translation, as a sequel. Jansson’s second takes the less “hot” concerns of her first and puts them, well, dead center: the sun city here is a retirement community in St. Petersburg, Florida.