The book club doesn’t talk about books anymore now that we meet on Zoom. Jill and Lisa mention the solace they’re finding on the rooftops of their Mexico City apartment buildings, a momentary escape from four walls to be surrounded by sky and, until recently, the effusion of jacarandas in bloom. I too go to my rooftop, every night right around sunset. Jill wants to know if I’ve seen the roomful of Diego Rivera’s sunset paintings in the Dolores Olmedo museum. I have. There are twenty of these small, simply-framed gems arranged in an arc on a long wall. I often think of them right around 7:50 pm, the time when the sun that moves so imperceptibly across the sky all day picks up speed as it nears the horizon.