The sky floated a silver feather as I was driving home from Pittsfield. But the sun would not let it shine for long. In a minute or two, the giant fringed cloud had turned to pewter and then to near black, tarnished by the end of the day. A few days later, heading east, an egg-shaped moon rose at sunset, surrounded by soft pink clouds. Behind us, the sky had the same kinds of clouds -- like a sweep of a paint brush -- but they were peach against pale aqua. And then, a minute earlier than the day before, the November sun had pulled up its covers and gone to sleep.