The Radiant Way, by Margaret Drabble

I dove into this 1987 novel, having long been fascinated by the way Drabble uses the closeup of individual lives to chronicle social history. We begin at a New Year’s party in 1980 with three longtime friends, now approaching midlife turning points, even as Britain itself enters a decade of change wrought by Prime Minister Margaret Thatcher and her cronies.

At the party Liz Headland, a psychologist, finds that her marriage to Charles, long tamed by child-rearing and busy careers, is falling apa...