On an ordinary Saturday, Julia awakes to discover that something has happened to the rotation of the earth. The days and nights are growing longer and longer, gravity is affected, the birds, the tides, human behavior and cosmic rhythms are thrown into disarray. In a world of danger and loss, Julia faces surprising developments in herself, and her personal world—divisions widening between her parents, strange behavior by Hannah and other friends, the vulnerability of first love, a sense of isolation, and a rebellious new strength. With crystalline prose and the indelible magic of a born storyteller, Karen Thompson Walker gives us a breathtaking story of people finding ways to go on, in an ever-evolving world.