The world as we know it is ending. Earth’s rotations have slowed, and the disastrous implications of what society refers to as “the slowing” begin to become clear. Days grow longer first by minutes, then hours, then days and weeks. The government urges people to adhere to “clock time,” now based only on tradition instead of sunlight. Subtle shifts in gravity and circadian rhythms alter peoples’ health as changes in the atmosphere and weather bring natural disasters and crop crises. This is the premise of Karen Thompson Walker’s “The Age of Miracles.”