For many months after Hurricane Katrina, life in New Orleans meant negotiating streets strewn with debris and patrolled by the United States Army. Most of the city was without power. Emptied and ruined houses, businesses, schools, and churches stretched for miles through once thriving neighborhoods.

Almost immediately, however, die-hard New Orleanians began a homeward journey. A travelogue through this surreal landscape, A Season of Night: New Orleans Life after Katrina offers a deeply intimate, firsthand account of that homecoming. After the floodwaters drained, author...