The dark flood rises

Francesca Stubbs has an extremely full life. A highly regarded expert on housing for the elderly who is herself getting on in age, she drives "restlessly round England," which is "her last love . . . She wants to see it all before she dies." Amid the professional conferences that dominate her schedule, she fits in visits to old friends, brings home cooked dinners to her ailing ex-husband, texts her son, who is grieving over the shocking death of...