Instructions for a Heatwave by Maggie O’Farrell

Gretta Riordan wakes on a stultifying July morning to find that her husband of forty years has gone to get the paper and vanished, cleaning out his bank account along the way. Gretta’s three grown children converge on their parents’ home for the first time in years: Michael Francis, a history teacher whose marriage is failing; Monica, with two stepdaughters who despise her and a blighted past that has driven away the younger sister she once adored; and Aoife, the youngest, now living in Manhattan, a smart, immensely resourceful young woman who has arranged her entire life to conceal a devastating secret.