Instructions for a Heatwave

The Day Robert Riordan Walked Out

It is July 1976, the hottest summer in memory, and Robert Riordan has gone to buy a newspaper and not come back. His wife Gretta — Irish, formidably capable, constructed almost entirely of worry and love — does the only thing she can think of: she calls their three children. Monica, the eldest, is in a difficult marriage. Michael Francis is a teacher whose relationship is quietly disintegrating. Aoife, the youngest, is in New York, keeping the family’s largest secret.

They all come home. The house becomes a pressure cooker — the heatwave outside mirroring the suppressed history forcing itself to the surface inside.

The Riordan Children

O’Farrell’s construction of the three siblings is the novel’s central achievement. Monica, Michael Francis, and Aoife are distinct not just as characters but as responses to the same family system — the same parents, the same Irish-immigrant household in London, the same set of formative experiences producing three entirely different people with three entirely different problems.

Aoife’s secret — that she is functionally illiterate, a condition she has hidden with extraordinary ingenuity throughout her adult life — is handled with particular care. The shame and the strategies around it are rendered with a specificity that illuminates the condition and the person simultaneously.

The Heatwave as Pressure

O’Farrell uses the 1976 heatwave with the assurance of a novelist who understands that setting is not decoration. The heat is inescapable — in every scene, in every character’s discomfort — and it serves as a physical correlative for the family’s psychological state: the past is pressing in from all sides, and the familiar social lubricants (politeness, tact, the maintenance of appearances) are melting under the pressure.

Our rating: 4.2/5 — A precisely constructed family novel that uses the 1976 heatwave to strip away the accommodations that hold families together, revealing the secrets underneath with wit and emotional intelligence.

A Contemporary Novel from a Historical Novelist

Instructions for a Heatwave, published in 2013, demonstrates a side of Maggie O’Farrell that her historical fiction can obscure: her command of the contemporary family novel. Set during the record-breaking London heatwave of the summer of 1976, the book opens with a small, ordinary act that turns catastrophic — Robert Riordan walks out to buy a newspaper and does not come back. His wife Gretta summons their three adult children home, and the vanished father becomes the occasion for a reckoning with the secrets the whole family has been keeping.

The Riordan Children

The construction of the three siblings is the novel’s central achievement. Monica, Michael Francis, and Aoife are distinct not merely as characters but as different responses to the same family system — the same Irish-immigrant household in London, the same formative pressures producing three entirely different people with three entirely different problems. Aoife’s secret, that she is functionally illiterate and has concealed it through years of ingenious strategy, is handled with particular care, the shame and the workarounds rendered with a specificity that illuminates both the condition and the person.

The Heat as Pressure

O’Farrell uses the 1976 heatwave with the assurance of a novelist who understands that setting is never mere decoration. The heat is inescapable, present in every scene and every character’s discomfort, and it works as a physical correlative for the family’s psychological state: the past is pressing in from all sides, and the ordinary social lubricants — politeness, tact, the maintenance of appearances — are melting under the strain. The result is a precisely constructed novel about family as a system of mutual concealment, one that strips away the accommodations holding people together to reveal the secrets underneath. Some readers find Robert’s disappearance resolved a little too neatly, but the book’s real subject is not the mystery of where he went; it is what his absence forces the people he left behind to finally say to one another.

The Irish-Immigrant Inheritance

What gives Instructions for a Heatwave its emotional substructure is the Riordans’ identity as an Irish family in London — a household shaped by emigration and by the particular in-betweenness of people who belong fully to neither the country they left nor the one they settled in. Gretta’s Catholicism, her formidable capability, and the worry that seems to constitute her are all bound up with that history, and the tensions it produces ripple down through the children in different ways. O’Farrell, who has written elsewhere about Irish and Irish-diaspora experience, handles this material without sentimentality: the displacement is not a backdrop but a source of the specific frictions that the heatwave brings to a boil.

Secrets as Structure

The novel’s deepest conviction is that families sustain themselves through collectively maintained fictions, and that these fictions become intolerable under pressure. Each of the Riordans is keeping something — Monica the truth about her marriage, Michael Francis the disintegration of his own, Aoife the illiteracy she has concealed for a lifetime — and Robert’s disappearance functions less as a mystery to be solved than as the crack through which all of these withheld truths begin to escape. Secrets in this novel are never passive; they actively reshape the relationships built around their concealment, and the reckoning the family is forced into is really a reckoning with how much they have agreed not to know about one another.

That is why the resolution of Robert’s vanishing, which a few readers find too neat, is ultimately beside the point. O’Farrell is not writing a thriller about a missing man; she is writing about what his absence compels the people he left behind to finally acknowledge. The 1976 heatwave, evoked with tremendous sensory precision, is the perfect objective correlative for that process — an inescapable pressure that melts the social accommodations holding the family together until what lies beneath is exposed. It is O’Farrell’s most accomplished contemporary novel, and a demonstration of range that her later historical fiction can cause readers to overlook.