Isabel Turner in Homecoming: The Mother Whose Secrets Rewrite the Family Tragedy

Overview

Isabel Turner is the enigmatic mother at the center of Homecoming's central tragedy. Born Isabel Hart to a French mother and an English father, orphaned young, she worked in wartime Whitehall before marrying Australian war hero Thomas Turner and relocating to the Adelaide Hills. On Christmas Eve 1959, she and three of her four children were found dead beneath a willow tree near a water hole on their property, Halcyon. The coroner initially ruled murder-suicide by poisoning, casting Isabel as a mother who killed her children. The novel's layered investigation—through journalist Daniel Miller's research, Nora's concealed memories, and Jess's 2018 discoveries—gradually dismantles that verdict. Isabel was not the murderer; she was poisoned by Meg Summers, and her private 1959 journal reveals an affair with farm manager Henrik Drumming that reframes the entire family tragedy.

Plot Role

Isabel functions as the novel's central absence—a woman who dies before the story opens but whose voice, through her journal, drives the mystery forward. Her death triggers the police investigation, the community's suspicion, and the decades of secrecy that shape Nora, Polly, and Jess. The journal that Nora gives to Daniel Miller, with its torn-out pages, becomes the key artifact that Jess recovers in 2018. The missing entries—hidden at the back of the journal—expose Isabel's affair with Drumming and her plan to leave Thomas and return to England with her children. These pages reframe the tragedy: Isabel was not a despondent murderer but a woman with plans and hopes, cut down before she could act on them.

Motivations and Traits Shown Through Actions

Isabel's character emerges through testimony, her journal, and the recollections of those who knew her. School friend Gemma Hancock describes her as ever resolute—the kind of person who needed to feel vital, working toward a higher purpose. She was furious when pregnancy curtailed her war work. She received an award for valor at the end of the war; she had learned to perceive risk and act anyway, and she had enjoyed it.

Her wartime service reveals her courage and conviction. At a 1940 soirée, she publicly challenged men dismissing France's defeat, declaring that France would fight back and win. This defiance led to her recruitment for secret work. Her orphaned childhood—both parents dead by age seven—shaped a resilient, self-contained woman. Her headmistress's reports describe a resilient child, unshakable once her mind was set.

At Halcyon, Isabel presented a composed exterior. Housekeeper Esme Pike noted she was a discreet person who did not talk much about herself or her past. Yet in her final weeks, she was visibly struggling: Nora observed her insomnia and forgetfulness, and Isabel herself told Henrik Drumming that she could not sleep at night and found herself sleepwalking by day.

Her journal reveals a woman torn between duty and desire. The hidden entries describe her affair with a married man—she acknowledges that he has a wife he has known since childhood, and that she too is married, though she dismisses her own marriage as hollow. She planned to leave, to return to England with her children. This is not the portrait of a woman who would murder her own children; it is a woman with a future she intended to claim.

Chronological Arc

Isabel's life unfolds in fragments across the novel:

Childhood: Born to a French mother (Amélie Fleur Hart) and an English father. Her father died in a fall from the Clò Mòr Cliffs while counting puffins; her mother died five weeks later. Isabel was sent to a Sussex boarding school, then to London.
War years: Worked in Whitehall, handling secret papers. Received a valor award. Was recruited for secret work after impressing a woman at a soirée with her defiance.
1944: Met Thomas Turner in London. Married him and sailed to Australia, pregnant with Matilda.
Life at Halcyon: Raised four children—Matilda, John, Evie, and baby Thea. Thomas was frequently away on business.
1959: Began an affair with farm manager Henrik Drumming. Thea was born, fathered by Drumming. Isabel's insomnia and distress worsened. She planned to leave Thomas and return to England.
Christmas Eve 1959: Poisoned by Meg Summers, who made fish paste from a pufferfish. Isabel and three children died beneath the willow tree. Baby Thea was taken by Meg's son Marcus and later left at Halcyon, where Nora found and raised her as her own.
Posthumous: Initially blamed for murder-suicide. Her journal, given to Daniel Miller by Nora, was missing its torn-out pages. In 2018, Jess discovered the hidden pages, revealing the affair and Isabel's plans.

Relationships

Thomas Turner: Isabel's marriage was strained by Thomas's frequent absences. Nora noted that Isabel made occasional jibes suggesting she would have preferred him to do less of his business overseas. The journal's dismissive reference to her own marriage suggests deep dissatisfaction.

Nora Turner-Bridges: Isabel's sister-in-law became her closest friend. Nora adored Isabel—she felt Isabel's ease with life was not her fault—and fiercely defended her innocence, insisting Isabel would never have harmed her children, that she loved them and loved her life. Nora's loyalty extended to concealing the journal's torn pages from Miller, though she also later told Miller a troubling memory of seeing Isabel lowering a pillow toward baby Thea's face—a memory that may have been distorted by grief or fear.

Henrik Drumming: The farm manager was Isabel's lover and Thea's biological father. Their affair is revealed through the journal's hidden pages. Drumming told police he and the Turners had an understanding, and he regretted not coming to work on Christmas Eve as long as he lived.

Meg Summers: The shopkeeper who secretly poisoned Isabel. Meg's motive is not fully detailed in the novel's surface narrative, but her deathbed confession reveals she made fish paste from a pufferfish and gave it to Mrs. Turner, who shared it with her family. Meg's son Marcus had caught the pufferfish intending to poison Isabel, but Meg took it and carried out the act herself.

Her children: Isabel loved her children. Nora insisted she loved them and loved her life. The journal's plan to take them to England suggests she wanted them with her, not dead.

Key Decisions and Consequences

The affair with Drumming: This decision created Thea, whose paternity would have upended the Turner family. It also gave Meg a potential target for the poisoning.
Planning to leave Thomas: Isabel's plan to return to England with her children is documented in the journal's hidden pages. Had she acted sooner, she might have escaped Meg's plot.
Confiding in Nora: Isabel's sister-in-law became her confidante and defender. Nora's decision to conceal the journal's torn pages protected Isabel's reputation but also delayed the truth for decades.
Her insomnia and distress: Isabel's visible struggles led Henrik to give her barbital pills (his wife's prescription), which police found in her drawer—initially suggesting suicide.

Theme and Symbol Connections

Isabel embodies the novel's central themes. Intergenerational secrecy radiates from her: her affair, Thea's paternity, and her plans to leave were hidden for nearly sixty years. Maternal love and moral ambiguity are tested through her: she loved her children yet planned to abandon her marriage, and the false murder-suicide verdict made her a monstrous mother in the public imagination. Memory, narrative, and the construction of truth are central to her story: the journal, the torn pages, the coroner's verdict, and Miller's book all compete to define her. Identity and the search for origins connect to Thea's true parentage and Polly's discovery that she is Thea Turner. Guilt, complicity, and legacy are embodied in Meg's crime and Nora's concealment.

Her mother's Limoges teacup—shattered on Christmas Eve morning—is a poignant symbol of Isabel's fractured life and lost heritage. The journal itself is her voice, the means by which the truth finally emerges. The carved wooden wren that Percy gave her, later worn by Polly as a necklace, links Isabel to the Summers family and to the tragedy's hidden threads.

Five Questions and Answers

1. Was Isabel actually guilty of murdering her children?

No. The coroner initially ruled murder-suicide by poisoning, but the novel reveals that Meg Summers poisoned Isabel and her family. Meg made fish paste from a pufferfish and gave it to Mrs. Turner, who shared it with her children. Meg's deathbed confession confirms this.

2. Who was Thea's biological father?

Henrik Drumming, the Turners' farm manager. Isabel's journal's hidden pages reveal her affair with a married man, and Jess identifies Drumming as the lover. Thea was Drumming's child, not Thomas's.

3. Why did Isabel plan to leave Thomas?

Her journal reveals deep dissatisfaction with her marriage—she dismisses it as hollow—and her affair with Drumming. She planned to return to England with her children, suggesting she saw no future for herself at Halcyon.

4. What did the torn-out journal pages reveal?

They revealed Isabel's affair with a married man (Henrik Drumming), that he fathered her baby Thea, and her plan to return to England with her children. Nora had torn out and hidden the pages to conceal the affair from Daniel Miller.

5. Why did Nora conceal the journal pages?

Nora wanted to protect Isabel's reputation and the family's legacy. She gave Miller the journal but removed the incriminating pages, fearing the affair would further tarnish Isabel's memory and complicate the family's story.