A builder named Bill arrives to assess the water damage. He’s professional and clear as he discusses ways to keep costs down. Hadron purrs and approaches him, making Ella reflect that the cat is a good judge of character.

Ella invites Sally to come with her to pick up Virginia Woolf’s A Room of One’s Own from Hannah’s market stall, but Sally seems disoriented. Ella expresses concern about Sally’s confusion, but Sally dismisses it as normal aging.

After lunch, Ella walks along the Thames Path. She passes the Trafalgar Tavern and recalls watching the Royal National Lifeboat Institution rescue a small boat during a storm when she was a teenager with her friend Verity. Feeling nostalgic, Ella invites Verity to dinner. She buys A Room of One’s Own at Waterstones, a large bookstore chain, and then meets Nathan at the library to introduce him to Jakub. Ella explains that Jakub is an expert on benefits, grants, and government resources. Nathan hesitates but agrees to talk with Nathan about his situation.

Verity arrives for dinner with delphiniums. They reminisce about their disastrous sixth-form dinner parties, which highlighted the economic differences between them. Ella recalls how Sally helped her host a successful dinner, while her friends struggled due to lack of money and parental support.

Over tuna pasta bake, Sally asks probing questions about Verity’s life. When Verity admits that she does all the housework despite paying half the mortgage and having no space of her own for her art, Sally pointedly asks if her husband, Luke, is a good man. Ella tries to redirect the conversation to Verity’s art class at the library, which Verity describes as magical.

Sally brings up Virginia Woolf’s assertion that women need money and a room of their own. She becomes increasingly agitated, asking Verity if she has her own money. When Verity acknowledges the unfairness of her situation, Sally begins to cry, saying that women need their own money and should be treated with kindness and respect. Ella and Verity comfort the distraught Sally. Ella suspects that Sally’s issues may have started before the water damage and feels guilty for not having noticed sooner.

Twenty-one years ago, shortly after Neil’s death, Sally meets with a solicitor. He advises her to sell the house, explaining that after settling Neil’s debts, very little money remains, and a large mortgage is still outstanding. Sally learns for the first time that Neil spent their money extravagantly; he was a member of three private clubs, he always traveled first class, and his high-risk investments failed.

Sally recalls that Neil had convinced her to merge their finances into a single account that he would manage, giving her a monthly allowance that he called “her wages.” She realizes that she can no longer ask him where her teaching salary went or what happened to their savings. On her teacher’s salary alone, she will have to pay the mortgage now that Neil is gone.

Sally refuses to sell the house, determined to leave something of value for Ella’s inheritance. She reflects that Neil was devious and that she was a fool, but Ella was innocent. Despite all Neil’s faults, he loved his daughter, which is why Sally stayed with him. She vows to do whatever it takes to ensure that Ella will always have a home on Circus Street and decides to keep the dire financial situation secret.

In the present, Ella calls Charlie and explains her concerns about Sally’s memory and strange behavior. She tells him that she feels at home and supported in Greenwich. On FaceTime, Willow is disappointed about coming in second in a science quiz. Ella consciously refrains from her usual response—asking who was first—a habit inherited from her father. Willow shares her friend Sasha’s view that doing your best matters more than winning. Ella reflects on how isolating success can be.

Ella calls Sally’s doctor and secures an appointment for June 9 to check her cognitive function. At the market, Hannah enthusiastically agrees to contribute to Ella’s library project for Sally. On her way home, Ella encounters Pru, who complains that Sally missed book club. When Ella asks Pru to participate in the library project, Pru refuses and corrects Ella, saying that the damage was not a flood but Sally leaving the bath running. She says that she’s too busy helping people in actual need at the public library.

Ella and Sally wait for Sally’s appointment. Looking at a photo of the lost library, Ella points out an old copy of Jane Austen’s Persuasion. Sally becomes emotional, explaining that the book was a precious gift from a friend, an edition published in 1950—Sally’s birth year. Ella realizes that she needs to find specific editions for replacement books. After a long wait, the nurse removes the splint from Sally’s fingers, which are swollen and bruised. She instructs Sally to wear it only at night for two weeks.

Back home, Ella searches online for the 1950 edition of Persuasion. The only copy she finds has already been sold. Her search leads her to a man named Professor Walker at Canterbury Christ Church University, who owns a copy and has a blog about the book. Ella emails him, asking to discuss the novel. Hadron enters and, for the first time, does not growl at Ella.

Sally asks for her copy of The Alchemist, thinking that her book-club meeting is that night. When Ella gently corrects her that it was on Monday and today is Thursday, Sally is visibly distressed by her memory lapse. That night, Ella calls Charlie and explains that she must extend her stay to be present for Sally’s June appointment. She expresses guilt for being away from Sally for so long that she cannot tell if her mother’s decline is normal. In bed, Ella reflects that her motivation for staying has shifted from duty to love.

On a sunny morning, Ella persuades a reluctant Sally to go for a walk in the park. Sally’s lack of energy is out of character. On their way out, they see Nathan, who thanks Ella profusely for introducing him to Jakub. Nathan reports that Jakub has helped his mother in Manchester access support services and secured Nathan a university bursary, a free SIM card, and support for his ADHD. Overcome with affection, Ella, Nathan, and Sally share a group hug.

In Greenwich Park, Ella tells Sally that she plans to stay in London two more weeks. The park setting triggers a memory of her father angrily telling her not to be a “crybaby” after she fell off her bike. When Sally expresses concern about her commitments, Ella explains that Willow is happy with daily video calls and that she’s not as indispensable at work as she once believed. Sally is delighted that Ella is extending her stay.

Ella receives an email from Professor Walker inviting her to his office in Canterbury. When she asks Sally if she’d like to take a day trip with her the next day, Sally’s mood shifts abruptly. She firmly refuses and marches back toward the house, leaving Ella confused. Back home, Sally goes directly to her bedroom. Ella arranges for Hannah to stay with Sally while she goes to Canterbury alone.

Twenty-one years ago, on the morning of Neil’s funeral, Sally dresses in black, feeling like the only color left in her world is Ella. She calls for Ella, telling her that the car will arrive soon to take them to the funeral. Hearing sobs, she goes upstairs and finds Ella’s bedroom empty. The sobbing is coming from Sally’s own bedroom on the third floor.

Sally finds Ella sitting on the floor, her shoulders shaking. When Ella turns around, her face is hurt and angry. She screams at Sally, asking how her mother could betray her father, and recoils from Sally’s touch. Ella explains that she was looking for a book of poems that Sally had suggested but found a letter next to Sally’s bed instead.

Sally looks down and sees the letter on the floor, marked with tear stains. She recognizes the headed paper and the familiar handwriting. In that moment, Sally realizes the devastating consequences of what Ella has discovered.

In the present, Ella arrives at Canterbury Christ Church University and finds Professor Walker’s office. He’s a tall man with white hair who greets her warmly, studying her face with unnerving intensity. His office is filled with books, and the special copy of Persuasion sits on his desk.

Ella explains about the destruction of her mother’s library. The professor reflects on the preciousness of all books, and his words remind Ella of how her mother encouraged her to study literature while her father pushed her toward law for financial reasons. She admits that she has not read Persuasion, and the professor expresses envy for the experience she has ahead of her, reading the book for the first time.

Ella explains her estrangement from her mother and her hope that understanding the book will help her understand Sally better. Walker quotes Charles Dickens, saying, “[T]he pride of a mother in her children […] is a compound of two cardinal virtues—faith and hope” (232). He explains that Persuasion is his favorite book because of its social commentary on class, its exploration of duty, and the hopeful love story of Anne and Captain Wentworth, who were separated by circumstance and Anne’s sense of duty.

Unexpectedly, Walker offers his precious copy of the 1950 edition to Ella. She tries to refuse, but he insists, saying that he wants her to have it because she came on a mission of love and reconciliation. He refuses payment, asking only that she email him her thoughts on the book when she reads it. His voice cracks with emotion as he closes the door.

Back home, Ella makes dinner while Sally helps chop vegetables. Sally begins to laugh, recalling a dinner at a restaurant where the chef mistakenly put coriander on Andrew’s food, which he hated. Ella freezes at the mention of Andrew’s name. When Sally says that they had many such dinners when Ella was about six or seven, Ella becomes enraged.

Believing that Sally is casually admitting to a long-term affair, Ella accuses her of lying and manipulation, calling her kindly persona an act. The chicken begins to burn, and Ella turns off the stove. In tears, Sally says that she did not mean to mention Andrew. Ella tells her that it was a Freudian slip and proof of deceit and then storms out of the kitchen.

Sally comes to Ella’s bedroom door holding a piece of paper. She swears that she mentioned Andrew by mistake and that it was Neil who disliked coriander. She explains that she can’t not always find the right words. Ella goes downstairs for a drink, and Sally follows, putting an NHS letter on the table for Ella to see.

Sally reveals that she had memory tests before Ella arrived and received results on the day she went to the doctor. She has a preliminary diagnosis of some form of dementia, though more tests including an MRI are needed to gain more information. She apologizes for lying, explaining that she was in denial and didn’t want to ruin Ella’s visit or worry her. Ella is stunned, and they embrace and sob together.

Sally explains that because the house is a listed building, repairs must follow strict rules, and she has no insurance because she let it lapse. She tells Ella that there was no money left when Neil died because he made bad investments and lived an expensive lifestyle, admitting that he spent lavishly on his mistresses. Ella is shocked. Sally tells her that Andrew was the one who first told her about Neil’s affairs, which caused the falling out between Andrew and Neil. Sally insists that her relationship with Andrew was only ever platonic support, not an affair.

Ella’s idealized image of her father shatters as buried memories resurface of his absences, arguments, and harsh treatment. Sally reiterates that Neil loved Ella but was driven by a need for power and control. Ella realizes that she valued her father’s hard-won approval over her mother’s unconditional love and apologizes, understanding why Sally once said she was just like her father.

Sally reveals one last secret: Even when she stopped sending letters to Andrew after Neil’s death, he continued writing to Sally for a decade. Sally admits that she has written many letters to Andrew over the years that she’s never sent. She asks for Ella’s forgiveness. Ella knows she can forgive her mother but realizes that forgiving herself will be much harder.