The Fortune That Controls Frances’s Life

How to Solve Your Own Murder unfolds across two first-person timelines. In the present day, Annie Adams is a twenty-five-year-old aspiring mystery writer who has recently lost her London office job. Interspersed throughout Annie’s story are entries from The Castle Knoll Files, journals written by her great aunt, Frances Adams, as a teenager in 1965 and 1966.

Frances’s story begins when she is sixteen and attends the Castle Knoll Country Fair with her two best friends: glamorous, manipulative Emily Sparrow and loyal but jealous Rose Forrester. The three visit a young fortune-teller named Madame Peony Lane, who tells Frances that her future contains “dry bones,” that a bird will betray her, that daughters will be the key to justice, and, most frighteningly, that all signs point toward Frances’s murder.

Emily and Rose laugh it off. Emily even buys the girls matching silver bird necklaces because her surname is Sparrow. Frances, however, takes the prophecy completely seriously. She records every word in her notebook and spends the rest of her life looking for signs that the prediction is coming true.

Her fear becomes far more understandable when Emily disappears less than a year later. All that remains is a missing-person report and Emily’s silver bird necklace.

Annie Is Summoned to Gravesdown Hall

Nearly sixty years later, Annie has moved back into the enormous Chelsea townhouse belonging to Frances, where Annie’s mother, Laura Adams, lives. Laura is an eccentric modern artist, while Annie is trying to figure out what to do after being made redundant from her job.

Then Annie receives an unexpected letter from Walter Gordon, Frances’s longtime solicitor and one of her teenage friends from 1966. Walter asks Annie to come immediately to Castle Knoll because she may become the sole beneficiary of Frances’s estate.

Laura is furious. She believes Frances has decided Annie must be the “right daughter” mentioned in the old prophecy and intends to replace Laura as her heir.

When Annie reaches Castle Knoll, Walter explains that their meeting has been moved to Frances’s estate, Gravesdown Hall. Annie meets Walter’s grandson, Oliver Gordon, a handsome property developer working for Jessop Fields, and Elva Gravesdown, the snobbish wife of Frances’s nephew.

At the estate, gardener Archie Foyle cannot get them inside because he lacks the necessary keys. Walter eventually opens the house, and the group enters the library.

Frances is lying dead on the floor.

She is clutching long-stemmed white roses, and blood is dripping from punctures in her palms. Elva wants to believe Frances simply suffered a heart attack, but Annie examines the bouquet and discovers tiny metal needles inserted among the thorns.

Someone has murdered the woman who spent almost her entire life expecting to be murdered.

Before leaving the library, Annie secretly takes Frances’s green leather teenage journal.

Frances Turns Her Own Murder Into a Competition

Local detective Rowan Crane begins investigating. When blisters appear on Annie’s hands after she touched the roses, she is treated by Dr. Esi Owusu, Castle Knoll’s GP. The flowers had been contaminated with wild hemlock, although that turns out not to be what killed Frances.

Frances had secretly arranged for Dr. Owusu to perform her autopsy whenever she died because she did not trust her nephew, Saxon Gravesdown, the local coroner, to handle it impartially.

The autopsy reveals the real murder weapon: Frances received a massive injection of iron directly into her bloodstream, triggering a fatal heart attack.

Frances has also prepared one last puzzle. At the reading of her will, Walter announces that Annie and Saxon have one week to solve Frances’s murder. Whoever succeeds inherits Frances’s £40 million estate. If neither identifies the killer, Gravesdown will pass to Jessop Fields, which intends to redevelop the land.

Annie therefore begins investigating both Frances’s murder and the decades-old mystery Frances never stopped trying to solve.

Emily Sparrow’s Disappearance

Frances left behind an extraordinary secret file room filled with information about the people of Castle Knoll, organized according to their suspected crimes and secrets.

Some discoveries hit close to home. There is a file concerning Annie’s absent father, Sam Arlington, and another involving Detective Crane’s father, Reggie Crane, who once dated Laura. Crane admits that he sent Frances a cease-and-desist letter because Frances had been investigating Reggie for supposed infidelity. The truth was that Reggie was secretly gay, and Crane wanted to protect his father from being publicly outed.

Other files concern the complicated Gravesdown family, including Rutherford “Ford” Gravesdown, the late lord of Gravesdown Hall whom Frances married in 1968, and Ford’s first wife, Olivia Gravesdown, whose disappearance had generated rumors that she had been murdered.

The most important information, however, comes from Frances’s teenage journals.

In 1966, Emily had slept with Frances’s boyfriend, John Oxley, who eventually became Castle Knoll’s vicar. Emily became pregnant. She considered using the pregnancy to blackmail Ford Gravesdown or arranging for Frances’s childless brother, Peter Adams, and Peter’s wife, Tansy, to take the baby.

The situation among the teenagers became increasingly volatile. During an argument at an abandoned farmhouse, Walter struck Emily in the face. Frances panicked and fired a revolver into a wall.

Soon afterward, Emily disappeared.

The Dry Bones Finally Appear

Annie eventually examines a damaged leather trunk that had recently been sent to Frances from the basement of Laura’s Chelsea townhouse.

Hidden inside it are human remains.

The skeleton belongs to Emily Sparrow.

Emily was shot in the head, and her body has been concealed inside that trunk since 1966. She is also wearing Frances’s old black wool coat, and Frances’s revolver remains in its pocket.

Suddenly, the timing of Frances’s behavior before her murder makes sense. When the old trunks arrived from Chelsea, Frances finally discovered Emily’s body. The “dry bones” from Madame Peony Lane’s prophecy had literally appeared.

Frances changed her will after receiving the trunk because Annie had inadvertently helped deliver the discovery Frances had been waiting almost sixty years to make.

The historical mystery and Frances’s present-day murder are clearly connected.

Annie Solves Emily’s Murder

As Annie gets closer to the truth, someone leaves a threatening note beneath her pillow promising to put her bones in a box.

Saxon unexpectedly proposes that they work together. He believes Walter may have been financially exploiting Frances through excessive legal fees, although Annie soon discovers Saxon has secrets of his own.

Using numbers connected to Frances’s 1965 fortune, Annie opens a locked private file drawer with the combination 01-37-38. Inside are photographs showing Saxon supplying illicit medical opiates to Magda, a local paramedic. Police also confirm that a break-in at veterinarian Miyuki Takaga-Foyle’s clinic really occurred, and Saxon had been involved in distributing stolen drugs.

Yet that does not explain Frances’s murder.

Annie then visits Vicar John Oxley, who reveals another major family secret. A private paternity test arranged by Ford Gravesdown proved decades earlier that John is Laura’s biological father. Emily gave birth to Laura, and Peter Adams paid Emily in Chelsea so that he and Tansy could adopt the baby.

That information helps Annie reconstruct Emily’s final day.

Frances’s journal records that Bill Leroy, the Gravesdown family driver, took Rose to Chelsea on the day Emily disappeared. John and Walter had also intended to go but never arrived because of car trouble. Crucially, Rose was wearing Frances’s borrowed black coat—the same coat containing Frances’s revolver that was eventually found on Emily’s skeleton.

Rose had also been deeply attached to Frances and bitterly jealous of Emily’s power over her.

The answer becomes clear: Rose Forrester, later Rose Leroy, murdered Emily Sparrow.

Rose traveled to Chelsea wearing Frances’s coat, shot Emily with Frances’s revolver, and hid her body inside the leather trunk. Emily then remained in the Adams family basement for nearly sixty years.

Frances’s Killer Makes His Move

Solving Emily’s murder still leaves Annie with the more immediate question: who killed Frances?

Annie arranges to meet Magda behind the village off-licence and sends her evidence away with Beth Foyle, Archie’s granddaughter, who runs Crumbwell’s Deli.

But when Annie enters the waiting ambulance, Magda is not there.

Instead, she is attacked by Joe Leroy, Rose’s son and a local paramedic.

Joe overpowers Annie and prepares to inject her with horse tranquilizers and other drugs, intending to make her death look like an overdose. With Annie trapped, he finally explains what happened.

Frances had solved Emily’s murder after the trunk arrived and confronted Rose with the truth. The confrontation devastated Rose, whose mental health deteriorated.

Joe decided Frances had to die to protect his mother.

He manipulated Elva into unknowingly delivering the bouquet containing needles and hemlock, ensuring that Frances would believe the prophecy was closing in around her. He disconnected the battery in Frances’s Rolls Royce so she could not leave Gravesdown Hall. Then he injected Frances with the lethal dose of iron that caused her heart attack.

The elaborate bouquet was essentially misdirection. The injection was the real murder weapon.

Annie manages to fight back, and Walter and Beth break into the ambulance before Joe can kill her. Police arrive, and both Joe and Magda are arrested.

Annie Inherits Frances’s Legacy

With Frances’s murder solved, Walter declares Annie the winner of the inheritance competition.

Annie now controls Frances’s £40 million estate, but rather than allowing Jessop Fields to destroy Gravesdown, she uses the inheritance to protect the people and places Frances left behind. Laura is guaranteed the right to remain in the Chelsea townhouse, Gravesdown and the Foyle farm are protected from development, and Annie gives Frances’s antique Rolls Royce to Archie and Beth.

She also visits Rose at a psychiatric facility. Rose does not express remorse for murdering Emily. Even after all these decades, she simply insists that Emily “had to be stopped.”

One final mystery is cleared up when Oliver admits that he was responsible for the threatening messages Annie found in her room. He had used old threats from 1966 to frighten Annie and push her harder toward solving Frances’s murder. His motive was surprisingly practical: he wanted Annie to prevent Jessop Fields from acquiring Gravesdown so that the development project would collapse and he could escape the job he hated.

In October, everyone gathers on the Gravesdown lawns for Frances’s memorial wake.

Frances spent nearly sixty years recording crimes, secrets, suspicions, and clues because she believed the fortune-teller had predicted her murder. In the end, her obsessive records allow Annie to solve not only Frances’s death but the disappearance that started everything.

Among the things Frances leaves behind is a blank leather notebook.

Annie opens it and begins writing her own story.