Lethal White

The fourth installment in the Cormoran Strike series, this novel follows the London-based private detective and his partner, Robin Ellacott, as they investigate a government minister's blackmail and, later, his suspicious death.

The novel opens at Robin's wedding reception in Yorkshire, where Strike arrives battered and stitched after capturing the serial killer known as the Shacklewell Ripper the night before. He has driven from London to ask Robin to return to work. The day turns volatile when Robin discovers that her new husband, Matthew Cunliffe, secretly deleted Strike's phone messages before the ceremony. Robin confronts Matthew, removes her wedding ring, and they argue furiously. She and Strike share an emotional embrace on the stairs; neither says what they most want to say, but Robin agrees to return with a proper contract.

One year later, publicity from the Ripper case has transformed Strike's small agency, forcing him to hire subcontractors, including Sam Barclay, a sharp Glaswegian ex-soldier. Robin stayed married to Matthew after he fell gravely ill on their honeymoon, trapping her in a marriage she had been about to end. She has been quietly receiving therapy for post-traumatic stress disorder (PTSD) stemming from her encounters with the Ripper, including panic attacks she hides from those around her. The partners are polite but distant. Strike is casually dating Lorelei Bevan, a vintage clothing store owner, though he keeps the relationship deliberately shallow.

Their equilibrium is disrupted when Billy Knight, a young man with a severe mental health condition, bursts into Strike's office claiming he witnessed a child being strangled years ago "up by the horse" and buried in a pink blanket "down in the dell" near his father's house. Billy flees before Strike can get his full details. Strike traces Billy to East Ham and discovers that Billy's older brother, Jimmy Knight, is a charismatic far-left activist. At one of Jimmy's meetings, his girlfriend, Flick Purdue, blurts out the name "Chiswell" upon learning Strike is a private detective, hinting at a connection to a prominent political family.

Jasper Chiswell, the Conservative Minister for Culture, contacts Strike. He is being blackmailed by Jimmy, who demands forty thousand pounds, and by Geraint Winn, husband of the Liberal Democrat Minister for Sport, Della Winn, who wants to force Chiswell from office. Chiswell hires Strike to find compromising information on both blackmailers. When Strike mentions Billy's story, Chiswell responds with unsettling calm, saying he has "no deaths on my conscience" but that "one cannot be held accountable for unintended consequences." The Knight family grew up on Chiswell's estate, where their father, Jack o'Kent, worked as an odd-job man.

Robin goes undercover as "Venetia Hall," posing as Chiswell's goddaughter and working in his parliamentary office at the House of Commons. She plants listening devices in Winn's adjacent office, discovering that Winn's assistant, Aamir Mallik, is being pressured to obtain incriminating photographs from the Foreign Office and that Winn's charity has significant funds unaccounted for. Meanwhile, Barclay infiltrates Jimmy's circle by posing as a disillusioned ex-soldier.

Raphael Chiswell, the minister's handsome half-Italian son, has recently begun working in his father's office. He is charming and confiding with Robin, sharing family secrets and expressing anger toward his dead elder brother, Freddie Chiswell, whom their father worshipped. Kinvara Chiswell, the minister's second wife, is suspicious and possessive, convinced her husband is having an affair with Robin.

On the night of a Paralympian reception at Lancaster House, Strike fights Jimmy in a crowd to destroy a provocative placard depicting Chiswell on a gallows. Inside, he encounters Charlotte Campbell, his ex-girlfriend of sixteen years, now married and pregnant. The evening exposes deepening fractures in the Chiswell household.

The next morning, Robin arrives at Chiswell's Ebury Street house and finds him dead, his head sealed in a plastic bag connected to a helium canister. She photographs the scene, documenting a glass of orange juice with powdery residue, a farewell note from Kinvara, a cracked tube of homeopathic lachesis pills, and a bent sword. Della obtains a super-injunction to keep the story out of the press.

Izzy Chiswell, the minister's elder daughter, hires Strike to investigate, convinced her stepmother killed her father. Through a forensic contact, Strike and Robin learn that Chiswell ingested amitriptyline, an antidepressant, dissolved in his orange juice, that abrasions on his face suggest the bag was forced over his head, and that Kinvara has an airtight alibi. The evidence indicates the killing required two people.

Robin's personal life collapses when she discovers that Matthew has been having an affair with his longtime friend Sarah Shadlock. She tells him the marriage is over and leaves. Going undercover as "Bobbi Cunliffe," Robin gets a job at a Camden jewelry shop where Flick works. At a party at Flick's flat, Robin discovers a piece of Chiswell's writing paper hidden in the bathroom, bearing cryptic notes including "Blanc de blanc," "Bill" circled, and a Latin quotation from Catullus.

Strike visits Billy in a psychiatric hospital. Now medicated and coherent, Billy describes being drugged as a child and carried up to the White Horse of Uffington, an ancient chalk figure carved into the hillside near Chiswell House, where he witnessed a man strangle a child. Strike and Robin later dig in the dell at night and unearth not a child's body but the skull of a horse wrapped in a pink blanket. At Chiswell House, Robin discovers a painting called "Mare Mourning" hidden upstairs. Kinvara reveals the substance of the blackmail: Jack o'Kent built gallows for legal export, splitting profits with Chiswell. After Jack died, Chiswell sold the remaining gallows without paying the Knight brothers. One hijacked shipment was used for extrajudicial killings, and photographs of the gallows exist at the Foreign Office.

Strike's theory crystallizes when Robin learns from Christie's auction house that "Mare Mourning" may be a lost work by George Stubbs, the 18th-century painter, potentially worth more than twenty-two million pounds. Raphael, knowledgeable about art from his time at a London gallery, recognized the painting's value, seduced his stepmother Kinvara to gain control of it, and conspired with her to murder his father when Chiswell discovered the affair. Kinvara doctored the orange juice and established an airtight alibi while Raphael entered the house the next morning and suffocated his father. They staged the scene as suicide but left telltale errors: missing pill packaging, a door left improperly closed, and abrasions from Chiswell's brief struggle.

Raphael, posing as Matthew via text, lures Robin to a canal barge in Little Venice and holds her at gunpoint, demanding to know what the police have on him. Robin keeps him talking while Strike, having recognized the burner phone number, alerts the police and tracks her down. Strike shoulders open the barge door just as Raphael puts the gun in his own mouth, but the revolver clicks empty: Strike had removed the bullets from Kinvara's revolver at Chiswell House days earlier.

One month later, Strike, Robin, Izzy, and Billy meet at a Chelsea restaurant, where Izzy reveals the truth behind Billy's childhood trauma. The strangled "child" was the toddler Raphael, whom a drunken Freddie throttled until the boy lost consciousness but did not kill. Billy, drugged with cannabis at age five, conflated this near-fatal assault with a separate act of cruelty: Freddie's shooting of a miniature horse called Spotty, which was buried in the dell in a pink blanket. The wooden cross Robin found was placed by Izzy as a girl, mourning the pet.

Strike and Robin part in the rain, each concealing a smile, knowing they will meet again that evening for curry at the home of Strike's friends. Their partnership, strained for over a year by professional distance and personal turmoil, has been restored, and Robin walks on through the wet streets thinking about work.