The Last Thing She Ever Did

The novel opens with a prologue set 20 years before the main events. Nine-year-old Liz Camden, her 11-year-old brother Jimmy, and their neighbor Seth Miller, also nine, join Seth's father, Dr. Dan Miller, a retired Vietnam veteran and local physician, for a fishing trip to Diamond Lake. On a canyon road, a flash flood engulfs the car. Dan pulls himself free and begins extracting the children. When he reaches for Seth, the boy shoves Liz forward, and Dan pulls her out instead. The car dislodges and is swept away with Seth inside. Seth drowns. In the aftermath, Liz's mother, Bonnie Camden, suggests Dan had been drinking that morning. A police officer's leading questions prompt young Liz to describe a sweet smell on Dan's breath, which she likens to mulled wine. No blood test confirms alcohol impairment, but the Camden family's blame campaign destroys Dan's reputation and medical practice. Dan and his wife, Miranda, retreat from community life. Miranda later dies of cancer.

In the present day, Liz, now 29 and married to Owen Jarrett, oversleeps on the morning of her second attempt at the Oregon bar exam. She has been up all night at her grandparents' old Craftsman bungalow on the Deschutes River in Bend, Oregon, fueled by Adderall and coffee. Owen left early for a critical meeting at Lumatyx, his tech startup on the verge of an initial public offering (IPO). Their marriage is strained: Owen plans to demolish the family home, which he and Liz bought from her brother, to build a mansion, while Liz clings to it as a refuge. Their next-door neighbors are Carole and David Franklin. David runs Sweetwater, a high-end restaurant downtown. Carole, a former Google executive, now pursues textile art. Their three-year-old son, Charlie, is the bridge between the families.

Rushing out late, Liz backs her RAV4 out of the garage and strikes Charlie, who has wandered into the driveway carrying a bucket of pinecones. She finds him unconscious and bleeding. Her thoughts spiral: There is Adderall in her bloodstream, the bar exam is ruined, and she is certain she will be seen as drugged and careless. Instead of calling 911, Liz carries what she believes to be the boy's lifeless body to a workbench in the garage and covers him with a paint-splattered blue tarp. She kicks the pinecones aside, grinds the blood spot on the gravel, puts Charlie's bucket in the car, and drives to Beaverton for the exam.

Carole searches for Charlie and calls 911, telling the dispatcher she believes the boy fell into the river. Detective Esther Nguyen and Officer Jake Alioto respond, and an Amber Alert is issued. A brief chapter reveals Charlie's perspective: He lies under the tarp, conscious but disoriented, calling silently for his parents before slipping toward unconsciousness.

Liz arrives at the exam but leaves after 10 minutes, unable to concentrate. That evening, Owen brings her next door to comfort the Franklins. Both couples sit in silence while Liz and Carole hold each other on the sofa.

After midnight, Liz confesses to Owen. He is furious, warning that the Adderall in her system makes the accident a crime. In the garage, Owen discovers Charlie is still alive: He sees the tarp rise and fall with faint breathing. Realizing a living child would expose them and destroy the IPO, Owen presses his hand over Charlie's face through the tarp and suffocates him. He emerges carrying a box as a cover story, exchanges casual words with a patrol officer outside, and resolves never to tell Liz what he did.

Hours later, Owen forces a sedated Liz to help dispose of what she believes is Charlie's body. They drive south on Highway 97 and place the tarp-wrapped form under junipers on a remote rancher's road. Liz's phone accidentally fires its flash; she claims to delete the photo. They wash the car at a self-service station, and Owen tells Liz they can never speak of this again. An unidentified driver, later revealed to be Dan Miller, follows them to the site and finds Charlie under the tarp. Later revelations confirm the boy survived Owen's suffocation attempt, and Dan found him alive.

The investigation stalls over the following weeks. Esther pursues leads that go nowhere, including Brad Collins, a registered sex offender from Ohio with a solid alibi. Amanda Jenkins, David's assistant at Sweetwater, contacts Esther to report that David resented Charlie and complained about a prenuptial agreement restricting his access to Carole's wealth. Matt Henry, the canoe paddler, provides GoPro footage showing Charlie's sneakers walking away from the river and Dan Miller watching from his window with binoculars. Esther visits Dan, who claims he saw nothing.

Liz's guilt manifests in weight loss, hair loss, and a rash. She comforts Carole daily, sickened by her own duplicity. Owen intensifies his control, ordering Liz to destroy her phone and whispering in bed that if she crumbles, he will kill her. He practices a fake 911 call, rehearsing the discovery of Liz's staged suicide. Carole leaves David after accusing him of infidelity and moves into the Jarretts' guest room.

On the morning the venture capital deal closes, Owen discovers his partner, Damon West, held a private breakfast with the investors and seethes at being sidelined. He writes a forged suicide note on expensive blue stationery in Liz's name. He also plants a false lead, telling David he saw Ohio license plates near the park the morning Charlie vanished. David, fixated on Collins, takes the bait, breaks 10 years of sobriety, and savagely beats Collins at his motel. Collins is hospitalized with life-threatening injuries. When Collins regains consciousness and identifies David, Esther arrests David at Sweetwater. A call from a loan officer later reveals David was at the bank the morning of Charlie's disappearance, securing a line of credit for Sweetwater rather than meeting another woman. Owen is also revealed to have been Amanda's former lover.

Liz drives to the dump site and finds no trace of Charlie's body. When human remains are discovered off the highway, they belong to a teenage girl, not Charlie. Owen feeds Liz sedatives and threatens her as she insists on confessing. She drives to the police station, but Owen, who installed a tracker on her phone, pulls her out before Esther can see her.

Liz notices Dan Miller has vanished from public view. She crosses the river to his house, enters through an unlocked window, and discovers a bottle of Old Spice cologne in his bathroom. She realizes the sweet smell she described to police 20 years ago was cologne, not alcohol: Dan had not been drinking the morning of the flash flood. She hears faint crying from behind a basement door. Dan appears and reveals he followed Owen and Liz the night they dumped Charlie and found the boy alive with a severe concussion. He has kept Charlie in a fortified basement room for nearly a month. He tells Liz she should have been the one to die at Diamond Lake. He attacks her with a scalpel, slashing her shoulder; Liz fights back, slams his head against the concrete floor, and kills him. Charlie emerges from the locked room, healthy and clean. Liz carries him across the footbridge and places him in Carole's arms.

At the hospital, an MRI reveals a healed closed-head concussion. Charlie has retrograde amnesia covering the period of his injury and abduction. Esther processes Dan's basement and finds the paint-splattered tarp, noting a pink splash that matches the color of the Jarretts' front door.

Liz is hailed as a hero, but she discovers Owen's forged suicide note in his sock drawer. She confronts him and demands he resign from Lumatyx and leave Bend, threatening to expose a photograph stored on the cloud showing him carrying Charlie's body. The photograph, the cloud storage, and the law professor she claims to have contacted are all fabrications, a bluff learned from Owen's own methods. Owen resigns, forfeiting his stock windfall, and leaves. Esther, still troubled by loose ends, visits Liz with the tarp, points to the pink paint splash, and asks what Liz really came to the station to say. Liz acknowledges she must confess but says Carole needs to hear it too. The novel ends as Liz tells Esther they need to go next door.