Freyja

Set in Iceland, the novel alternates between the early 1990s, when a girl named Freyja disappears from a remote coastal valley, and 2018, when the woman who was with her that night confronts the buried truth. In a prologue, an unnamed narrator stands on a black-sand beach, holding Freyja's hand. The narrator's memory is unstable: in one version, Freyja walks into the tide; in another, the narrator holds her head underwater.

The narrator is Unnur, a single mother in Reykjavík. One Monday in 2018, she finds an envelope containing a note: "Hæ, Unna. Remember me?" Unna is a nickname only Freyja ever used. Inside are old Polaroids of the two girls and a recent photo of Unnur's seven-year-old daughter, Lilja. Because Freyja has been presumed dead since 1991, Unnur begins to wonder whether she might be alive. Born in Iceland, Unnur was sent to relatives in Connecticut after the summer Freyja vanished. She now works at a bakery, raises Lilja mostly alone, and guards her past. Lilja's father, Nói, absent for two years, is arriving for a custody meeting.

In flashback, eleven-year-old Unnur is abandoned by her Aunt Sandra, her dead mother's identical twin, in a remote stretch of Iceland's southern coast called the Dark Valley. She is taken in at Litlu-Hólar, a farmhouse belonging to Elias, a taciturn American former soldier, and there she meets Elias's daughter, Freyja, a pale girl with ice-colored eyes. Over the following months, the two form an intense bond, exploring the hills and sharing stories.

In 2018, Unnur's boss shows her an anonymous novel called The Girl Who Spoke to the Sea, based on the Freyja case. That evening, Nói arrives with a new girlfriend, Lóa, and Lóa's red-haired daughter, also named Freyja. While doing dishes, Unnur notices a burn scar on Lóa's wrist and is seized by a flashback of scalding liquid and shattered ceramic. The next morning, a newspaper appears at her door with a circled headline about a cold case project on missing girls and women, led by detective Lóa Bryndísardóttir. Unnur confirms Nói's girlfriend is the detective and realizes Lóa has been infiltrating her life.

In the 1991 timeline, Elias brings home a horse named Bjartur for Freyja, and Unnur feels jealous. Elias makes her promise to protect Freyja. Unnur overhears gossip about a local pastor whose son died and who allegedly obtained a Galdrabók, a book of magic, to resurrect the child. When the girls break into the boarded-up church, the pastor drives them out, accidentally setting the altar ablaze. Later, a severed horse head appears on a fence post outside Litlu-Hólar, and Freyja calls it a curse.

Unnur drives to the Dark Valley in 2018. At Litlu-Hólar, Elias is elderly, his memory severely impaired, but his notebook records a recent visit from someone he calls "Unnur" who took something from the attic. Shown a photo of Lóa, he identifies her as the visitor, confirming Lóa impersonated Unnur and stole her old tackle box. At the farmhouse Unnur also encounters Pétur Björnsson, the Morgunblaðið journalist who wrote the cold case article and is also interviewing Elias for a book about the American military in Iceland. On the drive back, Pétur agrees to investigate Lóa.

Events accelerate. Nói demands shared custody. Lóa confronts Unnur at the bakery, and when she removes her sunglasses, Unnur knows from her irises that Lóa is not her childhood Freyja. Unnur breaks into Lóa's house and finds surveillance photos of herself and Lilja, a file on Lóa's deceased brother, Tommi, and medical records for Lóa's daughter with nearly all tests normal, suggesting Lóa fabricates the child's symptoms. She grabs her tackle box and flees. That evening, Lilja is hospitalized with a cracked skull, and Unnur receives notice from Barnavernd, the Icelandic child protective agency, that complaints have been filed about Lilja's well-being.

At the school's Peter Pan performance, Nói announces that Lóa's daughter is missing. Matthías, a Reykjavík police detective investigating the disappearance, questions Lilja at home; she says she left school with Freyja because the girl was scared and recalls a red car. Pétur delivers devastating news: Police found a body in the Dark Valley. It is Elias. Pétur says Elias never stopped searching for Freyja, walking the valley daily and leaving the door unlocked in case she returned.

In the pivotal 1991 flashback, Elias reveals that Unnur's mother, Stella, came to the Dark Valley after leaving toddler Unnur with Sandra and died giving birth to Freyja. Freyja is Unnur's biological sister and has always known. Consumed by rage, Unnur flings scalding chocolate soup at Freyja, burning her wrist, and screams that she will kill Freyja if she sees her again. Freyja runs toward the beach.

On Friday in 2018, Lóa arrests Unnur for kidnapping, citing a GPS watch she planted in Unnur's medicine cabinet. Unnur is handcuffed in front of Lilja. During interrogation, Lóa confesses she deliberately got pregnant by Nói while Unnur was pregnant with Lilja, making their daughters half-sisters. In her cell, Unnur reads The Girl Who Spoke to the Sea and notices it includes four children, not two.

Released through Pétur's efforts, Unnur opens the recovered tackle box and finds nine overexposed Polaroids of herself on the beach the night Freyja disappeared, along with a faded photo of her mother. A full memory breakthrough follows: The blinding white she always remembered as a full moon was a camera flash. She remembers running to apologize and finding Freyja atop the cave with a stranger carrying a camera. A red car idled on the road. The stranger grabbed Freyja's wrist and let go; Freyja ricocheted into the sea. Lying on the sand, Unnur told the stranger, "I'll remember this" (244). The girl fired her flash, kicked Unnur's temples, and replied, "No, you won't" (244).

At Elias's farmhouse, Lóa reveals her history. Her brother Tommi was born with a chronic illness. When the family returned to the Dark Valley, Tommi befriended Freyja. After Tommi died, Lóa blamed Freyja, believing she was one of the huldufólk, the hidden people of Icelandic folklore, who had swapped Tommi for a changeling. Lóa now believes the same has happened to her own daughter. She reveals she picked Lilja up that morning and left both girls stranded on sea stacks above the cave at rising tide.

Unnur races to the beach, plunges into the surf, and climbs the slick basalt. She brings Lilja to shore first, then turns back for Lóa's daughter, carrying her to safety as rescue volunteers arrive.

In the resolution, the full picture assembles. Lóa killed Freyja in 1991 to avenge Tommi and targeted Unnur as the witness and the person Freyja loved most. The pastor witnessed the struggle that night but kept silent; his deathbed confession corroborates Unnur's memory, and he wrote The Girl Who Spoke to the Sea. Elias's death is ruled a homicide traced to Lóa, who faces one of the longest prison sentences in Icelandic history. Lóa's daughter enters foster care; Nói's paternity is confirmed.

In a 2019 epilogue, Unnur shares custody with Nói, and Pétur is her partner. Lilja tells everyone she has a sister. Unnur sells Elias's farmhouse, donating the proceeds to the children's hospital in Tommi's memory. She drives to the Dark Valley, stands at the mountaintop, and at the horizon's seam chooses to see a small, incandescent girl above the surface, acknowledging that water does not get stuck. It finds a way.