The Book of Cold Cases by Simone St. James: Summary and Study Guide

⚠️ Spoiler Warning: This guide contains detailed spoilers for the entire novel. Proceed only if you've finished reading or are comfortable knowing the plot.

For a deeper dive, explore the ending explained page or the Q&A section.

You can also test your knowledge with the quiz or use the essay prompts for further analysis.

This guide is designed to help you understand the novel's plot, characters, themes, and symbols, and to provide a comprehensive study companion.

All story details are grounded in the text and chapter outline.

Let's begin with the essentials.

Quick Facts

• Author: Simone St. James

• Publication Year: 2022

• Genre: Mystery thriller with supernatural elements

• Setting: Claire Lake, Oregon, primarily 2017 with flashbacks to 1977 and earlier

• Narrator: Third-person limited, alternating between Shea and Beth

• Main Characters: Shea Collins, Beth Greer, Lily Knowles, Michael De Vos, Joshua Black, Ransom Wells

• Key Themes: The Persistence of the Past, True Crime Obsession as Trauma Response, Media and Public Perception vs. Evidence, Family Secrets and Generational Trauma, The Ambiguity of Guilt and Justice

• Key Symbols: Red shawl, Ashtray, “I'm still here,” Clock tower

Short Summary

In 2017, Shea Collins, a true-crime blogger and medical receptionist, recognizes Beth Greer, the woman acquitted of the 1977 “Lady Killer” murders, in her waiting room. Shea, who survived a childhood abduction, becomes obsessed with interviewing Beth. Beth agrees, and as Shea investigates, she uncovers a web of family secrets, supernatural hauntings, and a hidden half-sister, Lily. The truth emerges: Lily was the real killer, and Beth killed her to stop the murders. The novel explores how the past persists, how trauma shapes obsession, and how justice is never clean.

Full Summary

Introduction: The Town and the Mansion

The novel opens with a description of Claire Lake, Oregon, and the Greer mansion perched on a hill overlooking the town and ocean. The mansion, bought by Julian Greer in 1950 with his pharmaceutical fortune, was remodeled to please his wife, Mariana, who kept the curtains closed. By 1975, both parents are dead—Julian shot in a home invasion, Mariana in a car crash. The house itself seems haunted, with unexplained movements and handprints appearing on windows.

Shea's Encounter with Beth

In September 2017, Shea Collins, a divorced twenty-nine-year-old, works as a receptionist at a doctor's office. She runs a true-crime website called the Book of Cold Cases, where she writes about unsolved murders. One day, Beth Greer walks into her office. Shea recognizes her as the infamous Lady Killer suspect, acquitted in 1978. Shea follows Beth after her appointment and asks for an interview. Beth agrees, and they meet at the mansion.

The Interviews and the Haunting

During their conversations, Beth reveals details about her life, her parents, and the trial. Shea experiences supernatural phenomena in the mansion: taps turning on by themselves, cupboards opening, blood in the sink, and a whispered phrase, “I'm still here.” Shea also meets retired Detective Joshua Black, who tells her he never believed Beth was guilty. Black reveals that the ballistics from the Lady Killer murders matched the gun used to kill Beth's father, Julian.

The Investigation Deepens

Shea and private investigator Michael De Vos dig into records. They discover that Beth's mother, Mariana, was sent to a home for unwed mothers in the 1950s, not a mental hospital. This leads to the revelation that Beth has a half-sister, Lily Knowles. Lily was born in 1952 to Mariana, and her father is unknown. Lily was raised in foster care and visited the Greer mansion each Christmas. Shea learns that Lily was dangerous and likely committed the Lady Killer murders, as well as other unsolved killings.

The Truth About Lily

In a climactic interview, Beth admits that Lily was the killer. She explains that Lily killed their father, Julian, in 1973, and later killed two random men in 1977, leaving notes. Beth covered for Lily, and when Lily returned after the trial, Beth killed her with an ashtray and drowned her in a bathtub, hiding the body. The body is discovered decades later, and DNA links it to Beth.

The Climax and Resolution

Shea, determined to find answers, breaks into the mansion while Beth is away. She is confronted by Lily's ghost, who drags her to the cliff and pushes her over. Shea survives, badly injured, and is rescued. In the hospital, she reveals the truth to Michael and Detective Black. Beth is investigated, but she dies suddenly of a brain aneurysm before she can be charged. The novel ends with a new family moving into the mansion, but the haunting persists—lights appear in the windows, and the past refuses to be erased.

The Ending

The final chapters show the aftermath: Shea becomes a public figure, testifies at her abductor's parole hearing (which is denied), and receives the red shawl Beth wore at her acquittal. Beth's death leaves the case unresolved in legal terms, but the truth is known. The mansion's new occupants experience supernatural occurrences, suggesting that the past—and Lily—are still present.

Main Characters

• Shea Collins: A true-crime blogger and medical receptionist who survived a childhood abduction. She investigates the Lady Killer case and becomes obsessed with Beth.

• Beth Greer: The wealthy, reclusive woman acquitted of the 1977 murders. She agrees to be interviewed by Shea and harbors the secret of her half-sister's crimes.

• Lily Knowles: Beth's half-sister and the true killer. Her ghost haunts the Greer mansion.

• Michael De Vos: A former police officer turned private investigator who helps Shea and becomes her romantic partner.

• Joshua Black: The retired detective who investigated the Lady Killer case and believed Beth was innocent.

• Ransom Wells: The Greer family lawyer who defended Beth and secretly loved her mother. He gives Shea evidence.

Themes

• The Persistence of the Past: The novel explores how unresolved history—both literal hauntings and buried family secrets—continues to shape and disrupt the present.

• True Crime Obsession as Trauma Response: Shea's fixation on unsolved murders serves as a coping mechanism for her own abduction trauma, but also becomes a dangerous obsession.

• Media and Public Perception vs. Evidence: The book critiques how media narratives and public opinion can convict someone without physical proof.

• Family Secrets and Generational Trauma: Hidden pregnancies, illegitimate children, and parental neglect create a cycle of secrecy and violence across generations.

• The Ambiguity of Guilt and Justice: The novel complicates the idea of a clear-cut guilty party, showing how characters cover for each other and justice remains imperfect.

Symbols

• Red shawl: A recurring red shawl that Beth wears at key moments, symbolizing false empowerment, maternal legacy, and the complicated bond between Beth and Shea.

• Ashtray: A heavy glass ashtray that appears as a relic of Julian Greer and becomes the weapon Beth uses to kill Lily, symbolizing inherited violence and the inescapable past.

• “I'm still here”: A whispered phrase heard by Shea and later repeated on her phone, representing the persistent haunting of the past and the presence of Lily.

• Clock tower: A recurring symbol of random violence and the threat of a shooter, associated with Lily's influence and the fear of senseless murder.

Ending Overview

The novel's ending reveals that Beth killed Lily to stop her murders, but the legal system never convicts Beth because she dies of a brain aneurysm. Shea survives her fall and becomes a public figure, while the mansion remains haunted. The red shawl is mailed to Shea, and the new family in the mansion experiences supernatural phenomena, underscoring the theme that the past cannot be erased. For a detailed analysis, see the ending explained page.

Chapter-by-Chapter Summary

The following table provides a concise summary of each chapter. Click the chapter number to read the full summary.

| Chapter 48 | New family moves;