Gather initial thoughts and broad opinions about the book.

1. The novel juggles two major investigations: the hunt for serial killer Kent Middleton and the conspiracy behind Deputy Quigley’s murder. Which of these two plotlines did you find more compelling, and what about it captured your attention?

2. Michael Connelly has created a rich universe of characters, and Detective Renée Ballard has appeared in her own series. How did you feel about her role here as a supporting character to Stilwell? If you’ve read other Connelly books, how does Stilwell’s journey compare to that of protagonists like Harry Bosch or Mickey Haller?

3. What was your reaction to the novel’s ending, with Stilwell shutting down the substation cameras and calling the press? Did you find it to be a satisfying and believable conclusion to his conflict with Captain Corum and the department?

Encourage readers to connect the book’s themes and characters with their personal experiences.

1. Stilwell is an investigator exiled to what’s called the “Island of Misfit Toys” after a past mistake (182). Have you ever felt professionally sidelined or underestimated in a role? How did you approach that situation, and how does your experience compare to Stilwell’s quiet determination?

2. When have you faced a choice between following the established rules of a group and doing what you personally felt was right? How does that experience connect with the dilemma Stilwell faces when he must decide whether to protect the department or expose the truth?

3. How do you view the theme of Isolation Amplifies Vulnerability playing out in the story in comparison to reality? Think about a time when you felt isolated, either physically or emotionally. Did that feeling make you feel more secure or more vulnerable?

4. Detective Simon risks his reputation by using a burner phone to covertly help Stilwell after the department forces him into retirement. Have you ever risked one connection to protect another? What kinds of relationships might you prioritize over your career?

5. Stilwell’s relationship with Tash Dano represents the peaceful, grounded life he stands to lose by pursuing a dangerous truth. Think about a time when you had to balance personal happiness and security against a professional or ethical obligation. What did you learn from that experience?

Examine the book’s relevance to societal issues, historical events, or cultural themes.

1. How does knowing the real history of the LAPD’s controversial SIS unit, nicknamed the “Death Squad,” affect your reading of their involvement in the Middleton surveillance? Does this context make the operation feel more realistic, or does it raise questions for you about their methods?

2. The theme of Institutional Protection Enables Violence is a major focus of the novel. In what ways does this fictional portrayal of the sheriff’s department reflect or comment on real-world conversations about police accountability and reform?

3. What does the novel suggest about the transfer of military skills and culture into civilian law enforcement? How did Lieutenant Lambert’s identity as a decorated Marine scout sniper shape your understanding of his actions and his belief that he can operate above the law?

Dive into the book’s structure, characters, themes, and symbolism.

1. Why do you think Connelly chose to structure the narrative around two separate but parallel investigations? How did the minor cases involving the vineyard and the graffiti impact your understanding of the novel’s structure?

2. In what specific ways does Middleton’s arrogance directly lead to his capture? How does this structural choice align with police procedurals as a genre?

3. What is the significance of the Catalina ironwood as a recurring symbol? Why do you think Connelly chose Ironwood as the title of the novel?

4. How did the motif of “blue smoke,” as described by the lawyer Benito Martinez, help you understand the moral ambiguity and deliberate obstruction within the sheriff’s department? Where else in the story did you see this kind of manufactured murkiness at play?

5. Between Middleton and Lambert, which of these characters did you find more frightening, and why? How does this pairing challenge your ideas of what makes a character a villain?

Encourage imaginative and creative connections to the book.

1. Imagine you’re the reporter Lionel McKey, and you’ve just received Stilwell’s explosive call at the end of the book. What would be the headline and the opening paragraph of your front-page story?

2. If Middleton hadn’t died by suicide, what do you think his trial would have been like? As a juror, which piece of evidence would have been most convincing to you?

3. Picture yourself adapting this novel for the screen. Which single scene do you believe is the most important for capturing the heart of the story, and how would you direct it to create maximum suspense and emotional impact?