Gather initial thoughts and broad opinions about the book.

1. The Murder at World’s End pays homage to Golden Age detective fiction. How did you feel it compared to classic mysteries, like those by Agatha Christie? Did it successfully update the genre?

2. What was your initial reaction to the setting of the 1910 Halley’s Comet panic? How effectively do you think the author integrated this real historical event into his novel?

3. The final reveal involves a complex plot by Temperance and Mr. Stokes. Did you find the resolution of the locked-room mystery satisfying? What clues, if any, stood out to you as the story unfolded?

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

1. Stephen Pike arrives at Tithe Hall as an outsider, judged for his criminal past and working-class background. Have you ever felt like an outsider in a new environment? How did you react in that situation?

2. Miss Decima sacrificed her scientific ambitions for family duties, only to have her work stolen by the Viscount. Think about a time when you’ve had to balance your personal goals with the expectations of others. How do you navigate those kinds of pressures?

3. Throughout the story, the servants are expected to be invisible. Can you recall a situation where you felt overlooked or underestimated?

4. Miss Decima and Stephen form an unlikely partnership, crossing class and generational divides. Have you ever formed a surprising alliance with someone very different from you?

5. The characters are physically trapped on the island by the tide and the storm. Thinking about your own life, have you ever been in a situation that felt claustrophobic, whether literally or metaphorically? How did that feeling of confinement shape your actions or perspective?

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

1. The novel centers the upstairs, downstairs class divide of the Edwardian era. In what ways do you see similar social hierarchies or class tensions playing out in society today?

2. Viscount Stockingham-Welt fixates on the global panic surrounding the arrival of Halley’s Comet. How does this historical hysteria compare to the spread of conspiracy theories or media panic in the modern world? What parallels do you see in how people react to fear and uncertainty?

3. Miss Decima is a brilliant woman whose intellect is dismissed and exploited by the men in her family. What does her character reveal about the role of women, especially in scientific fields, during this period? How much progress do you think has been made since then?

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

1. The story is told from Stephen’s first-person point of view. How did experiencing the events through the eyes of a servant, rather than an aristocratic detective, shape your understanding of the mystery and the family conflicts?

2. Montgomery is an award-winning author of children’s literature. Can you see any influence from his novels for children, such as I am Rebel, in the style, characterization, or plotting of this adult mystery?

3. The final chapters subvert the traditional mystery ending by allowing a murderer to escape and another to control their own fate. What did you think of Miss Decima’s version of justice? Was it a fitting conclusion for characters like Temperance and Mr. Stokes, given their motivations?

4. Consider the theme of competing narratives. How do characters like the Viscount, Inspector Jarvis, and Miss Decima each try to impose their own version of reality on the events at Tithe Hall? Which narrative ultimately “wins,” and why?

5. Mr. Stokes’s actions are driven by a complicated mix of guilt, loyalty, and a desire for justice. How did your perception of him change as his arc progressed? What does his story say about the nature of loyalty and the breaking point a person can reach?

Encourage imaginative and creative connections to the book.

1. If you were casting a film adaptation of The Murder at World’s End, which actors would you choose to play the central duo of Stephen Pike and Miss Decima Stockingham? What qualities would make them perfect for these roles?

2. The novel ends with Stephen and Decima moving to London to start a detective agency. Describe their first case as an official investigative pair. Would it be another high-society murder, or something completely different?