General Understanding:
* What is the central mystery in "Aller-Retour"?
* What are the main themes explored in the book?
* How does Vargas use humor and suspense in "Aller-Retour"?
* What is the role of the protagonist, Adamsberg, in the story?
* How does the setting of Paris contribute to the atmosphere of the novel?
Character Analysis:
* What are the strengths and weaknesses of Adamsberg as a detective?
* How does Vargas portray the relationship between Adamsberg and his colleagues?
* What motivates the characters involved in the crime?
* How do the characters' backgrounds and personal histories influence their actions?
Plot and Structure:
* How does the narrative structure of "Aller-Retour" contribute to the suspense?
* What is the significance of the title "Aller-Retour"?
* How does Vargas use flashbacks and foreshadowing in the novel?
* How does the ending of the book resolve the central mystery?
Themes and Symbolism:
* How does "Aller-Retour" explore themes of identity, loss, and redemption?
* What are the symbolic meanings of the objects and places in the novel?
* How does Vargas use language and imagery to create a sense of mystery and intrigue?
* How does the book comment on society and human nature?
Personal Response:
* What did you find most compelling about "Aller-Retour"?
* What were your favorite moments or scenes in the book?
* How did the book make you feel?
* What are your overall thoughts on "Aller-Retour"?
Remember to adjust the questions based on your specific purpose and the context of your discussion.