Sadie

Sadie is Henry Page’s sister. The book gives her a limited but distinct presence through two details: a handwritten apology preserved by a teacher at school, and a career whose inspiration is traced in the author’s notes to research on the brain during a breakup.

Identity and Career

Sadie’s family connection to Henry Page establishes her place in his immediate circle, while the author’s notes identify her career as an element shaped by research into the neuroscience of heartbreak. The notes point specifically to an interview with Lucy Brown, a neuroscientist at Yeshiva University, in a 2014 article about the brain during a breakup. They present this research as a direct inspiration for Sadie and her career, tying her characterization to the book’s attention to the bodily and psychological dimensions of romantic loss.

The Handwritten Apology

During the school newspaper’s effort to publish its redemption-themed issue, a framed copy of Sadie’s handwritten apology remains on Mr. Hotchkiss’s desk for the rest of senior year. The episode does not explain what prompted the apology, but the detail gives it a lasting presence: amid a dispute over whether the issue may be released, her words become an object kept in public view rather than a passing contribution.

Narrative Significance

The available details associate Sadie with two forms of reckoning: the apology preserved at school and the neuroscience of heartbreak that informed the conception of her career. These connections place her at the edges of the novel’s concerns with remorse and emotional pain without supplying a fuller account of her actions or personal history.