Chapter 31 (Chapter 30) Summary: The 1986 Birthday Flashback

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

Summary

The chapter opens at 3:00 a.m. on October 31. The videotape from the previous chapter ends abruptly, and the eighty clocks in the hallway finish chiming. Lily dismisses the tape as nonsense, but Rose believes staying together prevented another disappearance since no one vanished during the third hour. Trixie reveals she knows she was attacked at 2:00 a.m.; the family had been hiding the truth from her. A brief scare over Poppins the dog—who appears lifeless until Rose mentions food—relieves the group. Conor rechecks the locked doors and windows.

Then the narrative shifts into a long flashback to 1986, Rose’s sixteenth birthday at Seaglass. Ten-year-old Daisy feels excluded and jealous of her sisters’ boarding-school life and social skills. The flashback reveals several crucial family dynamics: Nana knows it was Daisy who cut off Lily’s hair; Nana tells Daisy she will always be her favorite and advises her that “success is the best revenge.” Daisy watches Rose and Conor kiss inside a dark cupboard during a party game. Later, alone in her sisters’ bedroom, Daisy takes scissors to the pale blue dress their mother gave Rose, shredding it and hiding the pieces under Rose’s pillow, then placing the scissors on Lily’s bedside table. The act is meant to frame Lily as the culprit, and it succeeds—sparking a silent war between the sisters. The flashback ends with Daisy’s narration confirming that everyone thought it was an act of revenge, and they were right about that.

Key Events

The videotape ends; the clocks strike 3:00 a.m.; the family has survived one hour without a disappearance.
Rose suspects a pattern of one attack per hour; Trixie admits she knows what happened to her.
Poppins appears dead but is just sleeping deeply.
Flashback: Rose’s sixteenth birthday in 1986 at Seaglass.
Daisy (age 10) is sent to bed early; she sneaks into her sisters’ room.
Daisy puts on Rose’s new blue dress, applies makeup, and backcombs her hair.
She reads a line from a “hush poem” hidden in Rose’s diary.
She spies on the party game where Rose and Conor are locked in a cupboard and kiss.
Daisy destroys the blue dress with scissors and frames Lily.
The flashback confirms Nana already knew Daisy cut Lily’s hair earlier that year.

Character Development

Daisy: The flashback deepens her character as the overlooked, jealous youngest child. Her actions show a mix of desperation for attention and a capacity for calculated revenge. The line “I’ve always been a little awkward around real people” explains her adult social isolation.
Rose: Portrayed as the gifted, favored sister, the object of Daisy’s jealousy. Her relationship with Conor begins here.
Lily: The middle sister who tends to act out; she cries when Rose and Conor kiss, suggesting her own feelings for Conor.
Nana: Revealed to be perceptive and protective of Daisy. She keeps Daisy’s secret about the haircut and offers cryptic advice.
Nancy (mother): Shows favoritism toward Rose and wants to hide Daisy away, contributing to Daisy’s resentment.
Conor: Already attracted to Rose; his role as the family outsider deepens.

Themes, Symbols, or Motifs

Jealousy and revenge: Daisy’s destruction of the dress is a direct act of envy toward Rose’s position. The scissors reappear from the earlier hair-cutting incident, now used again as a tool of sabotage. Nana’s advice (“Success is the best revenge”) foreshadows Daisy’s later life choices.
Seeing and being seen: Daisy repeatedly describes herself as invisible (“other people just don’t see me”). The flashback explains why she later narrates her story with such intensity.
The hush poem: The twisted lullaby (“Mama’s gonna trap you inside a dream”) echoes the novel’s atmosphere of entrapment and fear. It may also foreshadow the darker events of the present.
Boarding school as division: Education separates the sisters, giving Rose and Lily a shared life Daisy cannot access. This structural inequality feeds Daisy’s loneliness.
Time and clocks: The chapter opens with clocks chiming three a.m., reinforcing the countdown to low tide and the deadline for escape.

Why This Chapter Matters

Chapter 31 provides the novel’s deepest exploration of Daisy’s childhood and the origins of the family feud. It answers the long-standing question of who cut Lily’s hair (Nana already knew) and reveals the real culprit behind the ruined birthday dress—Daisy, not Lily. This backstory reframes the reader’s understanding of Daisy’s narration: she is not a passive victim but a participant in the family’s pattern of cruelty and deception. The chapter also establishes Rose and Conor’s early romance, which continues into the present, and plants seeds for future conflicts. Without this flashback, the adult tensions among the siblings would lack emotional grounding.

Study Questions and Answers

1. Why does Daisy destroy Rose’s birthday dress, and how does she frame Lily?
Daisy is consumed by jealousy because she feels invisible and ignored. She steals the dress, wears it, then cuts it into ribbons with scissors. She hides the shredded fabric under Rose’s pillow and places the scissors on Lily’s bedside table, making it appear that Lily vandalized the dress in retaliation for some earlier slight. The blame sticks, igniting a silent war between Rose and Lily.

2. What does Nana mean when she tells Daisy, “Success is the best revenge”?
Nana suggests that instead of acting out destructively, Daisy should focus on achieving something in her own life. The advice implies that proving oneself through accomplishments is more powerful than petty acts of sabotage. The flashback shows Daisy does not take this advice at age ten, but in the novel’s present, her role as a published author may reflect a later attempt to follow it.

3. How does the hush poem found in Rose’s diary connect to the novel’s tone?
The poem is a dark twist on a traditional lullaby, mentioning a pillow over the face and the line “Sometimes we live, sometimes we die.” It reinforces the book’s gothic, unsettling atmosphere and the theme of hidden dangers within a seemingly safe family home. The poem also hints at the possibility that Rose—or someone—has violent impulses beneath a calm exterior.