The girls get a room at a nearby B&B, where they have no choice but to share a queen bed. Sade worries that she was the last person with Jude and that she will be a suspect in his death, and Persephone tries to talk her down. After turning out the lights, Persephone quietly admits in the darkness that she is “relieved” that Jude is dead.

In the morning, Sade is embarrassed to discover she slept “holding [Persephone] like a koala would a tree” (281), but the other girl doesn’t seem to mind. As they head back to campus, Persephone urges Sade to “stay calm” and “act normal” as the drama of Jude’s death starts to unfold. She assures Sade that the school won’t be able to keep track of who was at the party, and they have no reason to suspect Sade. Signing back into campus, Persephone tells the matron they were at a party for her uncle’s birthday.

The chapter closes with a diary entry in which the writer replays a tape of someone accusing them of being a liar and claiming no one will believe them. The writer isn’t sure what is true because they “can’t remember anything” (285).

On Monday morning, Headmaster Webber calls an emergency assembly announcing Jude’s death. The school is placed on lockdown, and all students who attended the party are expected to “come forward.” Baz complains about “how obvious it is that the school cares more about their white golden boy than Elizabeth” (288).

Back in her room, Sade’s light bulb flickers, and she remembers the box of UV bulbs addressed to Elizabeth. She replaces hers with one of the UV bulbs, and the room is filled with a strange bluish light. Sade looks at Elizabeth’s side and sees the walls are covered with writing and drawings. On one wall, the words “the Fishermen are rapists” has been written over and over (289). On another wall, Elizabeth has written lists of names, matching boys at school to their usernames in the Fishermen chat. She has also written a password for something called The Net. Sade realizes that Elizabeth must have found out about the chat and the boys’ crimes and planned to expose them.

Sade shows the walls to Baz and Persephone. The password unlocks a folder in the chat that contains photos from years of Hawking parties. Sade sees April in some of the photos, sitting next to August, and she wonders what the other girl knew about the Fishermen. Sade wants to show a teacher or authority figure right away, but Persephone argues their “evidence needs to be airtight” first (293). They go through the group chat together and test the boys’ codenames as passwords for photos that remain locked. The strategy works, and Persephone and Sade find innumerable “private pictures” of ANA girls, which are subject to crude and explicit comments from the group of boys. Persephone asks Sade how this all relates to Elizabeth, and Sade explains her and Baz’s suspicion someone “did something” to Elizabeth.

Baz’s first question is who sent Sade the UV light bulbs. They wonder aloud if they have enough to make Headmaster Webber listen to them, and Persephone suggests they take matters into their own hands by making the information about the Fishermen public. She suggests that the incriminating group chat combined with the GPS location Elizabeth sent Baz the night she disappeared would force them to reopen the investigation. Persephone asks to look at Elizabeth’s GPS location more closely. She is familiar with the app and shows the others how to zoom in and see what direction Elizabeth’s phone was facing when it sent the signal. It is directed west, not toward Hawking House but toward Newton. Sade immediately knows that Elizabeth was going to meet August.

On Tuesday, Webber holds another emergency assembly to announce that Jude’s death is being treated as murder. The headmaster again urges anyone with information to come forward and announces that there will be a memorial for Jude the following day. Sade stays behind as the other students file out, and she overhears the headmaster talking to the police. He argues that the school wants to keep the investigation “under wraps from the media,” worried that a “drug scandal” would ruin the school’s reputation (298). The police, however, insist that they must investigate, saying that Jude had “a myriad of drugs in his system, including Rohypnol” (299). Sade leaves, feeling “the enormous weight of her actions” crushing her (299).

On Wednesday, the new pool in the Newton Sports Center is packed with tearful students for Jude’s memorial. The coach of the boy’s swim team gives a tearful speech, as does Headmaster Webber. The school choir sings, and August unveils the completed “Ripley Swimming Pool.”

April announces that she needs to get drunk after the memorial, and Sade agrees to let her, Juliette, and Persephone convene in her room. She and Persephone go ahead to change the UV lightbulb. However, when they reach Sade’s room, there is a dead rat on the doormat. Shocked and frightened, Sade throws the rat away, but before she can think of what to do next, April and Juliette arrive. Juliette asks Sade for some paracetamol for a headache; Sade directs her to her top drawer but is distracted by a drunken text from August asking her to come to the pool.

Sade excuses herself and finds August in the new Ripley pool, still fully clothed with a bottle of wine. He approaches Sade and questions her about the party. He tells her he remembers seeing her go into Jude’s room and accuses her of being the last person with him before he died. Sade leaves without responding and heads back to Turing House. When she arrives, however, Juliette is on the floor, surrounded by paramedics and looking “deathly pale.”

At the hospital, a nurse tells them Juliette had traces of Rohypnol in her system, but she will be fine. Sade knows that everything is her fault. Back at school, Persephone explains that Juliette took the pills in Sade’s drawer, thinking they were paracetamol, but they turned out to be Rohypnol. Persephone demands to know why Sade had the pills and asks if Sade “[did] something to Jude” (308). Sade begins crying and apologizes, but she decides to tell Persephone everything.

Sade Kehinde and Jamila Taiwo Hussein were twins, called ibeji in Nigeria. Their aunt believed that twins were “split to purge the evil part of the soul,” and Sade was “the bad one” (310). Growing up, Sade always knew that Jamila was her parents’ favorite.

Two years before she started at ANA, Sade lived in London with her father and twin sister. It had been four years since her mother’s suicide, but the family remained deeply affected by the loss. Sade had always been prone to depression, and these feelings worsened after her mother died and her father became more strict and unkind. Unbeknownst to Sade, depression ran in her mother’s side of the family, and many of the women in her family were tormented by “feelings [that] came about because of both the chemicals in their brain as well as the pattern that was the men in their lives” (311).

After their mother’s death, their father insisted on keeping Sade and Jamila homeschooled and isolated. One day, Sade complained that she hated her father and blamed him for her mother’s death. Jamila defended him and confessed that he had agreed to let her attend a nearby private school. At first, Sade thought her twin meant both of them, but the deal was only for Jamila. Sade was so furious that she didn’t speak to her sister for months. Eventually, Jamila stopped trying to talk to Sade. She assumed that she had given up on Sade’s forgiveness, but she soon noticed that Jamila wasn’t coming to dinner either, and she realized something was wrong. Sade was worried about her sister, but she didn’t want to be the one who lost the fight and spoke first. One day, Jamila finally came to Sade’s room. She was so thin she looked like “a stranger” to Sade. Their father was out of town on a business trip, and the twins spent the day shopping. At lunch, Jamila apologized “for leaving [Sade] behind” (314). Sade forgave her, and that night, they slept together in Sade’s bed.

When Sade woke, Jamila was already gone. A note on her mirror read, “I’m sorry,” and Sade hurried out of bed with a pit in her stomach. She searched the house until she came to the lake in the garden, where she saw her sister’s body, wearing a white nightgown and sinking into the lake. She tried to pull Jamila from the water, swimming as hard as she could, but she only began sinking into the lake herself. When her father returned, he blamed her for her sister’s death, sobbing that “everything” had been taken from him. Sade couldn’t cry for her sister and worried she was “broken.”

A few weeks after Jamila’s death, Sade began seeing visions of her sister. Every night, the ghost of her twin would climb into bed with her and hold her tightly. Sade decided she needed to know what happened to her sister. She searched Jamila’s room and found the other girl’s journal, where Jamila described meeting a boy in her new school. For a while, the entries described a courtship with the boy, but then the entries changed. Jamila described being unable to sleep, feeling “twisted and ugly and wrong in [her] own skin” (320). She wrote about developing “an unhealthy habit” of scrolling online forums where she met other people who understood her experiences (320). An entry from March 6 read: “I think I was raped” (320). Sade finally cried for her sister. Then, she broke into her father’s office, where he kept files on everyone he knew. Sade found Jamila’s file, which contained a note regarding her expulsion from Nightingale Academy. Jamila accused a male classmate called J. Ripley of “forcing her to engage in nonconsensual relations” (321). However, Jamila failed a drug test and was expelled for “sharing and allegedly distributing drugs” to J. Ripley (321). Sade became determined to find this boy.

Sade shares a more abbreviated version of this story with Persephone, telling her that Jude killed Jamila “[n]ot immediately or physically maybe, but in all the ways that mattered” (322). She insists that she didn’t intend to kill Jude, she just wanted him “to feel as powerless as he made Jamila feel” (322). Persephone hugs Sade, apologizes for all she went through, and tells Sade that she overheard the police at the assembly saying that Jude was strangled, so Sade isn’t responsible. She also tells Sade that she had an idea for exposing the Fishermen and suggests creating a website to make their chat public.

On Friday, all ANA students received an anonymous message linking to the site called NotSoNoble. Word about the site spreads quickly, and Sade notices several of the Fishermen being called into the headmaster’s office over the rest of the school day.

That evening, she goes for a celebratory swim, not seeing her sister’s body in the water for the first time. August finds her there and again asks where she was the night of the party and what she did with Jude. Instead of answering, Sade asks August why he lied about dating Elizabeth. She accused him of sending the letter claiming to be Elizabeth’s great-aunt and the email warning Sade to “stop digging.” He still denies everything and threatens to tell the police that Sade was with Jude when he died, but Sade stands up to him, calling him a coward and insisting she isn’t afraid.

At dinner, Sade can tell something is “off” with Baz. He finally admits that he feels like “Elizabeth has been lost” in the drama of revealing the Fishermen, and he worries the focus has gone away from finding her (328). Sade hasn’t told Baz about the video of Elizabeth in the chat, and she is hesitant to reveal just how involved Elizabeth was.

Partway through dinner, Sade gets a text from Persephone, telling her to come immediately to April’s room in Franklin House. There is an emergency, and Persephone tells her not to bring Baz. Sade rushes to April’s room, where she is shocked to see Elizabeth unconscious on the bed.