Chapter Summaries

Mia successfully transformed into a crow Animagus and visited Harry, who eventually recognized her. She returned to human form and reassured Harry after he and Hermione scolded her for attempting the dangerous transformation alone.

• During a storm, Mia retrieved the buried potion, performed the Animagus incantation, and transformed into a small black crow.
• Mia flew to the unicorn stream, where the unicorns recognized and affectionately welcomed her.
• Mia flew to Lockhart’s office, landed on Harry’s shoulder, and followed him out after Lockhart objected to the crow.
• At the Room of Requirement, Mia revealed herself as the crow by striking Ron with a familiar wing movement, and Harry recognized her.
• Mia confirmed that she had become an Animagus, prompting Harry and Hermione to scold her before she retrieved her wand and changed back.
• Harry asked Mia to tell him before attempting anything dangerous again, and she agreed.

Mia hosted afternoon tea on the lawn with Hermione, Luna, Ginny, Daphne, and Astoria, and the girls discussed what they wanted in a partner. The conversation drew in several boys interested in Mia, and Harry eventually pulled his sister away after the group shared the snacks.

• Mia brought treats from the kitchen and joined Hermione, Ginny, and Luna on the lawn before Daphne and Astoria arrived.
• Daphne, Astoria, Hermione, Luna, and Ginny shared their preferences in a partner and pressed Mia to name someone she liked.
• Mia said she had no time for a relationship, and the girls realized the boys they had been discussing were standing nearby.
• Cedric greeted Mia and gave her candy, while Harry, the twins, Draco, and Theodore each tried to stay close to her.
• Theodore offered Mia his improved Potions formula, and the group sat together to finish the snacks before Harry pulled Mia away.

Mia proposed modern psychological therapies and a new potion to treat the lasting effects of the Cruciatus Curse, hoping to help Neville’s parents and others like them. Snape and the other professors supported her plan, and Dumbledore arranged for St. Mungo’s to test the treatments while Snape worked with Mia on the potion.

• Mia used her holiday to study and make a defensive gift for Theodore, while considering Sirius’s innocence and the victims of Voldemort’s attacks.
• Mia wrote down a plan to combine modern psychological treatments with a potion for anxiety and depression to address the Cruciatus Curse’s aftereffects.
• Mia brought her proposal to Snape, who agreed to study a suitable potion with her and passed the idea to Dumbledore.
• Dumbledore summoned Mia to meet with the professors, and she explained her proposal and answered their questions.
• Professor Sprout judged the approach feasible, and Dumbledore arranged for St. Mungo’s to conduct experiments while Snape took charge of the potion research.

Mia and Professor Snape’s Hope potion helped the Longbottoms respond to their surroundings, raising hopes of recovery for victims of the Cruciatus Curse. After Mia returned to Hogwarts, Harry heard a threatening voice and found a message announcing that the Chamber of Secrets had been opened beside the petrified Mrs. Norris.

• Mia and Professor Snape tested their potion on Frank and Alice Longbottom, who began responding to healers and recognizing Neville in a photograph.
• Mia proposed further testing and rehabilitation with family involvement, while Snape planned to improve the potion’s soothing effects; they named it Hope.
• Neville and students whose parents had suffered from the Cruciatus Curse welcomed Mia and Snape back to Hogwarts, and Mia encouraged Neville to hold on to hope.
• After the potion research paused, Mia joined Hermione and Ron to collect Harry from Lockhart’s office, where Harry heard a strange voice threatening to kill.
• Harry followed the voice with Mia, Hermione, and Ron, and they found spiders fleeing from a corridor and the message that the Chamber of Secrets had been opened beside Mrs. Norris’s petrified body.
• Mia examined Mrs. Norris and reassured Harry that Mandrakes could revive her.

After Mrs. Norris was found petrified beside a threatening message, Dumbledore dismissed Harry and his friends as suspects while Mia helped reassure Filch. Mia learned the legend of the Chamber of Secrets and suspected its monster was a Basilisk, linking Harry’s ability to understand snakes to Salazar Slytherin’s bloodline.

• Mia told Filch that Mrs. Norris had been petrified rather than killed, and Dumbledore confirmed she could be saved.
• Filch accused Harry, but Mia and Snape defended him, and Dumbledore cleared him for lack of evidence.
• Mia told Filch that Professor Sprout’s Mandrakes would provide an antidote for Mrs. Norris.
• Professor Snape explained that Salazar Slytherin had built the hidden Chamber of Secrets to be opened by his heir.
• Mia connected the Chamber’s heir, the attack on Harry, and Harry’s ability to understand snakes, then suspected a Basilisk was inside.
• Snape warned Mia to be careful while her theory remained unconfirmed.

Mia watched Harry’s Quidditch match, protected him and Draco from an out-of-control Bludger, and took Harry to the Hospital Wing after Gryffindor won. She returned to find Draco loudly pretending to be hurt to get her attention.

• Mia listened as Harry, Ron, and Hermione discussed the Chamber of Secrets and Hermione proposed using Polyjuice Potion to investigate Draco.
• During the Gryffindor-Slytherin match, an out-of-control Bludger damaged Harry’s broom, and Mia cast a protective charm on Wood as he fell.
• The Bludger knocked Draco from his broom, and Mia cast Protego on him before Harry caught the Golden Snitch and won the match.
• Mia destroyed the Bludger when it continued to attack Harry, then shielded him from Lockhart and took him to the Hospital Wing.
• Wood thanked Mia for saving him and invited her to watch Gryffindor practice on Saturday.
• When Mia returned to Harry’s bedside, Draco dramatically wailed to draw her attention, but she ignored him.

Mia learned that Harry could speak Parseltongue after Draco’s snake exposed his ability at Lockhart’s Duelling Club, and she sought Snape’s advice. When the school began shunning Harry as the suspected Heir of Slytherin, Mia defended him and silenced the students.

• Dobby told Harry that he had stopped Harry, Mia and Ron from reaching school and had controlled the Bludger, warning that something terrible was about to happen at Hogwarts.
• Mia, Harry, Hermione and Ron brewed Polyjuice Potion in the girls’ bathroom while discussing the Chamber of Secrets and the attacks.
• Mia brought Harry, Hermione and Ron to Lockhart’s Duelling Club, where Snape demonstrated a duel and Draco conjured a snake that Harry addressed in Parseltongue.
• Mia told Snape that Harry had spoken Parseltongue since a visit to the zoo, and Snape warned her to be careful because the Basilisk had begun attacking people.
• Mia found Harry isolated in the library and warned the students not to shun or speak against him, after which they stopped doing so.

Harry, Mia, Ron, and Hermione found Nearly Headless Nick and Justin Finch-Fletchley petrified, and Mia suspected a Basilisk was responsible. At Dumbledore’s office, Hagrid defended Harry, and Dumbledore let the four students go after Harry denied knowing anything.

• Harry, Mia, Ron, and Hermione followed a strange voice and found Nearly Headless Nick and Justin Finch-Fletchley petrified beside spiders.
• Mia suspected a Basilisk had attacked them and warned the others to be careful.
• Filch caught the four students at the scene and escorted them to the Headmaster’s Office, where Fawkes was reborn from ashes and greeted Mia affectionately.
• Dumbledore invited the students to have cocoa, and Mia told him that Snape would make his medicine bitter if he did not take care of himself.
• Hagrid came to defend the students, and Dumbledore assured him he did not believe Harry had attacked anyone.
• Dumbledore asked Harry whether he had anything to tell him; Harry said no, and Dumbledore let the four students leave.

Hermione, Harry and Ron prepared to use Polyjuice Potion to question Draco about the Chamber of Secrets, while Mia helped them and stayed out of the disguise mission. Harry and Ron learned that Draco knew little about the Chamber before the potion began wearing off, and Mia’s arrival gave them a chance to escape.

• Hermione revealed her plan to drug Crabbe and Goyle, while Mia warned her that the hair she had taken from Millicent Bulstrode was cat hair.
• Harry and Ron lured Crabbe and Goyle into eating Sleeping Draught-laced cakes, then drank Polyjuice Potion made with their hair.
• Harry and Ron entered the Slytherin Common Room and were nearly caught by Percy before Draco brought them inside.
• Draco complained that Mia had stopped speaking to him and said his father had told him the Chamber had been opened fifty years earlier, when a Muggle-born wizard died.
• As Harry’s disguise began to wear off, Mia entered with a black notebook, and Harry and Ron used the distraction to flee.

Mia found Tom Marvolo Riddle’s notebook and learned from Moaning Myrtle that a pair of enormous yellow eyes had killed her. The notebook showed Mia a memory of Tom framing Hagrid, and she left it under magical surveillance before questioning Harry about Draco.

• Mia discovered Tom Marvolo Riddle’s notebook in the abandoned bathroom and found traces of Ancient Magic on it.
• Mia questioned Moaning Myrtle, who recalled seeing enormous yellow eyes just before she died.
• Mia wrote in the notebook and spoke with Tom Riddle, who offered to show her a memory from fifty years earlier.
• Mia watched Tom Riddle speak with Dumbledore and saw him accuse Hagrid of causing Myrtle’s death.
• Mia concluded the notebook was a Horcrux, placed tracking and confinement spells on it, and asked Harry what Draco knew.