Chapter Summaries

Pomona visited Grubbly-Plank and gathered birds, while Georgiana danced with Lyra Brick and realized he was not Sirius Black. As the dance stirred her old regrets, she wondered whether Sirius could finally leave now that her wish had been fulfilled.

• Pomona reflected on magical mimicry and her concerns about Cedric before finding Grubbly-Plank treating a young Centaur bitten by an Acromantula.
• Pomona asked for blue jays, then secretly entered the Fwooper habitat and caught a Fwooper among the Delphinium vines.
• Georgiana noticed Lyra Brick’s pallor and questioned him about his name, his imprisonment, and the blood tonic that had kept him alive.
• Brick urged Georgiana to focus on the dance, and she recalled the Yule Ball, Hermione’s dance with Viktor Kull, and her own missed chance with Severus.
• Georgiana wondered whether events would have changed if Sirius had visited her, then considered whether her fulfilled regret meant Sirius could leave.

Severus explained that he was building a simplified time experiment with a Golden Egg and a Fwooper’s voice, while investigating possible damage caused by the previous time journey. Pomona was summoned to a mysterious tower, and Georgiana realized that the journey might have altered the Black family’s ancestry.

• Pomona brought Severus a Fwooper, and he explained that he planned to use its final cry in an experiment that reversed sound through a Golden Egg.
• Severus told Pomona that Hermione’s returned Time-Turner had an inscription and suggested Albus might have tampered with it.
• Pomona asked Severus to bury the Fwooper rather than use its feathers for Veritaserum.
• Penelope Clearwater summoned Pomona to meet the headmaster at a tower, and Severus recognized where it was.
• Georgiana considered how the time journey might have changed Brick’s future and realized the recurring dog-related incidents could be evidence of damage to the Black family’s history.

Albus showed Pomona and Minerva that Neville Longbottom’s name had been entered in the Book of Admittance and gave Pomona a Portkey for him. The chapter revealed that Neville had been sent back to Hogwarts, where he had found a home and developed a deep interest in Herbology.

• Albus explained that the Book of Admittance had accepted Neville’s name after his magical ability became evident, and asked whether the professors had remembered his birthday gift.
• Albus gave Pomona a silver Salamander Portkey for Neville and told the professors that Hogwarts would always be open to its students.
• Pomona and Minerva left the tower, and Pomona declined Minerva’s suggestion that they trade tasks.
• Georgiana recalled that Newt had used a magical creature to bring Neville to school because Portkeys made him sick, and that Neville had grown interested in Herbology.
• Georgiana remembered that Theseus’s handsome red-and-gold Phoenix tie was a Portkey that could bring Neville back home.

Pomona argued with Sirius about remaining hidden at Hogwarts and tried to ask about a route to London, but he left after misreading her intentions. Years later, while dancing with Brick, Georgiana discussed the Marauder’s Map, Hogwarts’s possible sentience, and Brick’s time trapped in a mirror world.

• Pomona found Sirius hiding in the Hufflepuff girls' dormitory and told him it was too dangerous to leave Hogwarts while the Aurors searched for him.
• Pomona asked whether Phineas Black had used the Headmaster's authority to travel between Hogwarts and Grimmauld Place, explaining that she wanted to get Neville to the Scamander family.
• Sirius took Pomona's question as an attempt to send him away, turned into a dog, and left; Pomona later reflected that she did not see him again until before Harry's fifth year.
• Pomona considered how Sirius's homonculous Tracking Charm might have connected the Marauder's Map to Hogwarts, and how the castle might recognize its Headmasters and map living beings.
• Georgiana asked Brick about the space behind a mirror, and Brick said he had been trapped in its illusion-filled mirror world for a year after someone mistook him for a dog.
• After Brick described surviving with stored rations, the music stopped, and Georgiana left him without looking back.

Pomona recalled the 1984 Portrait Curse and hurried to find Flitwick while Severus went to eat. Georgiana reasoned that Albus might have hidden in a mirror space formed by a lake’s reflection, but ended up lost in an in-between state and called for Severus’s help.

• Pomona met the Bloody Baron outside the Potions classroom, and Severus came out and told her to stop standing around.
• Pomona mentioned the Death Eater who had infiltrated Hogwarts in 1984, then followed Severus and said she needed to find Flitwick about Harry Potter’s Expecto Patronum.
• Pomona recalled how Flitwick, Minerva, and Bill had rescued a Hufflepuff girl trapped by an ancient Black family curse that turned her body into pigment.
• Pomona considered whether Albus had placed the Philosopher’s Stone in a mirror space and arranged for it to enter Harry’s pocket.
• Georgiana realized she had entered the in-between state again and used her memory of the lake and its ripples to reason that reflective surfaces might lead to a mirror space.
• Georgiana concluded that time might not accumulate inside the space, then shouted for Severus to save her when she could not determine what to do next.

Pomona, Flitwick, and Snape investigated the lake and debated the nature of Phoebe’s blindness and the curse. Alone afterward, Pomona recalled her past with Snape and the freedom she once found in darkness, leaving her to question what she had believed about herself and Lily.

• Pomona and Flitwick discussed how Human Transfiguration could have caused Phoebe’s blindness as they followed Snape through the Forest.
• At the lake, Pomona proposed that the Patronuses exchanged across time might have caused a collision, while Snape argued that the lake’s magic involved the water element.
• Pomona reflected on the harm caused by blindness and darkness, then cast a swan Patronus to drive away a shadow and left to be alone.
• Georgiana recalled sneaking into the Slytherin dungeons under an Invisibility Cloak and seeing a woman remove her hood in Snape’s bedroom.
• Georgiana remembered telling Snape, “You can do anything you want,” and wondered whether she had believed that being alive meant she had won against Lily.

Flitwick, Severus, and Pomona discussed the strange memories in Harry Potter’s Pensieve and the protective enchantment around the lake, then split up to investigate. Pomona wrestled with her regrets over Severus and, after breaking down in the flooded corridor, approached a door that had opened by itself.

• Flitwick told Severus and Pomona that Harry Potter’s memories contained conflicting fragments and described the legends surrounding Hogwarts’s Pensieve.
• Flitwick explained that Harry’s Patronus had formed a protective enchantment that kept Dementors away, and Severus assigned him to investigate the Pensieve while Pomona questioned the trees.
• Pomona followed Severus, then reflected on her past choices, her relationship with him, and the possibility of losing him.
• Pomona cried until the corridor flooded, noticed a door open by itself, and decided to investigate despite the water and her silver satin evening gown.

Pomona reflected on enchantments, her relationships with Severus and Dumbledore, and the secrets behind the Mirror World while wading through its rising water. Phineas Nigellus Black revealed that Sirius had murdered his great-grandson and that Dumbledore had planned for the portraits to explain the truth, before Pomona drowned and lost consciousness.

• Pomona recalled Lockhart’s Valentine’s Day speech, considered Flitwick’s enchantments, and reflected on Severus’s future and Dumbledore’s warning about love.
• Severus accused Pomona of interfering in matters involving Ron, Hermione, and Hagrid’s search for a rat, then demanded she keep her promise to clear the week of Remus’s transformation.
• Pomona recalled the Age Line and Hogwarts’s barriers as she realized the Mirror World functioned like a Pensieve and wondered how she had entered it.
• Phineas Nigellus Black told Pomona that the Mirror World had an origin, usually a drop of water, and said Dumbledore had instructed the portraits to reveal the secret of the Mirror Spell.
• Phineas revealed that Sirius had murdered his great-grandson and that Dumbledore had told the portraits about the plan, while Pomona denied seeing Dumbledore murder him.
• Phineas said Regulus had become an Inferius and would remain in the cave; the water submerged Pomona and she lost consciousness.

Pomona reflected on Harry’s time loop and the way events seemed to continue along an existing path, then the story shifted to Georgiana, who woke in Brussels without her bracelet and received a note demanding she come to an inn. She discovered she could use fire magic with the Fire Opal Ring and prepared to pursue her stolen things.

• Pomona brought blue jays to Sybill Trelawney and found Phoebe and Joy in the Divination classroom, though she remembered the twins had graduated long ago.
• Pomona left the classroom and questioned whether Harry’s choices had changed the world, while reflecting on Grindelwald’s visions and Albus’s knowledge of the Mirror Spell.
• Georgiana awoke before Matilda and Margarita and discovered that someone had taken her Trembling Flower Bracelet.
• Fiegel gave Georgiana a note directing her to the inn where Miss Campini had stayed if she wanted her belongings returned.
• Georgiana burned the note with Incendio, realized the Fire Opal Ring let her use fire magic, and learned she had been found at Brussels' Grand Place.

Pomona taught the students the Wall Trapping Spell and explained how a portrait curse could trap someone outside their dimension, recalling the attack on Joy and Phoebe. Later, a clue involving a snow globe led her to recognize a Prussian man waiting outside an inn.

• Pomona demonstrated the Wall Trapping Spell on Neville and had the students practice it at the Quidditch pitch.
• Colinwater asked about the attack that trapped someone in a painting, and Pomona distinguished the Portrait Curse from the wall spell.
• Pomona used a Quaffle and Aqua Eructo to explain how someone trapped in a portrait could exist in a different dimension, then assigned everyone to practice spells.
• Pomona recalled how Joy had been rescued from the portrait and how the ordeal had changed Phoebe, while considering the old suspicion surrounding Slytherin.
• Pomona sent Neville to the Scamander family with a salamander Portkey and instructions about the Occamy and her turtle.
• At an inn, Pomona remembered the snow globe and stepped out of her carriage to meet a short, stout Prussian man.

Pomona brought a Portkey-sick Neville to the Scamanders’ home, where Tina explained the significance of Theseus’s Portkey tie. Meanwhile, Georgiana negotiated with Alt von Leschwitz and unexpectedly began wondering how the Grand Magic Express crossed the English Channel.

• Pomona supported Neville into the Scamander home after he collapsed from Portkey sickness, and Newt let them in.
• Tina told Pomona that Dumbledore had given Theseus a Portkey tie, which helped save Theseus and his companions in Berlin.
• Georgiana refused to help Alt von Leschwitz without answers and demanded that Prussia stop slave-trade financing and end its support for exiles.
• Alt explained that the League of Armed Neutrality had been established in response to English searches of merchant ships.
• Georgiana suddenly wondered how the Grand Magic Express crossed the Channel before a tunnel existed.

Pomona spoke with Tina about her past as an Auror and helped arrange a safer way to transport Neville and the Occamy, then reflected on Phoebe’s imprisonment and her own strange memories. The chapter ended with Georgiana hearing familiar Hogwarts clock-tower bells after Alt returned her bracelets.

• Tina told Pomona how Newt had saved her from the Death Chamber and explained why she had left her Auror career for family life.
• Tina proposed driving a Muggle car to transport Neville and the Occamy, and Pomona agreed the idea could be faster and safer.
• Pomona visited Neville, learned Newt had given him Herbology, and said she would return to collect him that night.
• Pomona recalled how Phoebe had been trapped in a painting and how Severus’s research materials helped them find a cure.
• Alt returned Georgiana’s bracelets and left after she asked to be alone, while she heard bells that sounded like Hogwarts’s clock tower.

Pomona searched for a practical vehicle for Tina and bought a dark purple tie for Severus, while a moonlight-themed ball was planned to celebrate his nomination. Georgiana pieced together how the Mirror World worked and wondered whether its reflective surfaces matched those in the physical world.

• Pomona learned that magical flying cars were not registered with the Ministry and decided to look for a car rental in Diagon Alley for Tina.
• Pomona bought a dark purple silk tie for Severus at Twilfitt and Tattings and left without choosing the silver-white evening gown she had admired.
• Narcissa Malfoy planned a moonlight-themed ball to celebrate Severus's successful nomination.
• Georgiana reasoned that she entered and exited the Mirror World through reflective surfaces, without choosing her destinations consciously.
• Georgiana opened a seashell-shaped compact, saw a face unlike Pomona Sprout's reflected in its mirror, and blamed Albus for driving her mad.

Pomona shopped in Diagon Alley, learned from Snape that Beauxbatons might seek Nicolas Flamel’s medicine cup at Hogwarts, and was interrupted by Cedric before she could discuss it further. Back at school, Georgiana concluded that Dumbledore might use the Deluminator to monitor Two-Way Mirrors and worried about what he had overheard.

• Pomona collected Hagrid’s cleaning supplies, bought a hundred brooms, and spoke with healer Shina about Snape’s Wolfsbane Potion entry and the potion competition.
• Snape warned Pomona through the Two-Way Mirror that Beauxbatons would send someone to Hogwarts to retrieve Nicolas Flamel’s medicine cup, and Pomona saw Cedric before they could continue.
• Georgiana considered how the Deluminator had helped Ron find Harry and Hermione and connected it to the Two-Way Mirror and Dumbledore’s possible ability to eavesdrop.
• Georgiana feared that Dumbledore had heard her private conversations, then recalled reading his love letters with Grindelwald and wondered whether his sacrifices to win had been worth it.

Pomona returned to Hogwarts with Cedric and found a damaged Two-Way Mirror, whose flaws led her to puzzle over how the interns’ mirrors had been created. Georgiana was later summoned to a prepared room, while an unknown voice invited her to explore mysteries together.

• Pomona invited Cedric to a charity afternoon tea, and he drove her back to Hogwarts in the rented Thunderbird.
• The interns gathered around Cedric and went into the tent, leaving Pomona alone in the car.
• Pomona picked up Colinwater’s damaged Two-Way Mirror and reasoned that the interns’ copied mirrors could not synchronize like paired mirrors.
• Georgiana considered how linked magical objects worked and heard a voice urge her to join it in exploring mysteries.
• Bertin told Georgiana that her room was ready, and she followed him away to sleep.

Pomona tested the graduates’ maze preparations by sending Blast-Ended Skrewts into the maze, while warning them away from the truth about the Portrait Curse. Later, Georgiana inspected her belongings and reflected on the person who appeared in the mirror, ending with Mango in her arms.

• Pomona asked Hagrid to bring large Blast-Ended Skrewts, then explained Quidditch and offered the students a misleading theory about the Portrait Curse.
• Hagrid brought the creatures, and Pomona sent two into the maze to test the interns’ work before the students entered to practice Surging Torrent.
• Pomona considered how the maze could misdirect the students and reflected on humility, choices, and knowing when to turn back.
• Georgiana watched her maids remove her jewelry and wondered whether the Prussians had examined the memories and farewell letter in her bracelet.
• A figure appeared behind Georgiana in the mirror and vanished, leaving her to consider killing him and others with Bonaparte’s meteorite-iron knife.
• Georgiana asked for Mango and cradled the wingless bird of paradise like a baby.

After the maze battle, Pomona arranged treatment for the injured and prepared to attend a Ministry party with the Scamanders. Meanwhile, Georgiana reflected on the Vanishing Cabinet, her memories of Hogwarts, and her complicated bond with Neville, ending with regret over a past choice.

• Pomona and the others treated the injured after two Blast-Ended Skrewts were trapped, and Cedric squeezed Flobberworm mucus for Invigoration Potion.
• A delivery truck brought cleaner and brooms, which the House-elves unloaded into the broom cupboard.
• Cedric asked Pomona to give everyone the next day off, and she agreed they should not send injured people into the Forbidden Forest.
• Neville arrived with Newt and Tina, carrying an Occamy in a teapot, and Pomona asked to join them at the Ministry party.
• Pomona sent Cedric to change into formal clothes and encouraged him to ask Tina whether she liked his Thunderbird.
• Georgiana pondered the Vanishing Cabinet, her memories of Hogwarts and Snape, and the danger of her bond with Neville, regretting that she had opened a door on a magical night.

Pomona explained her plant-based magic to Flitwick while seeking his help with the Triwizard maze, and he asked her to attend a party with him. Georgiana investigated the rhythms of magic and ancient stones, then heard Dumbledore suggest she had understood their significance.

• Pomona asked Flitwick to train the maze interns, and he urged her to make the maze safer before agreeing to help if he had time.
• Pomona explained that her earth magic used plant extracts in soil to cultivate magical plants and make the maze hedges move.
• Flitwick asked what Pomona planned to wear to their party so he could match her outfit, then discussed unusual stones near the lake where Harry Potter had cast his Patronus.
• Georgiana recalled her failed effort to awaken a seed with Black Vine Water and Firewhisky, which had nevertheless sharpened her senses.
• Georgiana connected the rhythms of Harry Potter's Patronus, Hogwarts's ancient stones, the Pensieve, and a nearby quarry before Dumbledore told her she should understand by then.
• Georgiana asked Dumbledore whether someone who drank a potion brewed with the Philosopher's Stone still needed sleep, and he said they did.

Flitwick and Pomona considered how Harry’s changing self-identification had enabled his powerful Patronus, while Pomona reflected on Harry’s isolation, the people around him, and the limits of changing the past. She ended the chapter alone in a bath, contemplating Lily, James, and Severus as the rose in the water bled red and turned white.

• Flitwick explained Harry’s powerful Patronus as the result of a growing sense of self-identification, and Pomona struggled to understand his reasoning.
• Pomona thought about Harry returning to the Dursleys and compared his hidden life to Justin Finch-Fletchley’s experience hiding from the Basilisk.
• Pomona reflected that the Mirror World could not change reality and that power, lies, and magic could be used to save people.
• Pomona considered Severus’s choice of Lily and James’s willingness to change for her, then shaped the blood-stained rose petals into a lotus and sank beneath the bathwater.

Pomona relived Snape’s death in a vision and confronted Albus about guilt, forgiveness, and her choice to withdraw from others. She surfaced from the vision deciding she no longer wanted to hide.

• Pomona revisited the wall where the bloody writing had appeared and followed a voice speaking Parseltongue into a vision of the Hogwarts boathouse.
• Pomona watched Voldemort accuse Snape of being the Elder Wand’s master, then order Nagini to kill him.
• Albus told Pomona she could save Snape by finding the antidote, and challenged her about the choices she had made and regretted.
• Pomona defended Snape’s choices and challenged Albus over his own past, including what happened to Ariana and his decision to leave her alone after Cedric was taken.
• Pomona told Albus she no longer wanted to hide, then surfaced in the bathtub as the water cleared.