Chapter Summaries

Ron proposed a werewolf business based on the Ministry supporting the sale of bodily fluids and the teaching of Fenrir Greyback, but Lupin warned that it could exploit Muggle werewolves and was driven by wizards’ desire for magical descendants. Hagrid revealed that Argus Filch had taken the surname Rowle, giving Harry a possible clue to the Rowle family’s connection to Azkaban.

• Ron described how his family and allies could monopolize a werewolf business, while Lupin warned that Muggle werewolves could be exploited and the plan could not become a safe industry.
• Lupin explained that Squib werewolves could learn Fenrir Greyback and simple spells, making lycanthropy a route to magic for wizarding families’ descendants.
• Hagrid recalled that Filch had recently said he had a surname and should be called Argus Filch Rowle.
• Harry recognized the Rowles’ history of defending Azkaban and wondered whether Filch knew its hidden secrets.

Harry, Ron, and Ginny connected the Rowles’ interest in keeping Azkaban to the prison’s changes and planned ways to learn the family’s secret. Harry also realized that mastering the Fenrir Greyback form had greatly improved Lupin’s physical strength, suggesting werewolves could become powerful wizard allies.

• Lupin speculated that Rowle’s willingness to accept a Squib was connected to changes in Azkaban, and Hagrid secretly relayed the idea to Dumbledore.
• Harry took Ron and Ginny away from Hagrid’s hut, worried that Hagrid might overhear their conversation.
• Harry proposed getting information about the Rowles through Filch’s cat-loving student friend Steven or through Draco.
• Harry observed that Lupin had become healthier and more muscular, and inferred that he retained some wolf strength in human form after mastering the Fenrir Greyback form.
• Ron concluded that the Wolfsbane Potion program could recruit indebted werewolves as powerful allies, and recognized that his business idea depended on more than his own efforts.

Harry learned that Draco was using the two-day engagement banquet to investigate Rowle and the return of Squibs to wizarding society, then met Filch alone to ask about becoming a wizard through Fenrir Greyback. Filch admitted he was a Squib who expected to become a wizard as Rowle, while Harry’s purpose remained unclear.

• Harry received Draco’s message that he would investigate Rowle’s secret among the pure-blood guests at the engagement banquet and return Monday morning.
• Harry and Ron agreed to keep searching for “Cat Guy” Steven, while Harry reflected on his own planned engagement to Ginny.
• Harry entered Filch’s office and examined the punishment records, including a drawer labeled James Potter, before Filch arrived.
• Filch accused Harry of coming on behalf of Fred and George, but Harry said he was not there about the twins.
• Harry told Filch that he knew he could become a wizard through Fenrir Greyback, and Filch admitted he was a Squib who expected to become a wizard as Rowle.
• Filch asked whether Harry wanted to learn the same way through his connections.

Harry questioned Filch about the Rowles’ connection to Azkaban, and Draco revealed the family’s dark magic, Tartarus, and its link to the prison. The source of Tartarus had recently disappeared, leaving the Rowles facing an unexplained threat.

• Filch told Harry that the Rowles were skilled in a unique dark magic and that Azkaban’s continued role as a prison mattered even if it held no prisoners.
• Filch said he expected to become a wizard after taking Wolfsbane Potion and transforming under Ministry guidance at the next full moon.
• Draco arrived to meet Harry and Ron after news of his engagement spread, then said he had discovered the Rowles’ secret.
• Draco explained that his grandfather had been cursed by a Rowle and later died of Dragon Pox despite Voldemort’s attempts to save him.
• Draco revealed that Tartarus was an amplifying magic created by Damocles Rowle, using Azkaban’s concept and the resentment of the unjustly dead.
• Draco said the Rowles had recently sensed that Tartarus’s source had disappeared, even though Dementors were believed immortal and Azkaban remained a wizarding prison.

Harry, Draco, and Ron concluded that Voldemort might be turning Azkaban into part of himself as he prepared to revive. Draco then revealed that Lupin had refused to see Tonks, leaving Harry uneasy about what might happen between them.

• Harry, Ron, and Draco discussed Azkaban’s disappearance and speculated that Voldemort had absorbed the island and might be reviving.
• Harry explained that Voldemort could not truly be killed until he revived, and Draco agreed that their enemies were deliberately drawing him toward that ritual.
• Draco told Harry and Ron that Tonks had sought his help meeting Lupin after Lupin refused to see her.
• Harry suggested Lupin might simply be busy, but his instincts told him that something was wrong.

Harry, Ron, and Draco discussed Lupin's avoidance and Tonks's effort to reach him while pruning Abyssinian Shrivelfigs in Herbology. Ron learned the plants could be used in valuable potions and regretted not paying attention in class.

• Lupin avoided Harry and the others, while Sirius supported Lupin's decision not to make promises during the coming crisis.
• Ginny and Lavender criticized Harry and Ron over Lupin's treatment of Tonks, and Ron privately defended Lupin's choice.
• Harry, Ron, and Draco wondered whether Tonks had stopped writing because she was seeking to join the Order of the Phoenix through Moody.
• Ron tore off an Abyssinian Shrivelfig and tried to eat it, so Harry and Draco explained its taste and medicinal uses.
• Ron realized Shrivelfigs and Flobberworm Mucus were ingredients in potions with valuable effects, and regretted not recognizing their worth.

Harry explained to Ron why selling Shrinking Solution or Baruffio’s Brain Elixir would be impractical, while Neville’s surprising physical transformation drew the group’s attention. Anthony and Michael revealed that Neville had been training with an iron sword outside the castle.

• Harry listed the risks and limitations of Shrinking Solution and warned Ron that it was a poor product to sell.
• Harry explained that Baruffio’s Brain Elixir was difficult and dangerous to brew, and that its ingredients made it unprofitable.
• Ron lamented that it was hard to get rich as his Smoke Bomb market began to saturate.
• Harry, Ron, and Draco noticed Neville carrying a barrel of Abyssinian Shrivelfigs with ease and saw that he had lost weight.
• Anthony and Michael said Neville had been training with an iron sword outside the castle, often sitting in a strange posture with the sword across his lap.
• Anthony teased Ron about his weight and compared him unfavorably with the fitter Neville and Harry.

Ryan and Kate discussed Mahoutokoro and the recent changes in their lives while Ryan kept the gift Hermione had received through Neville’s changes secret. Ryan also described how he was manipulating the Death Eaters’ survival show, which was about to test whether Mulciber would read a Muggle survival book.

• Kate explained that her white Mahoutokoro robe marked her as a criminal, then teased Ryan into playing a prosecutor-and-criminal game.
• Ryan learned that Penelope was helping her newly magical aunt study after the discovery that a Squib could become a wizard through the Fenrir Greyback transformation.
• Ryan and Kate discussed Death Eaters’ Wilderness Survival, where Bella had snapped Voldemort’s last wand while fishing.
• Ryan asked Kate to predict whether young Mulciber would burn or read a Muggle survival book, but Kate recognized that Ryan would manipulate either outcome.
• Kate recalled that Ryan had previously engineered Bella taking the wand by arranging for her period to come early.

Neville practiced the sword magic Ryan had given him, unaware that it was increasing his resistance to magic. Harry discovered Neville training at night, and they recognized that Ryan had given them both unusual magic.

• Neville trained by visualizing a Cloud Script sword while Billywigs circled him, and he noticed that their stings and most spells no longer affected him.
• Harry approached Neville and recognized the white-thread Magic Array that helped conceal him.
• Neville explained that he avoided nights when Astronomy Class was held and asked whether Terry had permission to use a telescope in the Astronomy Tower.
• Harry suspected Ryan had given Neville his magic, and Neville realized Harry had received something similar.
• Harry summoned a phoenix-shaped magic bird while Neville conjured his strange sword, and they smiled at each other.

Neville told Harry that Lupin entered the Whomping Willow at night, and Harry organized a group to follow him through its hidden tunnel. The four pressed onward through the cramped passage, where Harry recognized wolf paw prints, before he showed them a bubbling green potion.

• Neville told Harry that Lupin disappeared into the Whomping Willow at night.
• Harry watched the tree during Astronomy Class and spotted a fleeting figure near it.
• Harry, Ron, Ginny, and Draco went to the Whomping Willow after class to investigate.
• Harry dodged the tree's branches and pressed the knot to stop it moving, then led the others into the tunnel.
• After a long, cramped crawl, Harry showed the group a bubbling green potion, which Ron identified as Shrinking Solution.

Harry, Ron, Draco, and Ginny reached the Shrieking Shack and searched the abandoned-looking house for Lupin. They found him in a room upstairs, where he transformed from a wolf into a man and greeted Harry.

• Ginny asked Ron how he had become so skilled at Potion-Making, and Ron avoided answering.
• Harry shrank Ginny, Draco, and Ron, protected them with a spell, and carried them through the tunnel to the Shrieking Shack.
• The group returned to their normal size and noticed that the Shack's dust and damage had been magically preserved to make it look uninhabited.
• Harry and the others climbed upstairs and spotted a wolf-shaped figure behind the curtains of a bed.
• Harry opened the door and released the spell concealing their voices, and Lupin changed from a wolf into a man.
• Lupin told Harry that he had expected the day they found him to come much later.

Harry, Ginny, Ron, and Draco confronted Lupin about avoiding Tonks, prompting him to admit his fear for her safety and reconsider his decision. They then discussed Voldemort’s expected return after the Triwizard Tournament and speculated about which schools might take part.

• Harry, Ginny, and Ron challenged Lupin for keeping his distance from Tonks, and Lupin explained that he feared she would be targeted because of his past and her Black family ties.
• Ron revealed that Tonks had applied to join the Order of the Phoenix, and Lupin rushed to confront Moody before realizing he had no right to overrule Tonks’s choice.
• Lupin said Dumbledore expected Voldemort to return shortly after the Triwizard Tournament, a little over a year away, and Ron decided Fred and George’s shop plans could proceed.
• Harry suspected the tournament and its visiting schools might be connected to resisting Voldemort’s return, while Lupin said Dumbledore and Grindelwald were considering making it a four-school tournament.
• Harry and Ron identified the two secret schools they knew about as Moon City’s school and a school beneath Atlantis, then considered which known school might join the tournament.
• Draco suggested Castelobruxo was the likeliest candidate, and Ron revealed Bill had once exchanged letters with a student there who sent him a cursed hat after Bill declined an exchange visit.

Harry, Ron, Ginny, and Draco discussed Castelobruxo’s exchange program and the magical schools competing in the next Triwizard Tournament. Lupin left them eager to learn what challenges the school-wide competition would involve.

• Ginny, Harry, and Draco doubted Ron’s story about Castelobruxo until Lupin confirmed the school had an exchange program for outstanding sixth-year students.
• Lupin explained that students needed their Ordinary Wizarding Level and Nastily Exhausting Wizarding Tests certificates for work, which Ron had wondered about.
• Harry asked whether Castelobruxo had Quidditch, and Ron explained that Peru had South America’s only Quidditch club team, the Tarapoto Tree-Skimmers.
• Harry teased Ron about Libatius Borage, while Lupin discouraged the group from reading Have Yourself a Bottle Festival! after Draco admitted he had seen it in his parents’ bedroom.
• Lupin redirected the conversation to the next Triwizard Tournament, explaining that every teacher and student would compete, and described the strengths of Beauxbatons, Durmstrang, and Castelobruxo.

Harry, Ron, Ginny, and Draco returned to Hogwarts with Lupin, while Ryan and Luna discussed Voldemort’s predicted return and the coming exams. The chapter ended with Filch catching Harry, Ron, and Ginny on the fourth floor.

• Lupin returned Harry, Ron, Draco, and Ryan to Hogwarts in his wolf form after shrinking them with Shrinking Solution.
• Ryan explained to Luna why Harry and the others had not recognized Grindelwald and predicted that Voldemort would return in 364 days.
• Ryan assured Luna that Voldemort would return during summer vacation and that the exams would not be canceled.
• Harry, Ron, and Ginny sneaked toward the sixth floor after Lupin confirmed Filch was occupied in his office.
• Harry heard a cat meowing, and the three ran into the room on the fourth floor, where Filch and Mrs. Norris caught them.

Harry, Hermione, Ron, and Draco discussed which electives to take for their third year after Ravenclaw lost points for their nighttime escapade. They settled on their choices, leaving Ron relieved that Lavender would not choose Arithmancy and he would not have to drop Ancient Runes.

• Ravenclaw students discovered that Harry, his girlfriend, and Ron had cost their House many sapphires, but most students accepted their actions as part of a wider wave of nighttime rule-breaking.
• The four Houses’ points stood at Gryffindor 17, Hufflepuff 35, Slytherin 49, and Ravenclaw 58 as second-year students considered their third-year courses.
• Ryan advised Hermione to skip Divination, Arithmancy, and Muggle Studies, and she chose her courses accordingly.
• Harry decided to drop Arithmancy and Muggle Studies, while Ron and Draco decided to follow Harry’s choices.
• Seamus and Dean told Ron that Lavender favored Divination over Arithmancy, so Ron kept Ancient Runes on his course list.

Harry and his classmates completed their second-year examinations, from practical tests in Charms, Transfiguration, Potions, and Herbology to Defense Against the Dark Arts and History of Magic. With exams over, Harry looked ahead to Saturday’s Quidditch final, where he would face Dudley again.

• Harry completed the Charms test by using the General Counter-Spell to silence noisy candy, then took McGonagall’s practical Transfiguration examination.
• Ron worried that he had added too much bat spleen to his Swelling Solution, and Harry explained the potion’s effects.
• Harry and the other students repotted Venomous Tentacula for Herbology, leaving most of them scratched and numb from the plant’s venom.
• Riddle tested the students’ Defense Against the Dark Arts skills by having them defend against toy guns in an enlarged room; Harry was hit only once.
• Harry finished the History of Magic paper, and the examinations ended with the Quidditch final against Dudley still to come.

Harry and Dudley dominated the Quidditch final, with Harry catching the Golden Snitch to secure Ravenclaw’s 150–0 victory. As Harry celebrated with his friends and received the trophy from Dumbledore, Ryan noticed Slytherins preparing to use werewolf transformations to improve their Quidditch teams.

• Harry evaded the players and Bludgers targeting him while Dudley blocked Ravenclaw’s barrage of shots.
• Harry caught the Golden Snitch, giving Ravenclaw a 150–0 win over Hufflepuff.
• Ryan watched the crowd celebrate and noticed several Slytherins had acquired the scent of werewolves, apparently to imitate Harry’s physical advantages.
• Ginny embraced Harry, his friends and Hagrid celebrated with him, and Dumbledore presented him with the Quidditch trophy.

Harry received Sirius's invitation to an engagement celebration for him and Ginny on June 21, and the news sparked an argument with Ron. The chapter ended with Harry and Ginny embracing while Ron continued to challenge their relationship.

• Ron bragged about advancing his relationship with Lavender, and Ginny criticized him for ignoring Lavender's attempts to push him away.
• Hedwig delivered Sirius's letter, which revealed that Remus and Tonks were together again and invited Harry and Ginny to celebrate their engagement on June 21.
• Ginny excitedly embraced Harry over the engagement news, while Ron objected and argued that they were too young.
• Draco sided with the engagement after noting that their parents and Sirius had agreed to it.
• Ron claimed Harry had feelings for Cho Chang and the Lady Grey, but Harry and Ginny denied his accusations and hugged.

Harry decided to return to the Dursley home briefly despite hating it, because he still considered it the place where he had grown up and wanted to acknowledge that it had taken him in. His friends doubted his judgment and planned to get food and sleep before he went to stay with Sirius.

• Ron stopped himself from objecting to Harry and Ginny’s relationship and asked whether Harry planned to return to the Dursley home.
• Ginny suspected Ron was plotting to have Harry’s aunt interfere, but Harry explained that Ron often gave up and started thinking strange thoughts.
• Harry told Draco, Ginny, and Ron that he would stay at the Dursley home for two or three days before going to Sirius’s place.
• Harry regretted that Dudley had changed and now fussed over him instead of acting as he once had.
• Ginny agreed with Ron that they should eat in the Great Hall and return to the dormitory so Harry could sleep.

At the year-end feast, Harry struggled with his newfound fame as Dumbledore announced Ravenclaw’s House Cup victory and revealed that the coming Triwizard Tournament would involve four schools and all students’ performances. The students began their summer holiday knowing they could practice magic for the competition, though the Ministry would monitor their use of it.

• Ron, Ginny, Draco, and the others accepted Harry’s explanation but avoided discussing his wish to return to the Dursleys, and they spent their remaining summer term visiting Hagrid.
• Harry attended the year-end feast with Ron, Ginny, Ryan, Hermione, and Luna while other students’ attention and the attention of witches pursuing him made him uncomfortable.
• Dumbledore announced that Ravenclaw won the House Cup with 108 points, followed by Slytherin with 49, Hufflepuff with 35, and Gryffindor with 17.
• Dumbledore revealed that the next Triwizard Tournament would include Hogwarts, Beauxbatons, Durmstrang, and Castelobruxo, and that every student’s performance would count alongside the Champions’ contests.
• Dumbledore told the students they could use magic during the summer to prepare for the Tournament, but warned that the Ministry would monitor them.