Recaps

Su Er treated Scabbers, explored the Forbidden Forest, and began Hermione’s Animagus preparations while investigating the Acromantulas and a set of matching badger figurines. The stretch ended after Hogsmeade and a cheerful Halloween Feast, with Su Er still searching for the third figurine.

• Su Er removed a parasite from Scabbers and helped Ron care for the recovering rat, while Scabbers later escaped and behaved strangely.
• Su Er encountered a Chimaera in the Forbidden Forest and was saved by a Bowtruckle, then followed its marker to the centaur camp and met Lisi.
• Lisi showed Su Er a bronze badger figurine matching one he already owned and asked him to bring her the third of three matching objects.
• Su Er and Hermione buried the ingredients for Hermione’s Animagus potion in the Forbidden Forest, then returned to Hogwarts in the rain.
• Dumbledore told Su Er that the Ministry had summoned Hagrid over the Hippogriff incident and cautioned him to consider the consequences of changing fate.
• Su Er learned from Lupin about his parents’ achievements and their time at Hogwarts, then found Amelia’s letter suggesting another badger ornament might be in the castle.
• Su Er went to Hogsmeade with Hermione, where she discovered that his Remembrall held a recording of Percy and Penelope together.
• Su Er cleaned Filch’s prank-stained Entrance Hall floor and joined his dormmates at the Halloween Feast, which ended with a ghost performance.

Su Er uncovered Sirius Black’s hiding place and worked with Dumbledore to prove that Scabbers was Peter Pettigrew. Pettigrew admitted betraying Harry’s parents, and Black surrendered to the Ministry party after the planned reveal.

• Peeves reported Black’s attack on the Fat Lady, and Dumbledore kept the students overnight in the Great Hall while Su Er reconciled with Hermione.
• Su Er recorded Black leaving the Room of Requirement as a black dog, borrowed the Marauder’s Map from Fred and George, and used it to track Black and Pettigrew.
• After Dementors attacked during the Quidditch match, Su Er drove them back with his Patronus and later found Black in the Shrieking Shack, where he restrained and confronted him.
• Su Er told Dumbledore that Scabbers was likely Pettigrew, and they planned a performance to expose him, but Su Er’s wandless Patronus practice drained his magic and left him near death.
• Dumbledore saved Su Er with the Philosopher’s Stone, and Su Er later discovered that his Patronus in the white space took the form of Ariana.
• Su Er brought Hermione to Black, arranged for Black to meet Dumbledore, and recruited Lupin to help retrieve Scabbers from Gryffindor Tower.
• Lupin confirmed that Scabbers was Pettigrew, and Pettigrew admitted that he had betrayed James and Lily because he feared Voldemort.
• Dumbledore prevented Black from attacking Pettigrew and rendered Pettigrew unconscious, then Su Er helped stage Black’s surrender before Fudge and the Ministry party.

Su Er helped expose Peter Pettigrew, clearing Sirius Black’s name and earning the Order of Merlin. After the Ministry honored him, Su Er and his friends survived an Acromantula hunt, while Harry began learning how his parents’ friends had betrayed them.

• Dumbledore and Amelia Bones exposed Scabbers as Peter Pettigrew, whose confession cleared Sirius Black and revealed the Ministry’s wrongful conviction.
• Su Er explained how he had identified Pettigrew, then learned from Dumbledore about Hufflepuff’s hidden legacy and received advice from Flitwick about controlling his excess magic.
• Snape trained Su Er in a fierce duel, while Fred and George mistook the lesson for an attack and brought Professor Sprout to intervene.
• Fudge declared Sirius Black innocent, sentenced Pettigrew to life in Azkaban, and presented Su Er with the Order of Merlin, Third Class.
• Su Er, Hermione, Fred, and George entered the Forbidden Forest to hunt Acromantulas, but the spiders surrounded them after they captured venom and severed legs.
• Su Er and his friends broke through the swarm by coordinating spells, and the centaurs rescued them after Su Er killed the Acromantula commander with Sectumsempra.
• Hogwarts students celebrated Su Er’s award, but he told Hagrid, Harry, and Ron that Pettigrew had willingly served Voldemort and hidden as Scabbers.
• Hagrid told Harry that Sirius, Remus, and Pettigrew had been James and Lily’s friends, then began explaining Dumbledore’s plan to protect them with the Fidelius Charm.

Su Er helped Harry reunite with Sirius, and the group spent Christmas together as Su Er and Hermione became a couple. After the break, Sirius returned to Hogwarts as a Defence Against Dark Magic teaching assistant and began practical lessons in the Shield Charm.

• Hagrid told Harry that Sirius Black was his godfather, and Su Er explained that Sirius would come to Hogwarts as a teaching assistant.
• Su Er gave Harry the Marauder's Map, then sold Acromantula venom to Aberforth and told him he had met Ariana in Limbo.
• Su Er and Hermione brought Harry to the Shrieking Shack, where Harry reunited with Sirius and learned how Sirius had escaped Azkaban.
• Harry spent Christmas with Sirius, while Su Er and Hermione celebrated with their families and exchanged gifts.
• Su Er arranged fireworks and asked Hermione to be his girlfriend, and she accepted before they joined Harry at the Black family home.
• At Hogwarts, Snape and Sirius became the subject of rumors after a crash in the Staffroom, while Su Er continued training with Snape.
• Sirius and Lupin began teaching all four houses practical defence, and Sirius demonstrated the Shield Charm against Lupin's spells.
• Slytherin beat Ravenclaw in Quidditch, while Harry trained for Gryffindor's match and Su Er offered to help Hermione with her homework.