Recaps

Vaughn pursued his reforms at Hogwarts while investigating the attack on Harry and the foreign wizards behind it. After Fruit Tea uncovered Voldemort’s alliance with DeSantis, Vaughn summoned Dumbledore back, and Harry went to meet Vaughn and Snape.

• Fudge traveled to China to pursue the Potions Exchange program, while Vaughn and Dumbledore discussed suspicions that DeSantis and Wilkinson were connected to missing legendary wizards.
• Vaughn and Hagrid rescued Harry and Ron from the Acromantulas, and Aragog told Vaughn that American-accented wizards had arranged for Harry to be attacked.
• Vaughn recruited Snape to support the Dueling Club and used an experiment on Araclaid to study the spider’s body and life.
• Harry and his friends secretly watched the Board of Governors vote on restoring the Dueling Club, which ended in a 4:4:4 tie.
• Draco asked Harry to investigate Lucius, and Harry followed Lucius and Snape to an underwater corridor, where DeSantis revealed himself as a North American legendary wizard.
• Fruit Tea overheard DeSantis tell Snape and Lucius that Voldemort wanted to cooperate with him for resurrection, and Snape accepted DeSantis’s offer to serve Voldemort.
• Vaughn recovered Fruit Tea’s memories, learned that DeSantis was working with Voldemort, and decided to summon Dumbledore back.
• Snape summoned Harry to his office, where Vaughn greeted him and invited him to warm up over tea.

Vaughn investigated Voldemort’s cave and recovered Regulus’s locket while building alliances around his potion exchange. At Hogwarts, his research with Hermione revealed a way to deliver magical compounds into cells, and Snape recognized that Vaughn intended to bridge the divide between Muggles and wizards.

• Vaughn entered Voldemort’s sea cave with Kreacher, studied its protections, and helped Kreacher recover Regulus’s story, prompting Sirius to reconsider his brother’s death.
• Vaughn brought Crouch and other researchers to the cave to investigate its magic, while Lupin joined their work and later reunited with Tonks during a Ministry assignment.
• Vaughn arranged a Potions exchange with the Central Academy of Qi Refining and other schools, while Dumbledore witnessed the Chinese cultivators awaken Laojun Mountain’s dragon vein.
• Vaughn invited Hermione to assist with his Universal Functional Group research, where she observed magical channels and proteins inside an Acromantula.
• Vaughn and Hermione demonstrated how Protein Robots could carry a fluorescent potion into an Acromantula’s cells, and Snape warned that the invention might let Muggles use magical potions.
• Vaughn admitted that Dumbledore understood his intentions, then told Snape that he judged people and magical creatures by their usefulness to his plans.

Vaughn’s research and ideas stirred political tension as he met Li Nanyu and learned of the Creator, the golden soul, and China’s concerns about the future. Meanwhile, Hogwarts prepared to host international delegations, and Harry and his friends trained for the visitors’ arrival.

• Vaughn argued to Snape that magic’s development would transform wizarding society, then worked with Hermione on ways to stop Protein Robots from aggregating.
• The Daily Prophet attacked Vaughn’s research, while Harry began studying it and Dumbledore announced an international magical academy exchange at Hogwarts.
• Vaughn agreed to meet China’s delegation, and Li Nanyu tested him with a vast fog covering London before explaining China’s history and its theories about the Creator and a golden soul.
• Vaughn concluded that China considered him a variable who might not belong to this world, then recorded Li Nanyu’s warnings about the New Gospel Society and planned experiments into fate and time.
• Hermione launched S.P.E.W., but Vaughn showed her evidence about house-elf domestication and urged her to study how it might be reversed.
• Hogwarts began etiquette training for the visiting delegations, while McConnell showed Harry and his friends the renovated West Tower and the schools began arriving in Britain.
• Harry and Ron performed poorly in their assessments, so they began intensive training as the delegations’ arrival neared.

As Hogwarts welcomed the visiting delegations, Vaughn and Dumbledore tracked a pure-blood and North American plot to resurrect Voldemort while Harry, Ron, and Hermione stumbled into its operation. The Potions Exchange brought new experiments and alliances, and Harry and Ron’s attempt to evade Vaughn ended in a disastrous selection exam.

• Dumbledore welcomed the visiting delegations, including Li Nanyu’s Central Academy of Qi Refining, while a Beauxbatons witch insulted Harry and Cheng Quandao provoked Ron.
• Vaughn confronted Dumbledore over the Ireland research and the surveillance around Mundungus, as pure-blood families debated Vaughn’s research and Rosier revealed that North American visitors were helping Voldemort obtain a resurrection-related item.
• Vaughn restored Peter Pettigrew’s memories and extracted a strand of silvery-white mist, while Ron woke to find Scabbers missing.
• Harry, Ron, and Hermione followed Lucius Malfoy, Snape, and Jacob Rosier into the Forbidden Forest, where they met North American wizards and fought over a plan to resurrect Voldemort.
• Hermione blinded Jason Hastings with Lumocecuren, and Snape concealed his injury with a false story, and Harry later decided to report what the trio had heard to Dumbledore.
• Harry and Ron enlisted Hagrid to draw Vaughn and Dumbledore away from the Potions Exchange reception by staging a minor Abraxan injury, while Umbridge tried to pressure them into helping Fudge.
• Vaughn began a clinical trial of Wolfsbane Potion version 2.1 with Remus Lupin, while Li Nanyu arranged for Cheng Quandao to learn from Vaughn and Hermione considered serving as a liaison to the Central Refining Academy.
• Harry and Ron deliberately botched Snape’s selection exam to avoid Vaughn and Dumbledore, but transformed themselves into girls, while Hermione failed on purpose and left the exam.