Vol. 3The Vault 901 Plot

Roy uncovered Voldemort’s Horcrux and pursued the attackers who targeted Mia, tracing their scheme to Gringotts Vault 901. After Tiago infiltrated Mia’s life and Fudge’s collusion came to light, Roy and Aisling prepared a Christmas operation against Gringotts.

  • Roy fought Tiago after a Floo Network ambush, and Tiago escaped when his chest seal acted up.
  • Tiago’s accomplices poisoned Roy and stole his luggage, but Aisling later secured the magical diamond in Grindelwald’s vault as Roy returned to Hogwarts.
  • Roy found Tom Marvolo Riddle’s trophy and recognized it as a Horcrux before Dumbledore destroyed it.
  • Dumbledore tasked Roy with searching for Voldemort’s remaining Horcruxes and learning love magic to protect Mia.
  • Roy baited Tiago at Gringotts, and Dumbledore later told him the attackers had been captured or killed while Tiago turned to Mia for information.
  • Roy joined Hufflepuff’s Quidditch team, tested the risks of his Phasing Charm, and learned that the Room of Requirement held enchanted objects.
  • Roy traced the attackers’ lead to Gringotts Vault 901 while Tiago drank Mia’s blood and took her likeness.
  • Roy and Aisling overheard Fudge and Tiago’s collusion and prepared a Christmas operation against Gringotts.
Chapters 201–300 Read from Ch. 201

Arc 9The Stolen Diamond

Roy and Mia were threatened by Tiago’s group, prompting Dumbledore to protect them while Roy developed the Phasing Charm. Tiago stole Roy’s luggage and escaped with the magical diamond, but Aisling secured the Heart of Africa in Grindelwald’s vault as Roy arrived at Hogwarts for the new school year.

  • Roy fought Tiago after the Floo Network sent him into an ambush, and Tiago fled when his chest seal began acting up.
  • Roy found a threatening letter at home and tried to take Mia somewhere safe, but Dumbledore stopped him and arranged protection for them.
  • Roy studied House-elf travel and spatial magic, then discovered the Phasing Charm when Mia’s Potions mixed into a corrosive brew.
  • Dumbledore protected Roy’s cabin with the Fidelius Charm and arranged for Newt to care for Mia, while warning Roy that the attackers’ magic resembled styles from Egypt and the Middle East.
  • Tiago’s accomplices caused chaos at King’s Cross, poisoned Roy, and stole his luggage, including the suitcase holding the magical diamond, but Roy caught up with Tiago before Dia stunned him and helped Tiago escape.
  • Aisling found Roy unconscious, and he later agreed to let her store the diamond in a protected vault beneath Grindelwald’s castle.
  • Roy boarded the Hogwarts Express with Cedric, Fred, and George, then rode to Hogwarts as the new school year began.
Chapters 201–225 Summaries Read

Arc 10The Trophy and the Horcrux

Roy received the Order of Merlin, declared war on the attackers, and discovered Voldemort’s magic in a school trophy. After the Trophy was destroyed, Dumbledore tasked Roy with searching for Voldemort’s remaining safeguards and learning love magic to protect Mia, while the students began the Dueling Club and Roy’s rivalry with Aisling continued.

  • Roy arrived at his Order of Merlin ceremony covered in mud, then received a First Class honor and publicly accused Fly Head and his followers of attacking him.
  • Roy, Aisling, and Dumbledore discussed how to protect Mia and draw out the attackers, while Professor Dia Jobana asked Roy to help investigate the curse on the Defense Against the Dark Arts position.
  • Roy infiltrated the Slytherin Common Room in disguise to search for Voldemort’s belongings, but Aisling caught him and Dumbledore sentenced him to detention.
  • While cleaning trophies in detention, Roy found Tom Marvolo Riddle’s award and recognized the name as Voldemort’s.
  • Roy showed the Trophy to Dia, whose examination unleashed purple magic that possessed her, but Roy and the professors contained the danger and Dumbledore destroyed the Trophy.
  • Roy told Dumbledore that the Trophy had been a Horcrux, and Dumbledore concluded Voldemort had made multiple Horcruxes and tasked Roy with searching for them.
  • Dumbledore gave Roy an ancient book to learn love magic for Mia’s necklace, while Roy’s detention was replaced with supervised Potions brewing and Dia recovered.
  • Cedric helped Hufflepuff lead the Dueling Club standings, and Aisling joined Roy for Potions study before kicking him through Snape’s office door.
Chapters 226–250 Summaries Read

Arc 11The Vault and the New Term

Roy baited Tiago into revealing himself at Gringotts, but the investigation ended with the attackers captured or dead while Tiago turned to Mia for information. Back at Hogwarts, Roy joined Hufflepuff’s Quidditch team, explored the risks of his Phasing Charm, and learned that the Room of Requirement held many enchanted objects.

  • Roy and Aisling prepared Potions ingredients for Snape, while Roy later gave Aisling his Hormone Gun as a belated birthday gift.
  • Roy staged a visit to Gringotts with Lupin, where Tiago attacked Lupin in disguise and escaped after Roy blasted him away.
  • Roy found the Marauder's Map, and Dumbledore later confronted Tiago, who became Gringotts Britain's new governor and offered clues about the attackers.
  • Dumbledore told Roy that the attackers had been captured or killed, while Tiago resolved to obtain information about Roy by targeting Mia Saru.
  • Mia attacked Hermione in an alley after mistaking her for Harry's bully, but Mia's broken wand discharged wildly and knocked Mia and Harry unconscious.
  • Roy joined Hufflepuff's Quidditch team as its tryouts faltered, while his Potion progress outpaced Aisling's and Snape moved their sessions to Friday nights.
  • Roy demonstrated the Phasing Charm to Dumbledore, who collapsed after trying it, and Roy took back his confiscated stealth equipment.
  • Roy learned from Poppy that the house-elves had found enchanted objects in the Room of Requirement, and he hurried to find the room on the Seventh Floor.
Chapters 251–275 Summaries Read

Arc 12The Vault 901 Plot

Roy investigated the attack on Mia and traced the gold key to Gringotts Vault 901, while Tiago secretly transformed into Mia. After Dumbledore retained custody of Mia but agreed to isolate her, Roy and Aisling uncovered Tiago and Fudge’s collusion and prepared a Christmas operation against Gringotts.

  • Roy found Sebastian Sallow’s memory fragment and a powerful unfinished robe, then learned from Dumbledore that Voldemort’s old textbooks had been stored in the Room of Requirement.
  • Mia fought two masked attackers at Godric’s Hollow, unleashed her Obscurus, drained their life forces, and was restrained after clashing with arriving Aurors.
  • Roy questioned Harry and investigated Mia’s movements, then used an ancient gold coin shaped as a key to trace the attackers’ lead to Gringotts and Vault 901.
  • Aisling identified Vault 901 and proposed using Dumbledore’s influence against Gringotts, but Roy insisted on entering the vault himself.
  • Tiago drank Mia’s blood and transformed into her likeness, while Roy continued his Hogwarts studies and helped Hufflepuff defeat Ravenclaw.
  • At Mia’s custody hearing, Dumbledore agreed to resign as a Ministry adviser, while Fudge opposed his guardianship and Aisling criticized Dumbledore’s compromise.
  • Roy and Aisling overheard Fudge and Tiago discussing their cooperation, then began preparing to bring Fudge down and target Gringotts.
  • Roy showed Aisling his Silent Infiltration Gear and phasing ability, and they set Christmas break for their planned Gringotts operation.
Chapters 276–300 Summaries Read
Volume 3 of 4