Recaps

Regulus trained his friends and altered Baruk with Bowtruckle magic, while tensions grew between the student groups and Lily confronted James over his attack on Severus. The arc left Baruk trying to win the trees’ acceptance and Lily beginning to learn the Constant Shield Charm.

• Professor Flitwick taught the Freezing Charm, and Regulus earned Slytherin five points with a perfect demonstration.
• Alex told Regulus that the Slytherins and Gryffindors had fought, and Regulus joined their Forbidden Forest detention with Hagrid.
• Regulus taught Avery, Alex, Hermes, Lina, and Samuel to sense magic as they gathered ingredients in the forest.
• Regulus and Hermes brought Bowtruckles to Aragog’s nest, where Regulus grafted their magic onto Baruk so it could communicate with trees.
• Baruk learned that the trees disliked spiders, and Regulus encouraged it to stay in the forest and earn their acceptance.
• Snape attended Wilkes’s gathering of pure-blood students, then clashed with James until Lily intervened and fought James with a suit of armor and wandless Magic Manipulation.
• Regulus trained Hermes in the Room of Requirement while Alex coached Lina and Samuel, then Lily recounted her fight with James and began practicing the Constant Shield Charm with Regulus.

Regulus prepared a false identity, tested his theories about Transfiguration and Hogwarts, then met Dumbledore to share intelligence on Voldemort and recruit help. He left with Dumbledore intending to investigate the werewolves near Yorkshire at the next full moon.

• Lily learned Sensus Altus from Regulus, endured its sensory overload, and promised to master the Constant Shield Charm and keep training.
• Regulus questioned McGonagall about permanent Transfiguration and realized Severing might let him erase an object's original nature before reshaping it, while Sirius demonstrated his growing Transfiguration skills.
• Regulus urged Sirius to think about his relationship with Magic and the world, trained Hermes, and arranged for his friends to claim he was visiting France while he took leave.
• Regulus altered his appearance and magic, then used Fawkes's Phoenix Flame to try to place Bellatrix's Guardian Will in a gap in Hogwarts's space, but the Castle rejected it.
• Disguised as Geralt, Regulus met Dumbledore in a tavern, reported Voldemort's plans and activities, and challenged Angus Kro to a duel that persuaded him to consider joining the fight.
• Regulus followed Dumbledore to the Hog's Head Inn, met Aberforth, and told Dumbledore he wanted to visit a village north of Yorkshire at the next full moon to check on the werewolves and Edgar Tomlin.

Regulus and Dumbledore investigated Greyback’s growing pack, then Regulus rescued the Pruitt brothers and drew Voldemort’s attention with his attack on Dolohov’s stronghold. As his family warned him that Voldemort was investigating, Regulus planned to manage the inquiry in France, then returned to Grimmauld Place with Baruk and triggered the Black family home’s defenses.

• Regulus and Dumbledore watched Greyback’s expanding pack, and Dumbledore awakened Edgar’s humanity within Bellatrix’s Guardian Will.
• After Moody reported that Dolohov had trapped Fabian and Gideon Pruitt, Regulus blasted apart the castle entrance and helped the brothers escape.
• Regulus fought Dolohov at the ruins, struck him as he tried to Apparate, and later taught Fabian the principles behind his compressed-air spell.
• Voldemort examined Dolohov’s memories of Regulus’s attack, while Bellatrix confirmed that Regulus had not gone to India.
• Regulus sparred with Fabian and Gideon, while Orion learned that people were asking questions about Regulus and warned him that Voldemort was investigating.
• Regulus told Dumbledore he would let Voldemort’s investigators find him in France, and Dumbledore offered him help without demanding explanations.
• Regulus found Baruk tending a garden, then persuaded it to leave with him and flew to Grimmauld Place on the Starry Sky Kite.
• Orion mistook the white-haired Regulus for a dangerous wizard as the Black Ancestral Home’s defenses sealed the Study, and Regulus sensed him hiding nearby.

Regulus returned to the Black family estate, developed new Alchemy tools, and prepared for a coming war as Bellatrix arranged an attack on the French vineyard. After Regulus defeated the smugglers and negotiated with French officials, the estate was secured and he left the possibility of future alchemical cooperation open.

• Regulus revealed his identity to Orion, warned that war could begin within a year, and departed for the family’s Provence estate with Walburga’s gifts.
• Regulus met Felix Laval, explored the vineyard, and gave Baruk a territory among the vines while studying Alchemy in Marseille and at the manor.
• Regulus devised reversible alchemical circuits and built a Resonance Disk that revealed the Magic Power patterns of objects, creatures, and wizards.
• Bellatrix recruited Victor Delacroix to target the estate, and Felix warned Regulus as Delacroix’s forces gathered near Provence.
• Regulus and Baruk confronted Delacroix’s raiders, and Regulus injured or incapacitated the attackers before containing the survivors beneath a canopy of blue-white fire.
• Regulus discovered Bellatrix’s involvement through Delacroix’s memories, then refused French Auror Laurent Gaston’s demand to inspect his wand without proper authorization.
• Regulus accepted Isabelle de Lavigne and Gaston’s offer to take custody of the gang and strengthen estate security, while proposing future alchemical cooperation with France.