Chapter Summaries

Rhine earned the Demon Refining Pill Recipe after clearing over a thousand forbidden books, then learned that the Four Giants had once hidden the Book of the Dead in Hogwarts Library. Fearing the book’s connection to an ancient threat, he erased Mrs. Pince’s memory and left determined to grow stronger.

• Rhine cleared more than a thousand forbidden books, earning Mrs. Pince’s gratitude and the system’s Demon Refining Pill Recipe.
• Mrs. Pince revealed that generations of librarians had searched for books concealed in the library since the era of the Four Giants.
• Mrs. Pince identified one missing book as the Book of the Dead, and Rhine sensed its mad aura within the Restricted Section.
• Rhine warned Mrs. Pince that the Four Giants might have sealed the books for a reason, then used Obliviate to make her forget the secret.
• Rhine left the Restricted Section still sensing a threat, recalled Trelawney’s prophecy, and asked the system to receive the Demon Refining Pill Recipe.

Rhine improved the Demon Refining Pill Recipe to remove its hidden dangers and wondered what materials could substitute for demons. Dumbledore tasked him with running obstacle-course combat training and gave him a Whomping Willow, while Rhine spotted both it and Fluffy as ingredients for his pills.

• Rhine studied the Demon Refining Pill Recipe, identified its risks, and devised an improved formula using different types of demons and Spiritual Fire.
• Dumbledore told Rhine to lead obstacle-course drills so Harry and the others could prepare for Voldemort's possible return and worse dangers.
• Dumbledore gave Rhine a young Whomping Willow and permission to arrange mature ones in the obstacle course.
• Rhine recognized the Whomping Willows as Wood and Plant Demon ingredients and saw Fluffy as a possible Flesh and Blood Demon ingredient.

Rhine harvested Fluffy’s blood and refined mature Whomping Willow into pills after discovering they tasted like sweet, stir-fried cabbage. He used his Farming Dexterity talent to enlarge the remaining Whomping Willow, leaving them terrified that he planned to eat them too.

• Rhine drew blood from Fluffy until he had filled three large barrels, then infused the dog with spiritual energy that helped its fourth head develop.
• Rhine entered the second challenge, where mature Whomping Willow attacked him and broke their teeth against his body.
• Rhine roasted and ate several Whomping Willow, enjoying their sweet flavor, then provoked more into biting him so he could refine them into emerald-green pills.
• Rhine used his Farming Dexterity talent and spiritual energy to make the remaining Whomping Willow grow larger, frightening them into calling for Professor Sprout.

Rhine met Professor Sprout while carrying a Whomping Willow he had raised remarkably well, and the system identified her as True Person Yu Ding. He considered the powerful rewards he could gain by befriending her, including medical knowledge, arcane insight, and a method for forging an Immortal-Slaying Sword.

• Professor Sprout worried that Rhine could not properly care for the Whomping Willows and went to meet him.
• Rhine emerged carrying a Whomping Willow that behaved affectionately in his arms, surprising Professor Sprout.
• Professor Sprout noticed how quickly and well the Whomping Willow had grown and asked Rhine how he had raised it.
• The system identified Professor Sprout as True Person Yu Ding and offered rewards for deepening their friendship.
• Rhine considered how the Mystic Way of Medicine, Arcane Arts Understanding, and Immortal-Slaying Sword Forging Method could aid him.

Rhine explained his success with the Whomping Willows as a game that let them follow their nature, earning Professor Sprout’s trust and a new talent. When Harry and his friends asked him to teach them magic, Rhine stunned them and brought them to a training room, where he set a three-headed dog on them as a “beginner” challenge.

• Rhine told Professor Sprout that playing a reaction game with the Whomping Willows had helped them grow, and she awarded Gryffindor twenty points and invited him to co-author a paper.
• The system said True Person Yu Ding regarded Rhine as a casual acquaintance and granted him the talent Mystic Way of Medicine.
• Harry, Ron, Hermione, and Neville asked Rhine to teach them magic so they could help face the Dark Wizard they believed was hiding at Hogwarts.
• Rhine warned the group that his training would be painful, then stunned them and secretly took them to a training room.
• Rhine introduced Fluffy, a three-headed dog, as the group’s beginner tutorial challenge, and Harry and the others protested in alarm.

Rhine put Harry, Hermione, Ron, and Neville through a brutal magical gauntlet, pushing them to cast spells while facing Fluffy, Devil’s Snare, and Whomping Willows. Hermione urged the others to endure because Rhine must have survived even harsher trials, and the group resolved to continue training; Rhine’s system then recorded that his cultivation companions were inspired by his supposed fearless resolve.

• Rhine set Fluffy on Harry, Hermione, Ron, and Neville and urged them to stay calm and use their magic instead of fleeing.
• Hermione cast Protego, Harry used Expelliarmus, Ron cast Bombarda, and Neville accidentally healed Fluffy before Rhine ended the half-hour chase.
• Rhine knocked the group unconscious and put them through another trial, trapping them in Devil’s Snare while Hermione faced wheeled Whomping Willows.
• After Rhine returned them to the common room, Hermione reminded the others that Rhine had overcome similar trials, and Harry, Ron, and Neville agreed to keep training.
• Rhine’s system reported that the young Nezha, the young Lei Zhenzi, and the others were inspired by his apparent fearlessness and resolved to face their own trials.

As Harry and his friends grew stronger through Rhine’s increasingly difficult training, Rhine realized the Golden Snitch and Bludgers could provide the Metal and Stone Demon materials he needed. With the Gryffindor-Slytherin Quidditch match set for three days later, Rhine prepared to compete for the balls while Quirrell plotted to use the match to kill him.

• Harry and his friends improved rapidly through Rhine’s nightly challenges, while the stages and their dangers grew harder.
• Rhine continued searching for a Metal and Stone Demon to complete the materials for his Demon Refining Pill, but found none.
• Hally told Rhine that the Quidditch season had been moved forward and that players could keep the match’s balls as rewards.
• Rhine realized the Golden Snitch and Bludgers could serve as Metal and Stone Demon materials, and resolved to compete for them.
• Hogwarts students eagerly anticipated the Gryffindor-Slytherin match, while Quirrell planned to curse Rhine off his broom and kill him.

Rhine discovered that Quirrell planned to attack him during the Quidditch match, but instead of withdrawing, he devised a way to turn Quirrell’s bad luck against him. During the match, Rhine hit a Bludger into the stands and struck Quirrell, who refused to leave, while Rhine welcomed the fortune he gained.

• Rhine sensed Quirrell’s malice, ignored the system’s warning to withdraw, and studied Quidditch fouls for a way to target him.
• Three days later, Gryffindor prepared to face Slytherin, with Rhine replacing George as a Beater and Hally playing in her mother’s uniform.
• When a Bludger threatened Angelina Johnson, Rhine struck it so hard that it flew into the stands and slammed into Quirrell.
• Quirrell healed his ribs but stayed to watch, blaming Rhine for his misfortune, while Rhine gained fortune and urged him to hold on.

During the Quidditch match, Rhine resisted Quirrell’s curse and used a Bludger to protect Gryffindor players while striking Quirrell twice. Quirrell refused to leave the stands, and Rhine prepared to continue their battle of Dao hearts.

• Gryffindor scored through coordinated Chaser play as Wood and the team realized Slytherin’s players had Nimbus 2000s and were better than expected.
• Quirrell secretly cursed Rhine’s Flying Broomstick, but Rhine’s Achieve Vajra Indestructible Body talent made the curse disappear.
• Rhine redirected a Bludger away from Angelina’s path, allowing her to score another goal and high-five him.
• The Bludger struck Quirrell in the nose despite his Shield Charm, and he healed himself but stayed in the stands.
• Rhine’s system declared their clash a battle of Dao hearts, and Rhine struck the Bludger toward the back of Quirrell’s head again.

Rhine dominated the Quidditch match while Quirrell endured repeated Bludger attacks, until Voldemort took control and cursed Rhine’s broom. Rhine’s renewed assault sparked an epiphany that merged his staff and sword talents into a new ability.

• Rhine’s Bludger strikes disrupted Slytherin’s tactics as Gryffindor’s Chasers and Wood scored repeatedly.
• Malfoy ordered Slytherin to stall while he and Harry searched for the Golden Snitch, and Rhine turned his attention to Quirrell.
• Quirrell reached his limit after the Bludger battered him repeatedly and awakened Voldemort, who cast a powerful Shield Charm and cursed Rhine’s Nimbus 2000.
• Rhine attacked Voldemort with the Bludger, increasing the pressure until Staff Mastery resonated with Sword Skill Reaches Divinity.
• Rhine entered an epiphany and gained the new talent Son of Heaven in Staff, Swan Goose on Sword!

Rhine’s staff-and-sword talents evolved into Son of Heaven in Staff and Swan Goose on Sword, which he suspected might lead toward the Great Dao of Strength. He used the new techniques to badly injure Voldemort during Gryffindor’s victory, then received Harry’s Golden Snitch and began refining a Demon Refining Pill.

• Rhine realized his insights had evolved his staff and sword talents and wondered whether the new talent could develop into the Great Dao of Strength.
• Rhine struck Voldemort with the Bludger using Son of Heaven in Staff and Swan Goose on Sword, breaking his defenses and flattening his nose.
• Harry caught the Golden Snitch, and Gryffindor defeated Slytherin by two hundred and sixty points to zero.
• Rhine’s system reported that he had narrowly survived an encounter with Daoist Duobao’s incarnation during the Sect Competition.
• Harry gave Rhine the Golden Snitch, which Rhine recognized as the final ingredient needed to refine a Demon Refining Pill, and Rhine started the furnace.

After Gryffindor celebrated its Quidditch victory, Rhine refined nine Demon Refining Golden Cores in the Room of Requirement and consumed them, greatly expanding his Yuan Sea. He then prepared to test the Three Heads and Eight Arms Divine Ability, which he had previously avoided using because it weakened his body.

• Professor McGonagall joined Gryffindor's post-match celebration and allowed the students to celebrate despite their rule-breaking.
• Rhine left the common room secretly and refined Demon Refining Pills from the Three-Headed Dog and Whomping Willow essences, the Golden Snitch, and Gubraithian Fire.
• Rhine produced nine Golden Core-quality Demon Refining Pills and swallowed them all.
• Rhine used the pills' spiritual energy to expand his Yuan Sea more than tenfold with the Five Elements Inversion Returning Yuan Sea talent.
• Rhine invoked the Three Heads and Eight Arms Divine Ability to test whether his expanded Yuan Sea let him use it safely.

Rhine tested the Three Heads and Eight Arms Divine Ability, then learned that Voldemort had gone to the Forbidden Forest to attack Hagrid. Rhine flew there to save him as Voldemort killed a Unicorn and cast the Cruciatus Curse on Hagrid.

• Rhine activated Three Heads and Eight Arms, gaining immense strength but draining nearly all the Power of Yuan Sea within seconds.
• The system warned Rhine that Voldemort had gone to Plum Mountain to target Yuan Hong, and Rhine realized he needed to reach Hagrid in the Forbidden Forest.
• Rhine summoned his Nimbus 2000 and flew toward the Forbidden Forest, fearing Voldemort would kill Hagrid.
• Voldemort ordered Quirrell to kill Unicorns for their blood, and Quirrell killed one in the Forbidden Forest.
• Hagrid followed the Unicorn's cry and confronted Voldemort, who ensnared him with a python and cast the Cruciatus Curse.

Voldemort tortured Hagrid in the Forbidden Forest and demanded the secret to passing the Three-Headed Dog, while Rhine searched for them. Rhine arrived just as Voldemort was about to kill Hagrid and stood between them, determined to take Hagrid home.

• Voldemort tortured Hagrid with the Cruciatus Curse and dragged him through the Forbidden Forest, killing another Unicorn along the way.
• Rhine searched the vast Forbidden Forest with the Profound Insight Heavenly Eye and found Hagrid's blood and dropped umbrella.
• Voldemort drank blood from his third Unicorn and demanded that Hagrid explain how to get past the Three-Headed Dog.
• Hagrid bit off his tongue to keep Voldemort from extracting the secret, and Voldemort prepared to kill him.
• Rhine interrupted Voldemort with a pebble, then put Hagrid behind him and vowed to take him back to Hogwarts.

Rhine confronted Voldemort in the Forbidden Forest and used his unusual magic to wound him despite Voldemort’s confidence. Voldemort answered with the Killing Curse, only to see Rhine cast a seemingly improved version, leaving him stunned and questioning who the real Dark Lord was.

• Voldemort destroyed Rhine’s broom, threatened him and Hagrid, and dismissed Rhine’s challenge to his power.
• Rhine used the Imperius Curse, transformed by his talents into a spiritual attack that struck Voldemort’s soul.
• Rhine followed with the Cruciatus Curse, turning it into guided sword qi that wounded Voldemort when he Apparated away.
• Voldemort cut away the injured flesh and attacked Rhine with the Killing Curse.
• Rhine cast his own Killing Curse as black sword qi, astonishing Voldemort with its unfamiliar power.

Rhine protected Hagrid from Voldemort’s attacks, then transformed with the Three Heads and Eight Arms Divine Ability and overwhelmed Voldemort in battle. Voldemort fled toward Hogwarts, while the system announced that Old Ancestor Hongjun was watching Rhine.

• Voldemort attacked Hagrid to keep Rhine from escaping, but Rhine’s golden light destroyed the curses.
• Rhine hid Hagrid behind a tree, then transformed into a towering, three-headed figure with eight arms.
• Rhine struck at Voldemort so rapidly that Voldemort’s Apparition and defensive spells could not protect him.
• Rhine’s Son of Heaven in Staff shattered Voldemort’s defenses and sent him flying, undoing the benefits he had gained from drinking Unicorn blood.
• Voldemort turned into black smoke and fled toward Hogwarts, calling for Dumbledore to save him.
• The system announced that Old Ancestor Hongjun was watching Rhine.

Rhine rescued Hagrid from Plum Mountain, fought back a maddening gray mist in the Forbidden Forest, and learned that his bond with Yuan Hong had earned him the Eight-Nine Arcane Arts. After Hagrid was sent to St Mungo’s, Rhine told Harry, Hermione, and Ron to train and set out to destroy the Horcrux hidden at Hogwarts.

• Rhine struck the gray mist in the Forbidden Forest with his staff, sword, and Lotus Brilliance Path Opening Sky Light, then escaped with Hagrid into Hogwarts’s protective magic.
• Rhine read the system messages about Hongjun, Daoist Duobao, and his new Life-and-Death Friendship with Yuan Hong, which granted him the Eight-Nine Arcane Arts.
• Madam Pomfrey said Hagrid’s injuries from the Cruciatus Curse required treatment at St Mungo’s, and Harry suspected Voldemort had hurt him.
• Rhine urged Harry, Hermione, and Ron to become stronger so they could avenge Hagrid, then headed to the Room of Requirement to destroy the diadem Horcrux.

Rhine learned the Eight-Nine Arcane Arts and rapidly advanced his physical strength, defenses, regeneration, and lifespan. He chose to preserve Ravenclaw’s diadem while searching for a way to remove Voldemort’s soul fragment, then encountered Bloody Baron and received a system prompt identifying an Underworld Judge.

• Rhine claimed the Eight-Nine Arcane Arts and used his comprehension and Achieve Vajra Indestructible Body talent to reach its beginner stage.
• The Eight-Nine Arcane Arts greatly increased Rhine’s physical power, defenses, regeneration, and lifespan.
• Rhine examined Ravenclaw’s diadem in the Room of Requirement and decided to destroy Voldemort’s soul fragment without destroying the diadem itself.
• Rhine searched Hogwarts’ Restricted Section for a way to extract the Horcrux soul fragment and restore the diadem, but found no suitable magic.
• While walking through Hogwarts at night, Rhine met Bloody Baron, and his system displayed a message about encountering an Underworld Judge and an approaching Tribulation.

Rhine tried to befriend Bloody Baron, whom the system identified as an Underworld Judge, hoping to gain help removing Voldemort’s soul fragment from Ravenclaw’s diadem. After Bloody Baron rejected him, Rhine transformed into Helena Ravenclaw with the Eight-Nine Arcane Arts and used her appearance to draw him into a conversation.

• Bloody Baron recognized Rhine but refused to talk, lowering his favorability and warning him not to interfere in the Tribulation.
• Rhine reasoned that Bloody Baron’s feelings for Helena Ravenclaw could overcome his aloofness and decided to exploit them.
• Rhine used the Eight-Nine Arcane Arts to transform into a ghostly likeness of Helena Ravenclaw.
• Rhine approached Bloody Baron in disguise and told him that Helena had come because Rhine urged her to speak with him.
• Bloody Baron apologized to Helena and promised to apologize to Rhine.

Rhine gained the Underworld Judge’s soul-severing talent and learned from Bloody Baron how the Hogwarts founders’ disappearances were tied to a mysterious book and the stolen diadem. Baron revealed that a terrifying dream of R’lyeh’s echo preceded his journey to find Helena.

• Rhine received Underworld Protection and Soul Severing and Spirit Severing after improving his relationship with the Underworld Judge.
• Rhine asked Bloody Baron what had happened at Hogwarts before he was sent to find Helena.
• Baron recounted how the founders studied strange books, Gryffindor and Hufflepuff vanished after entering the deep sea and the Forbidden Forest, and Ravenclaw died after making arrangements at Hogwarts.
• Rhine inferred that the founders’ conflicts and disappearances were connected to the Book of the Dead and that Helena’s theft of the diadem had worsened the danger.
• Rhine asked Baron why he had killed Helena, and Baron said he had dreamed of a strange shore and city before leaving to find her.
• Baron revealed that the dream carried the Echo of R’lyeh.