Chapter Summaries

Moriarty and his allies ambushed Larpo in the English Channel and killed him after Zhang Tianxue exposed his hiding place. Larpo revealed that Gamp and Light had sabotaged his plan, leaving Moriarty wary of their greater scheme.

• Moriarty, Lilith, Diana, and Zhang Tianxue flew toward Larpo's hiding place in the English Channel, where Moriarty planned to use his upgraded magic.
• Zhang Tianxue used the Mustard Seed Magic Array to remove the sea and reef around Larpo, exposing him on the seafloor.
• Moriarty used Water Elemental Magic to force Larpo back into human form and take control of his body.
• Larpo said Gorgon Isobella had acted early and ruined his plan for Basilisks to mature inside Hogwarts students, and Moriarty explained that Gamp had accelerated the eggs' maturation.
• Larpo threatened Moriarty and praised Gamp and Light, but Moriarty expanded the water molecules inside him and destroyed him.
• Lilith and Diana found no contingencies Larpo had left behind, and Moriarty concluded that Gamp had betrayed Larpo while he was weakened.

Light planned to rally the Immortality Organization by recruiting Dracula from another Harry Potter world, while Moriarty learned of his plan and prepared to travel through time to stop him. The chapter ended with Lilith suggesting Moriarty take someone with him.

• Moriarty restored the sea and reasoned that Gamp and Light had sacrificed Larpo to buy time for a larger scheme.
• At the Vatican, Light proposed attacking Hogwarts with members recruited from the Multiverse and traveled to another world to free Dracula.
• Light reached the Hogwarts of Harry Potter and the Cursed Child and used Draco Dormiens Nunquam Titillandus to enter the route to Avalon.
• The Time Management Bureau detected Light's temporal activity, and Zhang Tianxue told Moriarty that he was likely trying to rescue Dracula.
• Moriarty used the Eyes of Time-Lag and resolved to stop Light, while Lilith suggested he bring someone along.

Moriarty brought Violet to another Harry Potter world so she could grow stronger by fighting Dracula. They discovered Dracula had already been rescued, and Moriarty prepared to take Violet to Avalon.

• Lilith suggested bringing Violet to fight Dracula, and the Magical AI judged the plan 97% likely to succeed.
• Moriarty took Violet to the Forbidden Forest and activated the Eyes of Time-Lag, opening a portal to another world.
• Moriarty and Violet entered the Harry Potter and the Cursed Child world and secretly made their way into Hogwarts.
• Moriarty found the portrait where Dracula had disguised himself as the Headless Knight, but it was blank, revealing that Dracula had been rescued.
• Moriarty told Violet to prepare for battle and spoke Dragon Language to the portrait, preparing to travel to Avalon.

Moriarty and Violet entered Avalon to confront Dracula, who had regained his Blood Ancestor strength. After Dracula apparently struck Moriarty down, Violet awakened her ancestral Primal Form and prepared to execute him.

• Moriarty and Violet entered Avalon and found Light with the revived Dracula on a snowy mountain.
• Moriarty attacked Dracula, while Violet's bats failed to harm him and Dracula turned them against her.
• Dracula unleashed blood clouds, which Moriarty purified with Healing Renewal, then attacked and apparently felled him.
• Violet's grief and fury transformed her into the Blood Ancestor Prime's Primal Form.
• Violet named Dracula and invoked the Feather of Judgment to sentence him to death.

Violet subdued Dracula with her progenitor bloodline and sentenced him to seal himself in the snowy mountains, while Moriarty kept Light from intervening. Light fled to another HP world, where Professor Dracula attacked him; Moriarty and Violet arrived to find Light already retreating.

• Violet suppressed Dracula, who submitted, offered her a throne made from his wings, and accepted a thirty-thousand-year sentence in the snowy mountains.
• Moriarty trapped Light inside a crystal pyramid long enough for Dracula to leave, and Light vanished to another world after mocking him for trusting Dracula.
• Violet sensed a powerful Blood Clan member in Light's next world, and she and Moriarty followed his trail through a time-space gate.
• At Hogwarts, Professor Dracula recognized Light as a stowaway from another time-space and stopped him from escaping because he wanted to study his time-space power.
• Moriarty and Violet arrived in the Scottish Highlands and saw Light fighting Professor Dracula before Light tore across the sky and fled.

Moriarty, Lilith, and Jericho traveled to another world after Light targeted Yakei Go in Japan. They reached Mahoutokoro School of Magic, where Jericho was exhausted from the flight and Moriarty and Lilith exchanged knowing looks.

• Moriarty returned Violet to the main timeline, and she went to Ventrue Castle to show the Ventrue Queen her new power.
• Jericho asked Moriarty to bring him on a mission so he could grow stronger, and Moriarty agreed that they would handle the next operation together.
• Zhang Tianxue called to report that Light had traveled to another world, possibly to recruit Yakei Go, and that Light's phantom was glowing with seven-colored light.
• Moriarty told Jericho that Yakei Go lacked Dark Elemental Magic in that world, while Lilith recalled that Yakei Go's Shikigami was the Ghost Bride and resolved to settle their old grudge.
• Moriarty, Lilith, and Jericho traveled through the Forbidden Forest portal to Japan and flew to Mahoutokoro School of Magic.
• Jericho collapsed from exhaustion after their flight, while Moriarty and Lilith silently traded intense looks.

Moriarty, Lilith, and Jericho confronted Yakei Go at Mahoutokoro School of Magic and discovered Light had gained power by assimilating his counterparts across the Multiverse. Lilith trapped Light by imprisoning the space around him, leaving herself and the others sealed in Tengu Hall as Jericho protested being stuck watching Moriarty and Lilith together.

• Moriarty, Lilith, and Jericho entered Mahoutokoro School of Magic after learning that someone had visited Yakei Go before them, and Moriarty warned that Light had gained a rainbow-lit new power.
• Moriarty exposed Yakei Go's connection to Light, and Lilith destroyed the Ghost Brides while Jericho moved in to fight Yakei Go.
• Moriarty called Light out, and Light revealed that he had devoured, fused with, or assimilated his counterparts across the Multiverse to grow stronger.
• Lilith trapped Light by petrifying and imprisoning the surrounding space, restraining his time-based movement at the cost of sealing herself and the others inside.
• Jericho begged Lilith to undo the seal so he would not have to watch her and Moriarty flaunt their love, then punched Yakei Go.

After escaping Light in the Mahoutokoro world, Moriarty returned to Hogwarts with Lilith and Jericho, only to learn that Light had traveled to 1707 and recruited Ulick Gamp. Moriarty prepared to pursue Light into a dangerous era that would test the wizarding world’s history.

• Jericho beat Yakei Go while Light revealed a peaceful power and escaped Lilith’s attack on Tengu Hall.
• Moriarty used Alchemy Space to take Lilith and Jericho out of the collapsing Tengu Hall, and the three returned to the Main World without realizing Light had survived.
• Moriarty, Lilith, and Jericho returned to Hogwarts and ate dinner before Zhang Tianxue called with news of Light’s latest time travel.
• Zhang Tianxue told Moriarty that Light had gone to a world set around 1707 and recruited another-world Ulick Gamp.
• Moriarty told Zhang Tianxue that stopping Light was necessary, then considered the dangers of 1707 and the powerful magical legend he would face.

Moriarty chose seven companions to travel with him to 1707 and led them through a temporal portal, but the group arrived on an island in the Bermuda Islands instead of the Forbidden Forest. They suspected the danger lay beneath the sea.

• Moriarty selected Lilith, Jericho, Marcus, Soldaya, Neville, Draco, and Hermione to accompany him, while Astoria stayed behind to arrange their leave.
• Moriarty invited Draco to join the journey, and Draco chose to go despite his doubts.
• Moriarty summoned Hermione from Hogwarts in her white cat Animagus form, and she joined the group.
• Moriarty opened a temporal portal with the Eyes of Time-Lag, whose temporal power had weakened, and the eight travelers passed through it.
• The group emerged on a sunny, sandy island beside the sea, and Hermione identified it as part of the Bermuda Islands.
• Moriarty and Lilith concluded that any unexpected danger was likely beneath the sea.

Moriarty rescued Captain Jack from a magically guided storm, and Jack revealed that he served aboard the British Royal Navy flagship Black Onyx. As Jack sized up the group and bantered with Draco, Moriarty began to suspect the captain was more than an ordinary officer.

• Hermione explained the ocean’s depths and creatures, while Marcus warned that magical monsters might live deeper than Muggles had explored.
• Moriarty recognized that magic was driving a storm toward a small boat, dispersed it, and levitated its survivors to safety.
• Lilith and Hermione identified the unconscious survivor as a British Royal Navy officer, and Draco cleaned him with Scourgify after he woke and vomited seawater.
• Jack said a Hogwarts wizard had served aboard his ship and introduced himself as Jack Victor, a marine captain on the Black Onyx.
• Jack accurately guessed the group’s roles but called Draco a chatterbox, clown, or possibly Moriarty’s child, prompting Draco to protest.
• Moriarty watched Jack’s composure and perceptiveness and wondered whether he was really just an officer.

Jack explained that the Royal Navy had sent the Black Onyx to hunt the Norwegian Sea Serpent after Hogwarts wizards discovered it, and Moriarty’s group traveled with him to the ship. After boarding, Moriarty spotted a wizard who seemed familiar to him.

• Jack told Moriarty and the others that the Black Onyx had been sent to capture or kill the Norwegian Sea Serpent, which Hogwarts wizards had discovered crossing the Atlantic.
• Moriarty asked Jack to take them to the Black Onyx, and Soldaya transformed gravel into a small boat after Draco cut down trees with Sectumsempra.
• Moriarty used a wind charm to propel the boat toward the Black Onyx, leaving Jack impressed by his magic.
• Jack reunited with the Black Onyx and its crew, then brought Moriarty and the others aboard.
• Moriarty noticed a robed wizard among the welcoming crew and felt he had seen the man before.

Moriarty learned that the mysterious wizard was a member of the Black family, then discovered that Oceanification was afflicting the ship’s soldiers. After refusing to fight the Norwegian Sea Serpent, Moriarty heard Black offer a partnership to claim the power behind its legend and asked whether he knew Ulick Gamp.

• Moriarty recognized that the wizard called Black might be an ancestor of the Black family and used Draco’s family motto to reveal their connection.
• Jack reported that around twenty sailors were suffering from Oceanification, and Marcus found that magic could only slow the transformation.
• Captain Adams invited Moriarty’s group to lunch and asked them to deal with the Norwegian Sea Serpent, but Moriarty refused.
• Black approached Moriarty, claimed the serpent guarded a treasure granting great power, and proposed they share it in exchange for helping Moriarty’s group.
• Moriarty asked Black whether he had heard of Ulick Gamp.

Moriarty and Lilith learned that Justus Peverell had become Ulick Gamp’s key lieutenant and helped build his powerful faction, prompting Moriarty to reconsider the future Gamp was creating. Their conversation with a Black family wizard ended when Jack reported that the Norwegian Sea Serpent had arrived unexpectedly.

• A Black family wizard warned Moriarty and Lilith that Ulick Gamp had royal backing, powerful supporters, and plans to monitor wizards.
• The wizard identified Justus Peverell as Gamp’s trusted organizer, responsible for recruiting supporters and eliminating opponents.
• Moriarty and Lilith recognized many of Gamp’s supporters as people connected to their own legacy and reflected on how their work might be overturned.
• The Black family wizard confessed his anger and fear about Gamp’s growing power and the future he was leading wizards toward.
• Jack summoned Moriarty and Lilith, reporting that the Norwegian Sea Serpent had arrived uninvited.

Moriarty and his companions learned that the Norwegian Sea Serpent was an intelligent, powerful creature and watched the Black Onyx prepare to fight it. As the sea monster arrived in a storm, the musket squad fired, and Jack warned the Black wizard that its tentacles were coming.

• Jack told the Black wizard that the Norwegian Sea Serpent was approaching, and Jericho and the Black wizard explained its extraordinary powers to Moriarty and the others.
• Captain Adams assured Moriarty that the crew would defend the Black Onyx, while Alexander estimated that the sea monster would be within 328 feet in a minute.
• Adams revealed the plan: Jack's musket squad would enrage the sea monster, then the Black wizard would try to take the treasure it guarded.
• The Norwegian Sea Serpent brought a violent storm, and Moriarty explained that its rain carried Magic Power that let it track anyone it touched.
• Jack's musket squad fired at the sea monster, and Jack warned the Black wizard that its tentacles were coming.

Moriarty and his companions watched the Black wizard use ancient magic to protect the Black Onyx and destroy a monstrous tentacle. As the tentacle withdrew, a far larger creature emerged beneath the ship and hurled the Black Onyx into the air.

• Jack spotted a gigantic tentacle rising from the sea, and Moriarty said he would let the Black wizard handle the storm and waves.
• The Black wizard stopped the waves with Repel Three Feet and covered the Black Onyx with several defensive Spells.
• The Black wizard summoned a white dog Patronus to dispel the darkness, then blasted the tentacle apart with Great Exploding Spells.
• Draco questioned why powerful ancient wizards had been persecuted by Muggles, and Moriarty considered how little sense it made.
• A colossal creature surfaced beneath the Black Onyx and struck it, sending the ship flying into the air.

Moriarty confronted the Norwegian Sea Serpent after it attacked the Black Onyx and revealed a treasure beneath its maw. The treasure turned out to be the Hairy Heart, leading Moriarty to suspect that Beedle the Bard, Light, and Gamp were involved in a trap.

• The Norwegian Sea Serpent smashed the Black Onyx, but the Black family wizard restored the ship and returned everyone to the deck with powerful magic.
• The sea serpent’s presence drove the crew into madness and entranced Marcus, until Moriarty and then the Black family wizard recovered; Moriarty shielded the crew and agreed to claim half the guarded treasure.
• Moriarty flew at the sea serpent, severed its tentacles with a giant water sword, and lifted it from the ocean with Water Elemental Magic.
• Moriarty cut open a pouch beneath the sea serpent’s maw, where a black, hairy heart sprang out; he knocked it away and recognized it as the Hairy Heart.
• Moriarty suspected Beedle the Bard was present and concluded that Light and Gamp had set a trap.

Moriarty discovered that Captain Jack was Ulick Gamp, who invited him and his companions to his home to discuss the fate of wizardkind. The Black Onyx returned to the English Channel, where Gamp’s supporters awaited them and Moriarty recognized their leader.

• Light’s ambush revealed Beedle the Bard, who admitted he had staged the test to judge Moriarty.
• Light explained that Ulick Gamp had arranged the larger scheme, and Jack transformed into Gamp.
• Gamp bowed to Moriarty and invited him and the others to Little Gryphon Shack for a meeting about wizardkind’s fate.
• Moriarty’s group accepted the invitation, joined Light and Beedle aboard the Black Onyx, and helped defeat the Norwegian Sea Serpent before sailing back.
• At dawn, the Black Onyx reached the English Channel, where Gamp’s supporters gathered to meet him.
• Gamp dressed himself to look authoritative, while Moriarty told Lilith that the wizard leading the crowd seemed familiar.

Moriarty and Light met with Gamp to discuss the future of wizards and Muggles, after Moriarty revealed that he had killed the Norwegian Sea Serpent. The chapter ended with Gamp eagerly agreeing to hear Moriarty’s account, while Justus warmly recognized his connection to Lilith.

• Justus Peverell claimed the Norwegian Sea Serpent for Gamp, but Gamp revealed that Moriarty had killed it and Moriarty let Gamp keep the corpse.
• Justus apologized to Moriarty and introduced Gamp’s allies, including the Laude brothers, Caspian Crouch, Mr. Greengrass, and members of the Ollivander Family.
• Justus said Lilith seemed like family, and Moriarty declared that Lilith and Hermione were both his partners.
• Gamp gathered Moriarty’s group, Light, and Beedle at the Little Gryphon Shack and asked for their views on wizards and Muggles.
• Moriarty offered to tell Gamp about the future in exchange for drinks, and Gamp sent Justus to arrange them.

Moriarty and Light heard Gamp’s account of wizard persecution, and Gamp rejected his former plan for peaceful coexistence in favor of overthrowing the royal family. After Gamp’s forces captured and burned Buckingham Palace, Moriarty and Gamp recognized Light as a magical legend of the past.

• Gamp described his persecution by the royal family and his failed efforts to secure protections for wizards, then tore up the Secrecy Act.
• Gamp asked Moriarty and Light to help overthrow the royal family, and they agreed to witness his operation.
• Gamp and his companions attacked Buckingham Palace, defeated its defenders, and set it ablaze.
• Gamp declared that he spoke for wizards and that the Ministry of Magic would become their sole voice.
• Moriarty and Gamp identified Light as the magical legend of the past.

Moriarty returned to the Main World after pursuing Light, then learned Light and Gamp had crossed worlds together and set out to stop them. Light and Gamp lured Zhang Tianxue to Mount Longhu, where Light revealed he had absorbed three versions of himself and attacked her as Moriarty sensed that she was in danger.

• Light escaped the previous world, and Moriarty returned to the Main World with Lilith and the others while deciding to travel alone next time.
• Back in the Main World, Light told Gamp what had happened and proposed targeting Zhang Tianxue on their next world crossing.
• A week later, Zhang Tianxue told Moriarty that Light and Gamp had crossed worlds together, but Moriarty refused to let her accompany him.
• Moriarty traveled to another world and discovered that the Dragon Horn Earring was reacting, suggesting Ithiel had been there or was nearby.
• Light and Gamp attacked Mount Longhu, prompting Zhang Tianxue to arrive with her four chief maidservants, whom Light and Gamp bound with their magic.
• Light revealed that he had absorbed three versions of himself and sent the Light-Dark Ribbons after Zhang Tianxue as Moriarty suddenly sensed that his beloved was in danger.