Chapter Summaries

Mobius helped Tesoro find a new purpose by telling him that Devil Fruits might bring Stella back, then entrusted him with integrating Fish-Man Island’s resources. As Whitebeard prepared to fight Kaido and Rayleigh set out for the Giant Kingdom, Mobius joined Rayleigh to meet Scopper Gaban.

• Mobius brought Tesoro to Ryugu Palace, where Shyarly foresaw that he and Stella would marry in the future.
• Mobius told Tesoro that the Revive-Revive Fruit might restore the dead, inspiring him to seek a Devil Fruit and reunite with Stella.
• Mobius put Tesoro in charge of integrating Fish-Man Island’s resources and studied Haki with Rayleigh and Whitebeard.
• Shakky took Hancock and her sisters home, while Whitebeard prepared to return to the New World and Rayleigh set out for the Giant Kingdom.
• Mobius asked Rayleigh to take him to the Giant Kingdom to meet Scopper Gaban, then shared an amused greeting with a captain who noticed Shyarly following him.

Mobius, Rayleigh, and Shyarly sailed aboard a giant warship toward Elbaf, where they enjoyed the giants’ hospitality. After a meal, Rayleigh and Mobius sparred, and Rayleigh’s Conqueror’s Haki-coated slash wounded Mobius before his rapid healing began.

• Mobius said farewell to a trading captain and boarded the giants’ ship with Rayleigh and Shyarly.
• The ship weathered enormous hail as the giants welcomed their guests and shared food with them.
• Rayleigh prepared the giants’ oversized fruit and meat with his sword, and the three ate alongside the giant warriors.
• Rayleigh invited Mobius to spar, and the giants gathered to watch as the pair faced off.
• Mobius attacked in his dragon-man form, but Rayleigh blocked his punch and struck him with a Conqueror’s Haki-coated slash.
• Mobius healed quickly, stood up, and angrily accused Rayleigh of fighting him for real.

Mobius and Rayleigh sailed with the giants to Elbaf, where Rayleigh said his old friend Scopper Gaban could teach Mobius. As they arrived, Gaban confronted Rayleigh over his claim to be the second-in-command, and the two immediately clashed.

• After their spar, Rayleigh explained that he had used Conqueror's Haki Coating because Mobius had made him sense danger, and Mobius asked Rayleigh to teach him.
• Rayleigh said Mobius was not suited to swordsmanship and promised that Scopper Gaban, the Mountain Eater, could teach him at Elbaf.
• During the voyage, Mobius practiced with Rayleigh, told stories to Shyarly and the giants, and learned a few new tricks on his own.
• The giants and Mobius reached Elbaf, where Rayleigh recalled having visited before and a blond man in the kingdom reacted to his arrival.
• As the group prepared to follow the giants to a tavern, Scopper Gaban appeared and accused Rayleigh of claiming to be the second-in-command.
• Rayleigh and Scopper Gaban charged at each other and clashed their Haki-coated weapons, sending shockwaves across Elbaf.

Mobius and Shyarly visited Walrus School in Elbaf and met Saul, who preserved the books rescued from Ohara in the Owl Library. Mobius offered to complete the library’s incomplete copy of Journey to the West, and Saul welcomed them inside to explore its vast collection.

• Rayleigh reunited with Gaban, who introduced him to his wife, Ripley, and son, Colon.
• Mobius and Shyarly visited Walrus School, where Saul greeted them and introduced himself as Jaguar D. Saul.
• Saul explained that he had rescued Ohara’s books and established the school to preserve and share the scholars’ knowledge.
• Shyarly learned that the Owl Library held an incomplete copy of Journey to the West, and Mobius offered to complete it.
• Saul led Mobius and Shyarly into the Owl Library, where Mobius eagerly anticipated exploring its collection.

Mobius used the Book-Book Fruit to record the Owl Library’s collection, expanding his Book World and creating a new realm called the Divine Canon World. As Saul hurried to respond to a cry for help about a woman’s worsening condition, Mobius recognized that the situation was urgent.

• Saul welcomed Mobius and Shyarly to the Owl Library, and Shyarly asked him to find Journey to the West.
• Mobius summoned a book and used the Book-Book Fruit to absorb the words in every volume in the library.
• The library’s oldest surviving book, Divine Canon, created a new Book World containing three mysterious worlds and a dazzling sun.
• Mobius discovered that his book could search its accumulated knowledge and generate answers, then explained his ability to Saul.
• A voice urgently called for Teacher Saul, saying that Mom’s condition had become very bad.

Hajrudin panicked over his sick mother, Ida, and learned from Mobius that Gaban knew Roger’s former ship doctor. Gaban contacted the doctor, and as everyone hurried to Ida’s home, an arrogant voice called out to her.

• Hajrudin burst into the library and told Saul that Ida was bedridden and needed a doctor.
• Mobius told Hajrudin that Gaban had known Roger’s former ship doctor, once called the greatest doctor in the world.
• Hajrudin rushed to the tavern, where Gaban sobered up and called the doctor using a Transponder Snail.
• Mobius, Shyarly, and Saul joined Gaban and the others as they hurried to Ida’s home.
• An arrogant voice called Ida “Big Mom from outside” and questioned whether she would survive.

Loki, Hajrudin, and Gaban visited Ida, whose worsening illness Crocus diagnosed as advanced Ergot Fungus poisoning. With conventional medicine unable to save her, Mobius proposed using Devil Fruits and offered information about possible cures in exchange for his condition.

• Loki arrived at Ida's home and, after Mobius urged him to enter, joined Hajrudin, Gaban, and the others at her bedside.
• Ida described her weakness, stomach pain, muscle aches, and hallucinations to Crocus over the Transponder Snail.
• Crocus diagnosed Ida with advanced Ergot Fungus poisoning and said that conventional medicine could no longer cure her.
• Loki demanded to know who had poisoned Ida and begged Crocus to save her, but Crocus said he could only ease her suffering.
• Mobius suggested that certain Devil Fruits might cure Ida and offered to share what he knew if Loki accepted his condition.

Mobius identified four Devil Fruits that could potentially cure Ida and told Loki and Hajrudin where two might be found. After Shyarly divined Loki's future, the group learned that he would destroy a giant village while calling Ida his mother, suggesting her illness was caused by someone.

• Mobius explained that the Healing Fruit and Fungus-Fungus Fruit were likely in Tontatta Kingdom and Drum Kingdom, respectively.
• Loki ordered Hajrudin to seek the Fungus-Fungus Fruit while he went after the Healing Fruit in Tontatta Kingdom.
• Saul agreed to look for an Eternal Pose to Dressrosa, and Hajrudin accepted Loki's decision as Ida smiled at their concern.
• Mobius asked Shyarly to divine Loki's future, and she saw him destroy a giant village while gripping an old giant by the throat.
• Shyarly said Loki called Ida his mother, and Mobius concluded that someone had likely caused Ida's illness.

Scopper Gaban told Mobius, Rayleigh, and Shyarly the tragic story of Loki, the Cursed Prince, and urged Mobius to help him. Mobius agreed to keep an eye on Loki’s voyage in exchange for Scopper Gaban teaching him a secret skill.

• Scopper Gaban explained that Harald had married Estelida under pressure from Elbaf’s elders, despite loving Ida, and that Estelida was Loki’s mother.
• Scopper Gaban recounted how Estelida threw newborn Loki from the castle into the Underworld, where Loki survived among gigantic beasts and climbed back to the castle.
• Scopper Gaban described Loki’s lonely childhood, his friendship with Ida, and the losses that left him with little reason to trust others.
• Scopper Gaban proposed that Mobius help Loki, saying Loki might become his companion and asking him to watch over Loki’s voyage.
• Mobius agreed to help Loki in exchange for Scopper Gaban’s promise to teach him a secret skill.

Mobius and Shyarly entered Elbaf’s icy Underworld to find Loki, where Mobius used the Heat-Heat Fruit to warm Shyarly and attracted a herd of enormous beasts. The beasts led them to Loki, who sensed their arrival and reacted with a burst of vicious aura.

• Mobius explained snow to Shyarly, gave her warm clothes, and led her into the Underworld with a map.
• Shyarly nearly froze in the wind and snow, so Mobius used the Heat-Heat Fruit to warm her.
• Enormous beasts gathered around Mobius, drawn by his warmth, and he sensed Loki’s presence among them.
• Mobius asked the beasts to take him to Loki, and a scarred black wolf carried him and Shyarly toward their destination.
• Mobius and Shyarly spotted a tall figure hammering at something, and the figure stopped and demanded to know who was there.