Chapter Summaries

Yu Hai forced Ho-Oh to emerge by threatening to summon Lugia with the Silver Feather, and Ho-Oh healed the injured Pokémon before accepting Ash’s challenge. The Rainbow Stone opened a rainbow bridge, leaving Ash ready to face Ho-Oh.

• Marshadow injured Poliwrath, then attacked Yu Hai, but Electivire protected him with Protect.
• Yu Hai raised Lugia’s Silver Feather and called out Ho-Oh, while Electivire weakened under Marshadow’s attacks.
• Ho-Oh appeared, dispelled the darkness, and healed Poliwrath, Electivire, and the other injured Pokémon.
• Ash challenged Ho-Oh, and Ai removed her Rainbow Feather from the Rainbow Stone so Ash could place his own.
• Ho-Oh accepted Ash’s challenge, and the Rainbow Stone formed a brilliant rainbow bridge across the sky.

After Pikachu defeated Ho-Oh, Yu Hai discussed the Silver Feather with Xiao Qian and agreed to give it to the League. Agatha promised him access to the League's Champion Treasury to choose one item, and Yu Hai handed her the feather.

• Pikachu defeated Ho-Oh in a brief battle.
• Yu Hai returned to camp with all his Pokémon safe and spoke privately with Xiao Qian.
• Xiao Qian asked Yu Hai whether he would hand the Silver Feather over to the League, and he agreed, saying he trusted Blaine.
• Agatha and Blaine emerged from the grass, and Agatha offered Yu Hai one item from the League's Champion Treasury in exchange for the Silver Feather.
• Yu Hai chose the League Treasury and gave Agatha the Silver Feather, anticipating that he could select two Champion-level items in total.

Yu Hai and the others said farewell as Ai left for Johto with Agatha, and Blaine prepared to return to Cinnabar with Electivire. After the helicopters departed, Yu Hai and A Long stayed behind and planned to travel through the forest to Cerulean City before continuing to Indigo Plateau.

• Agatha accepted the Silver Feather, and Blaine explained how Yu Hai had received Dragonite from the Joy family after saving Ai.
• Ai departed for Johto with Agatha and her mother, while she, Ash, Xiao Qian, and Yu Hai exchanged tearful and hopeful farewells.
• Blaine assured Yu Hai that Agatha's promise would let him choose an item from the Champion Treasury, then took Electivire's Poké Ball and prepared to return to Cinnabar.
• Ash and Gary called out invitations to battle Yu Hai again as the others boarded the helicopter and left.
• Yu Hai and A Long decided to spend the night at Tianqing Mountain, then cross the forest to Cerulean City and travel onward to Indigo Plateau.

After emerging from the Yunying Mountain Range, Yu Hai rested in Cerulean City and learned that Huangguaxiang’s Battle Arena was in Saffron City. He planned to visit her the next day and try to exchange Medicham’s Mega Stone for Lucario’s Mega Stone before continuing to Indigo Plateau.

• Yu Hai and A Long reached Cerulean City after two difficult days crossing the Yunying Mountain Range, and Yu Hai left his injured Pokémon with Nurse Joy for treatment.
• At dinner, Yu Hai heard that Huangguaxiang’s Battle Arena was in Saffron City and asked A Long to investigate her.
• A Long reported that Huangguaxiang was an Elite Four Trainer whose Pokémon included Medicham and several other Fighting-types.
• Yu Hai decided to offer Medicham’s Mega Stone in exchange for Lucario’s Mega Stone and planned to visit Saffron City the next day.

Yu Hai traveled with A Long to Saffron City and offered Huangguaxiang a Medicham Mega Stone in exchange for a Lucario Mega Stone. Huangguaxiang declined to agree immediately, but began searching for the requested stone and remained determined to obtain Medicham’s Mega Stone.

• Yu Hai and A Long took a train to Saffron City, then went to Huangguaxiang’s Battle Arena to discuss business.
• A Long discreetly bribed a dojo apprentice to arrange a meeting, and Yu Hai sent Huangguaxiang a photo of a Mega Stone to persuade her to come.
• Huangguaxiang met Yu Hai and learned that he had a Medicham Mega Stone and wanted to trade it for a Lucario Mega Stone.
• Yu Hai gave Huangguaxiang half a month to respond, then left the dojo with A Long and went into hiding near the outskirts of the city.
• Huangguaxiang rejected her butler’s suggestion to use force and ordered him to search for a Lucario Mega Stone, planning to visit Shoro Gym in Kalos if they found none within a week.

Yu Hai exchanged Lucario’s Mega Stone for Huangguaxiang’s Medicham Mega Stone after accepting her invitation to meet. The stones were being checked for authenticity as the chapter ended.

• Yu Hai and A Long spent the day training and discussing A Long’s growing collection of Dragon-related Pokémon.
• A caller told Yu Hai that they had found Lucario’s Mega Stone, and Yu Hai agreed to exchange it after dinner.
• Yu Hai arrived alone at Huangguaxiang’s karate dojo and recognized Hao Er and Sabrina as they left after a Battle Arena challenge.
• Huangguaxiang presented Medicham’s Mega Stone, and Yu Hai placed Lucario’s Mega Stone on the table for the exchange.
• Lucario and Medicham examined the stones for resonance while Yu Hai checked the Mega Stone’s panel.

Yu Hai obtained a Mega Stone for Lucario and left Huangguaxiang’s dojo, while Huangguaxiang failed to Mega Evolve Medicham and ordered her butler to avoid trouble in the Orange Islands. Sabrina recognized Yu Hai in Saffron City but chose not to report him to Boss Sakaki, prioritizing her Elite Four ambitions and Team Rocket’s plans.

• Yu Hai confirmed the Mega Stone was compatible with Lucario, accepted it, and left Huangguaxiang’s dojo.
• Huangguaxiang tried to Mega Evolve Medicham, but the attempt failed because the Mega Stone had been drained of energy; she dismissed doubts that it was fake.
• Huangguaxiang rebuked her butler for raising Yu Hai’s connections to Sabrina and Hao Er, then ordered him to search for Mega Stones and avoid unnecessary involvement in Orange Islands affairs.
• Yu Hai disguised himself, told A Long to erase their traces at the villa and meet him at Maiden Canyon, then flew toward Cerulean City on Pelipper.
• Sabrina trapped Hao Er and the bodyguards in an illusion and considered reporting Yu Hai to Boss Sakaki, but decided against it to protect her undercover status and pursue a seat in the Orange Islands Elite Four.

Yu Hai and A Long traveled to the Prehistoric Ruins so Yu Hai could search for clues about Darkrai’s disappearance. After sneaking inside at midnight, he found no useful evidence and returned to bed unsure how to investigate further.

• Yu Hai and A Long boarded a passenger ship from Maiden Canyon and trained during the three-day voyage to Mount Miaza.
• Yu Hai used up the Horn Energy and prepared Horn Powder breakthrough food for Lucario, Scizor, and Forretress.
• Yu Hai and A Long reached the Prehistoric Ruins and booked a room at the tourist facilities near the entrance.
• At midnight, Yu Hai used the administrator's key Gengar had swiped to enter the ruins with Pelipper and Umbreon's light.
• Yu Hai examined the murals and ancient rooms while Gengar searched the room where it had eaten the Ghost Slate Fragment, but they found no clues about Darkrai.
• Yu Hai returned the key and went back to bed, thinking that his next option was to investigate League headquarters.

Yu Hai and A Long camped near Viridian Forest while Lucario broke through to the Elite Four, triggering a stampede that the League contained. After celebrating Lucario’s breakthrough, Yu Hai began their first Mega Evolution together, and the chapter left them surrounded by brilliant light as their bond synchronized.

• Gengar sensed Lucario nearing a breakthrough, so Yu Hai and A Long stopped to camp in the forest.
• Lucario broke through to the Elite Four, and its spreading Aura panicked Wild Pokémon into a stampede toward nearby cities.
• League Trainers rallied to drive the Wild Pokémon back, and the forest settled after Lucario’s breakthrough aura faded.
• Poliwrath used Protect to shield the campsite from the breakthrough’s final surge, then shared an Aura resonance with Lucario.
• Yu Hai congratulated Lucario and fitted it with its Mega Stone wristband before raising his Key Stone to begin Mega Evolution.
• Yu Hai and Lucario called out together as their stones blazed, and their bond reached perfect synchronization within the seven-colored light.

Yu Hai watched Lucario Mega Evolve and tested its new power against A Long’s Gyarados. Lucario overwhelmed Gyarados and began a final Rock Slide attack, leaving the battle’s outcome unresolved.

• Yu Hai worried that Lucario might lose control after Mega Evolution, but Lucario reassured him and showed it could control its power.
• Yu Hai challenged A Long to a battle, and A Long sent out Gyarados while Yu Hai ordered Lucario to attack.
• Lucario dodged Gyarados’s Flamethrower and struck it with Aura Spheres, then blocked its Crunch with an energy bone and its bare hands.
• Lucario escaped Gyarados’s bite with Extreme Speed, and Yu Hai explained that it combined the move with Agility.
• Lucario trapped Gyarados with Rock Tomb, then charged a powerful Rock Slide strike against the stone formation.

Yu Hai’s newly Elite-level Mega Lucario defeated A Long’s Gyarados, then challenged Poliwrath and was badly beaten, exposing the limits of its speed and endurance. Yu Hai treated Lucario, gave it a Black Belt, and reviewed its improved status panel before settling down for the night as League investigators suspected Team Rocket experiments had caused the Pokémon horde in Viridian Forest.

• Lucario used a Rock attack and Thunder Punch to knock out A Long’s Gyarados.
• Yu Hai allowed Lucario to spar with Poliwrath, and Poliwrath defeated it despite Lucario’s Mega Evolution.
• Yu Hai treated Lucario’s injuries and advised it to train its burst moves and strengthen its body with Iron Defense.
• Yu Hai gave Lucario an Elite-class Black Belt and told it to wait until it adapted to its new strength before using its Mega Stone again.
• Yu Hai checked Lucario’s status panel and saw that it had reached level 60, improved its potential and ability, and learned several new moves.
• League investigators suspected Team Rocket’s Pokémon experiments had triggered the horde crisis in Viridian Forest.

Yu Hai reached Pewter City, visited Brock and Luo Ke, and drank until he passed out before heading to the Pokémon Center. After waking in the evening, he realized he had forgotten to feed his Pokémon and hurried to make them dinner.

• Yu Hai arrived in Pewter City with A Long, treated his injured Pokémon at the Pokémon Center, and went to Pewter Gym to see Brock.
• Brock welcomed Yu Hai, introduced him to his girlfriend Luo Ke, and shared lunch and drinks with him while Luo Ke watched over them.
• Brock drank himself unconscious, and Yu Hai left Luo Ke to care for him before vomiting outside the Gym and returning to the Pokémon Center with Lucario and Poliwrath.
• A Long called to ask permission to join Xiao Ming for private work, and Yu Hai agreed before vomiting again and collapsing in his room.
• Yu Hai woke after dark, realized he had forgotten to feed his Pokémon, apologized, and began preparing their dinner.

After a late start, Yu Hai left Pewter City with Umbreon and Lucario and entered the forest route toward Indigo Plateau, where Dragonite fought a powerful Teddiursa. That evening, the group camped in a clearing, and Yu Hai tended to Dragonite while Combee shared the honey she had gathered.

• Yu Hai woke with a hangover, fed his Pokémon, and set out from Pewter City toward Indigo Plateau without visiting Pewter Gym.
• In the forest, Yu Hai sent Dragonite to battle a roaring Teddiursa, and their Extreme Speed Dragon Claw and Hyper Beam collided.
• Yu Hai found a clearing before nightfall, released his Pokémon, and arranged dinner and their evening routine.
• Yu Hai bandaged Dragonite's injured arm and told him to rest after his battle.
• Combee returned with Toxicroak and shared her gathered honey, and the Pokémon thanked her in their own ways.

Yu Hai’s Umbreon vanished underground during a battle with a Scyther, leading Yu Hai and Lucario into a vast tomb hidden beneath the forest. The chapter ended with Lucario and Golbat searching the tomb for Umbreon.

• Yu Hai sent Umbreon to battle a Scyther, but Scyther outpaced him and drove him back with repeated attacks.
• Yu Hai ordered Umbreon to use Dig, and Umbreon disappeared underground without resurfacing.
• Lucario used his Aura to search below the hole, then widened the tunnel and went underground.
• Yu Hai followed Lucario into the hidden tomb with Golbat and realized Umbreon might be somewhere inside.
• Lucario and Golbat searched the tunnel with Aura and ultrasonic waves to find Umbreon.

Yu Hai found Umbreon unconscious after a Dream Eater attack, drove off the nearby Ghost-type Pokémon with Gengar, and identified the ruins as the Poklandis Ruins. He found the king’s chamber, but entering it trapped him inside a sealed, increasingly hot room with dangerously thin air.

• Yu Hai found Umbreon unconscious and weakened by Dream Eater, then recalled it into its Poké Ball while Lucario and Golbat guarded against attackers.
• Yu Hai had Gengar release its Elite Four aura, forcing the hidden Ghost-type Pokémon to flee, and recognized the ruins as the Poklandis Ruins.
• Yu Hai searched the ruins for the king’s chamber, avoiding suspected traps and taking a lunch break before finding a stone door with an unusual mural.
• Lucario sensed a spacious room beyond the door, and Yu Hai pushed it open, causing the revolving stone door to carry him and Gengar inside and separate him from the others.
• Yu Hai discovered sleeping Claydoll guards and a towering statue of King Poklandis, then began struggling as the sealed chamber grew hotter and its air grew thin.

Yu Hai released King Poklandis from an ancient stone Poké Ball and restrained his soul with Gengar, then tricked him into revealing that the treasure lay beneath the throne. As Yu Hai opened the throne with his Pokémon, the Claydoll in the chamber awakened behind him.

• Yu Hai had Gengar release the soul sealed inside the stone Poké Ball, and Gengar restrained the black mist that emerged.
• Yu Hai told King Poklandis that his empire had fallen, provoking the king to insist that he would still conquer the world.
• Yu Hai claimed he would help King Poklandis rule the world if the king revealed the treasure’s location.
• King Poklandis said the treasure was beneath his throne, and Yu Hai stationed Magnezone and Golurk before having Gengar open it.
• Yu Hai saw gold, jewels, and royal regalia beneath the throne, while the Claydoll behind him awakened and fixed their scarlet eyes on him.

Yu Hai and his Pokémon fought their way through the awakened Claydoll in King Poklandis’s treasure chamber, opening the door to restore the air. As the battle continued, Yu Hai collected rare Evolution Stones and discovered that three patterned glass beads were Mega Stones, with a translucent panel appearing when he touched them.

• Golurk and Magnezone warned Yu Hai that a horde of Claydoll had awakened, and Yu Hai sent Poliwrath, Swampert, Starmie, and Blastoise to hold them back.
• Golurk moved to smash the stone door, but Lucario rushed in when the door opened from outside and joined Magnezone in guarding Yu Hai.
• Poliwrath’s group battled the Claydoll while Golurk wedged the door open, allowing fresh air into the chamber.
• Yu Hai inspected the treasure vault, noticed its Evolution Stones and patterned glass beads, and teased King Poklandis about collecting stones.
• Yu Hai gathered the Advanced Evolution Stones and touched three glass beads on a scepter, crown, and sword, recognizing them as Mega Stones as a translucent panel appeared.

Yu Hai removed three Mega Stones from King Poklandis's treasury and deduced that the king had used his Pokémon to escape Ho-Oh rather than capture it. After sealing the treasury, Yu Hai left King Poklandis raging helplessly in Gengar's grasp.

• Yu Hai removed Aerodactyl's, Slowbro's, and Jolteon's Mega Stones from the crown, scepter, and sword, planning to trade them for Mega Stones he could use.
• Yu Hai concluded that King Poklandis's legends about capturing Ho-Oh were likely a cover for his escape after Ho-Oh destroyed the Pokélantis Empire.
• Yu Hai inferred that Aerodactyl, Slowbro, and Jolteon had helped King Poklandis flee and asked whether the king had hidden stronger Pokémon in the ruins.
• Yu Hai replaced the Mega Stones with pearls and gemstones, then had Gengar activate the throne mechanism to seal the treasury.
• King Poklandis erupted in furious insults and called for his warriors to kill Yu Hai.

Yu Hai treated his Pokémon after defeating the Claydoll, captured the one with decent Potential, and searched the ruins for the Mega Evolution graveyard. He collected Aerodactyl and Tyranitar remains and found Slowbro’s conch, leaving its remains unexplained.

• Yu Hai treated Poliwrath, Swampert, Starmie, and Blastoise, then captured the Claydoll with 62 Potential and put the others to sleep.
• Yu Hai followed Lucario’s Aura sensing to three unlocked stone chambers and found Aerodactyl’s remains in the first.
• Yu Hai checked Aerodactyl’s status and collected its claws, teeth, and rock materials.
• Yu Hai identified Tyranitar’s remains, found its level had been 76.11%, and had Lucario and Poliwrath pack its rock armor into a backpack despite King Poklandis’s angry protests.
• Yu Hai entered Slowbro’s chamber and found its conch on a rock platform, where its status panel showed it had been female with 78.19% Potential and level 76.21%.

Yu Hai searched the ruins for King Poklandis’s hidden Regirock but found a workshop full of Baltoy instead. There, a tiny Baltoy lit up when Lucario picked it up, and Yu Hai touched it to inspect its panel.

• Yu Hai found a Mystic Water hidden inside Slowbro’s conch and pocketed it.
• Yu Hai found no treasure in Jolteon’s chamber, then guessed that King Poklandis had hidden a Regirock in the ruins.
• Yu Hai sent Lucario and Poliwrath to search for Regirock, but their Aura led them to a Clay Doll workshop filled with Baltoy.
• Yu Hai discovered that the assembled Baltoy were unactivated while the unfinished ones registered as dead.
• Lucario picked up a tiny Baltoy, whose eyes glowed blue, and Yu Hai reached out to inspect its panel.