Disclaimer: Pokémon is by Satoshi Tajiri

Pokémon BW: Yin-Yang Quest

Upon arrival in Castelia City, Mia, Taylor, and Brock found things very hectic. Colonies of Venipede were crowding the streets and sidewalks, and traffic was blocked due to the Bug/Poison-type Pokémon wreaking havoc.

"What…is going on here?" Mia asked in shock as she looked around. She looked up the Venipede in her Pokédex.

"Venipede, the Centipede Pokémon," the Dex explained. "It discovers what is going on around it by using the feelers on its head and tail. It is brutally aggressive."

Brock took another look around. Trainers were calling upon their Fire-type Pokémon to defeat the Venipede. "It's a bug problem, all right," Brock said. "These Venipede must've wandered into the city."

"Wait until I get my hands on him!" a voice yelled. Mia recognized the voice and turned to find a man with very dark-blue hair and brown eyes rushing past them.

"Top Breeder Jaden?" she asked in surprise. "Dad!" Mia went off after him. "Where are you going?"

The Mayor of Castelia City looked over to the door. It burst open and Mia's father rushed in. "Mayor!" Jaden demanded. "I demand you have your trainers call off their Fire Pokémon!"

"Jaden," the mayor simply said in surprise as he caught his breath.

"Dad!" Mia called out as the trio rushed in.

Upon seeing his daughter, Jaden's serious expression turned into a smile and he hugged Mia tightly. "Miiiaaa!" he cheered. "It's been too long!"

"Dad…can't…breathe…" Mia complained. He let go. "I'm happy to see you, too. So, what were you in a rush about?"

He slammed his hand on the mayor's deck, surprising him. "Ever since that Venipede colony marched in, he's allowed the trainers to let the Fire Pokémon drive them off! Burgh won't be happy about this, and neither am I!"

"May I interject?" Brock asked.

"Sure thing, Brock," Mia agreed. He stepped up to the mayor's desk.

"Mayor, from what I saw earlier, there are just too many Venipede out there for them to be driven off by force," Brock said. He showed the mayor his PokéGear, which displayed an image of the City. "I'd say from the looks of things, it'd take a few days for them to be pushed away, as they'll only get angrier."

"I was about to say the same thing," Jaden realized. "Burgh is an expert on Bug Pokémon, more so than I am!" He turned to the mayor. "So, if you please, can you leave this matter to Burgh and the four of us?" he requested.

"Please, sir," Mia began. "I feel this would be the best course of action." Brock and Taylor nodded in agreement.

"Very well," the mayor agreed. "I'm counting on you all."

"Thank you, Mayor!" Mia thanked.

"I'll go tell Burgh the news right away!" Jaden exclaimed. He rushed out the door.

"Watch out for the-!" Taylor warned.

Smash!

"Overhead light," he finished, cringing.

"Thank you, Jaden, for this news," Burgh said as he came out of the alley with a pan flute in hand. "First there is the matter of finding the leader and calming it down."

"I'm sure some trainers are still attacking it," Jaden guessed. "But where would it be…"

"Power Gem!" Mia heard Cheren command. Burgh then heard a yell of pain shortly afterward.

"Sounds like Cheren's out there!" Mia said.

"And that Venipede..." Burgh seethed as he clenched his fist. "We must hurry! I need a few people to group the Venipede together while Mia and I investigate."

"We'll take care of it," Brock assured.

"I'll stick with Brock and Jaden," Taylor told them as he enlarged a Poké Ball. "You go after Cheren, Mia."

"Okay," Mia agreed. She and Burgh went over to the pained yells.

Cheren's Boldore kept up an energy blast sent to Venipede from inside its core. Mia and Burgh arrived at the scene to find Cheren there.

"Cheren!" Mia called out.

"Stop! You're only making things worse!" Burgh instructed.

"Mia?" Cheren asked. "And Burgh?" Mia looked up Boldore on her Pokédex.

"Boldore, the Ore Pokémon," the Dex explained. "Because its energy was too great to be contained, the energy leaked and formed orange crystals."

"Burgh, leave this to me!" Cheren requested. "Boldore, one more-ah!"

Mia had taken Cheren's hand to get his attention. "No, Cheren!" she requested. "The mayor gave Burgh permission to handle this!"

"She's right," Burgh said. "Right now I need your help as well. Mia will show you what to do."

"Tranquill, you're on!" Mia called out as she threw a Poké Ball. Tranquill came out. "Gust!"

Spotting three Venipede that were out of line, Tranquill kicked up a windstorm with her wings. This blew the Venipede back to the colony.

"What are you planning?" Cheren asked. Burgh began playing the pan flute.

Upon hearing the music, Jaden got the attention of many people. "Burgh intends to lure the colony out of the area, but we need all the Venipede assembled to do so!" Jaden called out to many trainers. He took out a Poké Ball and threw it up. "Braviary!"

A Braviary came out next to him. "Flying Pokémon like Braviary should do it!" he finished. Braviary flew over to scout for Venipede.

"Woobat, use Gust! Give it your all!" Taylor ordered. Woobat kicked up a windstorm with her wings.

"Sudowoodo, use Take Down!" Brock commanded from behind them. Brock's Sudowoodo charged for three Venipede, cloaked in yellow light. It hit and shoved them in line, which crowded over to the sound of the flute.

"Just keep pushing, Woobat! You can do this!" Taylor rallied. Woobat pushed as hard as she could, managing to get six Venipede in line. "Nice!" he cheered.

A blue light covered Woobat. She grew to more bat-like proportions as her ears stuck together and the fur wrapped around its neck. When the light faded, Woobat was now a Swoobat!

"All the encouragement you gave it allowed it to evolve!" Brock noted. Taylor looked up his new Pokémon on the Pokédex.

"Swoobat, the Courting Pokémon, and the evolved form of Woobat," the Dex explained. "It emits sound waves of various frequencies from its nose including some powerful enough to destroy rocks."

"Let me see the Pokédex for a minute," Brock said. Taylor showed it to him, and he saw a new move. "Your Swoobat learned Return when it evolved. Try telling it to use that."

"Swoobat, use Return!" Taylor commanded. Heart nose glowing pink, Swoobat tackled into six more Venipede, pushing them in line.

"Use Return, Swoobat!" Taylor ordered. Swoobat hit the lead Venipede with her nose glowing pink. This calmed it down and it led the colony out of the city.

"All right!" Mia cheered.

"Thank you for your help, everyone," Burgh thanked. "The people of Castelia City can rest easy now."

"And thank you, Cheren, for not being so stubborn," Mia thanked.

"My pleasure," he said, a bit embarrassed. He then started to leave. "I'll be training elsewhere."

"Guess this is it," Mia said at the port.

"Yeah, I won't forget about Unova, though," Brock said, holding a picture of him, Mia, Taylor, and their Emolga.

"Best of luck on your studies on Pokémon medicine," Taylor wished.

"Good luck with your own travels as well," Brock bade.

He boarded the ferry. As soon as it started up, Mia and Taylor waved to Brock. He waved back to them as the ferry sailed away.

Mia nodded. 'Burgh, get ready,' she thought. 'I may be your friend, but I'm not holding back!'