Hi, guys, I'm back. I like to introduce you to this Jimmy story based on one of my artworks on my DeviantArt. Remember the Jimmy and Korra crossover? This is the sequel.

Now, just sit back, relax, fast in your seat belt, and enjoy the fanfic.

WARNING: I DO NOT OWN JIMMY NEUTRON.

Two months ago, boy genius Jimmy Neutron teamed up with Avatar Korra to defeat his monstrous creation the Shadowbender. After foiling the ooze creature's plans to conquer the existence of space as a Shadow Avatar, Jimmy altered the timeline of Korra losing her connection with the past Avatars into the merging of Raava and Vaatu into Raavaatu. The universe was once again safe from evil, and Jimmy and his friends live happily ever after.

Or so he thought.

At Retrovile in a nighttime, it was quiet. Everyone in Retrovile was sound asleep. In Carl's house, the Wheezers snored loudly, in Sheen's house, he's dreaming about Ultra Lord. In the Neutron house, Hugh Neutron was dreaming about ducks.

Jimmy was getting ready to go to bed.

"Goddard, life hasn't been so great. Sometimes the times my inventions went off, but I kept saving the world. I made some new friends from other dimensions, like Timmy and Korra."

Goddard barked in agreement.

"Yeah, those were the good times, boy." Jimmy said petting Goddard. "Gonna get some sleep for tomorrow."

Jimmy hopped on his bed and Goddard lied on his bed.

"Goodnight, Goddard." Jimmy said turned off his light before he closed his eyes.

Jimmy and Goddard were sleeping nicely. Jimmy was having a dream. He was wining an award for his inventions. He builds a huge company called 'NeutronCorp' and becomes the greatest genius in the world.

Meanwhile, in a forest, there was an explosion. Green flames roaring and rising, then red and yellow eyes of five beings appeared.

"This is where the crystal is, sisters. And we must find it." the female voice of the leader said before the flame disappeared.

Later, that morning, Jimmy was brushing his teeth. He turned on a music sound and started dancing.

"Good morning, beloved Retrovile"

"I'm up to my next level"

"This is the day I can remember"

"On the 5th of September"

"My invention is going to change the world"

"With the matter of science of mine"

Goddard woke up happily. "Sing it, child."

"And it's time I follow the sign"

Goddard moved in the groove.

"It's a best day of"

Jimmy started getting dressed.

"Retrovile, where the future is nigh"

Retrovile, the apple of the eye"

"And that's where you see the blue sky"

"On Retrovile"

"Oh, yeah."

Godard barked happily at Jimmy for his morning day.

"Goddard, this is the life. I had a dream, and someday, I'm gonna make it come true." Jimmy said.

In the kitchen, Jimmy and his parents were having breakfast.

"So, Jimbo, what are you going to show the other kids on Show and Tell?" Hugh asked.

"Well, Dad, remember the dimensional effects? Well, I'm demonstrating every dimension to the school."

"Oh, that's interesting, Jimmy. You know, I really like Timmy Turner and that Korra girl. they're really good kids." Judy said.

"Jimmy, you made a lot of new friends from each universe." Hugh said proudly. "Especially one that uses elemental magic."

"Bending. It's just called bending. I don't really think I believe in magic, but bending's just cool to me." Jimmy said before he finished his breakfast. "Well, I gotta go now. Bye, Mom, bye, Dad."

Jimmy walked to the door and leaves the house.

"Bye, son." Hugh said.

Later, at school, Sheen and Carl were talking.

"Carl, do you think Jimmy's Show and Tell's gonna be really cool?" Sheen asked.

"I hope so. Maybe it's a llama." Carl said foolishly.

"Oh, for Go… It wouldn't be a llama, Carl. It's gotta be a robot version of Ultra Lord." Sheen said.

"Don't be stupid, Sheen. Jimmy sure invents something I'm hoped to be."

"Is it something about llamas?" Sheen asked sarcastically.

"No!" Carl argued, yet honestly. "Maybe."

Jimmy walked to his best friends. "Hey, guys."

"Hey Jimmy, we were just talking about you." Carl said.

"We were wondering about what cool stuff you're gonna demonstrate on Show and Tell." Sheen said.

"Oh, you'll see." Jimmy said.

Later, in Miss Fowl's classroom, the class was all gathered and ready for Show and Tell. Sheen showed his new Ultra Lord action figure, Carl showed his new llama doll, Libby showed her new dance moves, and Cindy demonstrated the facts that women are 'smarter' than men.

Jimmy was starting his Show and Tell. He picked up his Hypercube and a remote was shown.

"In case you might know already or not, this is my dimensional remote. From the Universe Portal Machine, it takes me to any dimension I want to go. The known dimensions I've been to are Dimsdale and Avatar."

Jimmy pressed the button and a portal that leads to Timmy Turner's dimension. Timmy, Wanda, Cosmo and Poof saw Jimmy and waved.

Cindy waved to Timmy. "Hi, Timmy." she said.

The next dimension was the Avatar World. Korra, Asami, Mako and Bolin waved to Jimmy.

"Long time no see, Avatar. Say hello to the class here." Jimmy said.

"Hey, kids." Korra said.

"Hi, Korra." Sheen said.

"Hi, Sheen." Bolin said. "How's it going?"

"Good, you?" Sheen asked.

"Police life." Bolin said.

"Jimmy, your new friends are really extremely." Miss Fowl said.

"Thanks, Miss Fowl." Korra said before she saw something. "Oof, duty calls. Nice to meet you all."

"Nice for them to meet you, too, Korra. Bye." Jimmy said before he turned off the portal.

"Jimmy, it's a pleasure to meet your friends. Whenever did you meet Timmy Turner and Avatar Korra?" Miss Fowl asked.

"He 'magically' appeared in my lab." Jimmy answered.

"And he created an oozy clone of Korra's evil uncle who tried to take over the world." Cindy said, reminding Jimmy of the Shadowbender.

Jimmy remembered, but he didn't Cindy to rub it in. She always riveled him all the time.

"Okay, that's my Show and Tell. Thank you very much." he said before he sits back down.

"Thank you, Jimmy." Miss Fowl said.

"Jimmy, in Timmy's world, he's got real fairies." Carl said.

"Just holograms, Carl. There's no such thing as magic." Jimmy said.

Miss Fowl makes an announcement. "Now, class, we're invited to the Retroville Museum today. They say they have something new there."

Later, in the Retroville Museum, the class were exploring and seeing the historical objects. Then the curator was making an announcement.

"Now, children, moving on to antiquity. I have procured a very unusual crystal on loan from a private donor."

The curator removed the cover and revealed a green crystal like no other. The students were surprised at this crystal except Jimmy who was confused.

"There. Now, isn't that bizarre?" he asked.

"At least. What kind of a crystal is that?" Jimmy asked.

"I'm not sure. I think it's some kind of a cluster quartz, but I haven't been able to identify it in any of my books." the curator said. "My donor said it came from another world, and it's got magic."

"Oooh." the students were amused.

"Magic. Who would believe such thing exist?" Jimmy asked in doubt.

"I think it's pretty." Carl said before closing his eyes. "I wish I have pet llamas. I wish I have pet llamas. I wish I have pet llamas."

"Carl, what are you doing?" Jimmy asked.

"Checking if what its magic can do." Carl said.

"Carl, there's no such thing as magic." Jimmy said.

"Well, it's because you don't believe." Carl argued.

"I do believe, in science. There's no proof that magic exists." Jimmy said. "Only an idiot can make that up."

"You did when you made that thing that got us in a dimensional world, Nerdtron." Cindy scowled.

"That's not magic." Jimmy said.

"It was when you nearly got us killed there." Cindy said.

"Now, children, let's not argue about this. I'm sure it's just a rumour. Now, let's move to the cavemen section." the curator said before he and the students goes to the cavemen hall.

Later, out of the museum, Jimmy and his pals were talking.

"I can't believe you guys would believe in that nonsense." Jimmy said.

"Why not? It looks awesome." Sheen said. "Ultra Lord would have use that to defeat his enemies."

"I like it, Jimmy. You should give it a chance." Carl suggested.

"Give it a chance. I always give science a chance to proof the facts." Jimmy said before Cindy and Libby walked to them.

"Oh, so Mr. Blowout who don't believe in magic thinks he's so high and mighty because he's a science boy." Cindy mocked.

"You're just jealous, Vortex." Jimmy said.

"Me? If you think that crystal's not magic, why don't you test it tonight? I dare you." Cindy said.

"Unless you're scared." Libby said before she and Cindy laughed and left. "Can't wait to see that."

"Don't listen to them, Jimmy." Carl said. "You're not scared."

"Yeah, you've been brave all the time." Sheen said. "Remember the last time you travelled through time to stop Shadowbender?"

"She wants proof? I'll show her proof. Gentlemen, we're gonna analyse that crystal tonight." Jimmy determined.

Sheen looked excited and Carl looked shocked and scared.

"You've got to be joking." Carl said. "Again?"

Unknown to them, eyes appeared from the shadows, watching its target.

Jimmy's gonna break into the museum again. What's gonna happen?

Chapter two will be coming.