"What's going on?!" Chris gasped, sounding panicked. He raised his baggy clothes. "What's with the clothes? Did Kat and I shrink or something?"

"How did we turn into kids again?!" Kat cried as well.

"Great to see you, guys!" Tails smiled, walking up to the kids.

"Tails, it's you!" Chris gasped.

"We've really missed you two!" Cream said.

"It's about time you showed up!" Amy said, playfully shoulder bumping him. Chris smiled at her. "Hey, Amy!"

"Kat? Chris?" Penny asked. "Is it really you?"

"Penny!" Chris cried, running up and hugging the girl tight. "How are you?! Are you okay?"

"I'm fine, Chris." Penny smiled. She turned to Kat. "Kat!"

"Penny!" Kat cried, giving Penny a hug.

Cosmo watched by Sonic and Silver, a look of confusion on the plant girl's face. "Sonic, Silver, who are they?"

"They're my friends." Sonic smiled at Kat and Chris.

"Sonic..." Chris gasped happily.

"How are you doing, pal?" Sonic shot him a thumbs up. Penny walked along with Chris and Kat to face the blue hedgehog.

"Sonic..." Chris smiled. "I can't believe I'm really here! It's been a long time coming here."

"Penny and I knew you and Kat would get here sooner or later, buddy!" Sonic smiled back.

"You haven't changed a bit," Chris said, looking at the others. "In fact, none of you have. You haven't either, Penny."

"What do you mean?" Penny asked in curiosity and confusion.

"Well..." Kat said, sounding like she had no idea what to say. Kat and Chris's gaze trailed to Cosmo, Whisper, and Tangle, and the five gave each other nods and smiles.

"Doesn't look like you've changed much either. Except for the baggy clothes! Is that some new style or something?" Sonic asked.

"What?!" Chris and Kat gasped at the same time. "No, we don't...

Hearing a thump, Penny turned to see Sonic and Silver both sprawled out on the floor.

"Sonic?!" Penny gasped frightenedly. She quickly grabbed the blue hedgehog in her arms, while Whisper and Blaze hurried over to Silver.

"Why aren't they waking up?!" Penny gasped, looking like she was about to cry. Tails felt both hedgehog's heads. "They're okay. I think they're just exhausted.

''Yeah." Knuckles nodded in agreement. "I guess they still have to recover from that battle."

"What?!" Chris gasped while Kat stood there looking shocked. "Sonic and Silver both got injured in a battle?!"

...

At Vanilla's house...

"Your friends were fighting against a Metarex," Cosmo explained, eyes closed.

"Meterax?" Whisper asked in a low whisper, worry appearing on her wolf-like features.

"I don't know how many there are, but they've been attacking planets all over the galaxy." She explained. "Their goal is to unify all the planets under one absolute role."

"Let me guess..." Knuckles said. "Their role."

"That's right," Cosmo said with a nod. "They've already extinguished so many planets."

Tangle now looked worried. "What do you mean extinguished?"

"The Metarex don't just conquer planets, they take the Planet Eggs."

"WHAT?!" Knuckles nearly roared.

"Knuckles, please calm down and just listen to her!" Penny snapped. She looked over at Cosmo. "You can continue."

Cosmo smiled softly. "Thank you, Penny." She said. She took a deep breath. "Planet eggs are like the hearts of planets. Without them, planets lose their power to nurture and give life. They become just cold, solid rocks drifting through space." She looked up, her innocent face looking pained. "But now that they've taken your planet egg, your world will soon wither away, just like the others have!"

"Our planet will die?" Amy asked.

"That's right," Cosmo said, nodding firmly.

"Excuse my asking," Knuckles said. "But how do we know you're not on their side?"

"Knuckles!" Penny snapped again. Cosmo shot out of her seat, looking upset. "Because I'm not!" She cried. "The Metarex are very vicious, and they'll wipe out anything that gets in their way! I am NOT with them, you have to believe me!"

"I wish I could." Knuckles grumbled.

Cloud, who had just joined them, glared at Knuckles. "At least hear her out, Knux. No sudden accusations allowed."

Cosmo looked pained. "I came here so that what happened to me might not happen to all of you." She said, looking down. Her eyes filled with tears. "My planet is gone, everyone I loved, my family, my friends..." The poor plant-like girl covered her face in her hands and sobbed. "Everything! Everything is gone..."

Penny felt sorry for the young girl, and the human girl walked over to Cosmo and pulled the crying girl in a hug, and Cosmo grabbed on to Penny, sobbing softly.

...

Chris and Penny walked out of the room where they talked in, closing the door. Awaiting him near the staircase was Amy, Tails, Blaze, Hiro, Cloud, Tangle, and Whisper.

"She's calmed down a bit," Penny said. "I think she'll be okay."

"I can't believe Knuckles was giving that poor thing such a hard time," Amy said.

"I can feel Cosmo's pain," Whisper whispered. "I know what it's like to lose someone." Her whisps tenderly hugged her, and she hugged them back, her wolf tail twitching softly.

Tails then turned to Chris and Kat. "I can't believe you built a teleporting machine in only six months!"

"ONLY SIX MONTHS?!" Kat and Chris looked panicked. "No wonder you all look exactly as I remember you."

"Chris and Kat are acting strange," Amy whispered to Blaze. She nodded. "Don't forget that they're human."

"Hey!" Penny snapped. "I'm human, too!"

"Right." Blaze chuckled. "Sorry!"

"Back home it's been six years since Kat and I have seen you guys! I guess we still have a lot to learn about teleportation."

"If it's been six years, then how come you two still look the same?" Hiro asked. "Even you, Kat."

Kat smiled at the red wolf.

"I'm just as confused as you are!" Chris said.

Amy smiled. "I'm sure you guys will figure it out!"

Penny opened the door to Sonic and Silver's room, and to their surprise their beds were empty!

"THEY'RE GONE!" Amy cried.

"Oh, no!" Tangle yelped.

"They must've gone out the window!" Penny cried, rushing over to the window.

"He doesn't even say goodbye." Amy humphed in annoyance.

"That's Sonic for you." Tangle smiled. Penny nodded. "No matter what, they just take off. Sonic can't even stay still when he's passed out."

"I'm just glad he's okay," Penny said with a smile.

...

"Something's not right." Knuckles grumbled as he stood near the Master Emerald. "I don't trust that Cosmo."

"So, is it true, Knucky?" Rouge smirked as he flew down. Knuckles glared at her. "Is what true, Rouge?"

"A little bird told me that all seven Chaos Emeralds were gone!"

"It's true." Knuckles said, raising his eyes. "Sonic and Silver thought it'd maybe be a good idea to scatter them into space! And not only that but Chris and Kat teleported here from their world! Things are crazy here! A Metarex attacks, and then..."

"See you around, Knucky!" Rouge called as she flew off.

"HEY!" Knuckles yelled after her, raising his fist. "ROUGE! COME BACK HERE! YOU'VE GOT A LOT OF NERVE FLYING OFF WHEN I'M STILL TALKING! ROUGE!"

...

Penny stood outside with Cosmo while Cream and Cheese played.

"This is such a pretty place..." Cosmo whispered, looking around. Cream smiled at her. "I'm glad you like it! Our planet's great! Maybe you can learn to love it here!"

Cosmo smiled. "Maybe." She said. She frowned. "She doesn't understand. Without a planet egg, her planet could not survive."

So Cosmo decided to tell Cream and Penny what losing the planet egg really was. "You know, Penny, Cream if we don't get the Planet Egg back..."

"We will!" Cream's soft voice said. "We've got Sonic on our side! He'll make everything okay!"

"I agree," Penny said with a smile.

Cosmo still looked doubtful. "But guys, Sonic nor Silver aren't strong without the Chaos Emeralds."

Sonic zoomed next to Penny. "Well, then I guess we'll just have to find them!"

"Yup!" Silver said, standing next to Cosmo.

"I wish you had them now," Cosmo said.

Sonic chuckled nervously. "Maybe there was something we could've done instead of sending the Chaos Emeralds away. But it seemed like a pretty good idea at the time!"

"Yeah!" Silver said. "At least he didn't get all the Emeralds."

"You two must've been pretty whipped out after fighting that thing," Hiro said as he walked out with Tails, Amy, Chris, Kat, Whisper, and Tangle.

"We were!" Sonic said. "When we transformed into our super versions, we'd thought it would be a synch, but boy were we wrong about that!"

"Sonic, Silver, listen," Cosmo said. "The Metarex are extremely powerful. They've traveled through space and taken every egg from every planet they could find."

"There's nothing to worry about as long as Sonic and Silver are on the scene, Cosmo!" Sonic smiled. "We'll get all the Planet Eggs back! I promise!"

"A dangerous quest in outer space!" Amy smiled. "Could anything be more romantic?!"

Penny and Tangle just rolled their eyes.

"Cheese and I wouldn't miss an adventure like this!" Cream smiled.

"You can count us in Sonic!" Penny smiled.

"Kat and I wanna go too! I've been waiting for six years to have another adventure with you!"

"Great!" Sonic grinned. "Then it's settled! We're going into outer space!"

...

"Tails?" Penny asked the fox as she, Sonic, Chris, Kat, Hiro, Cloud, Tangle, Whisper, Cream, and Cheese walked down the steps of Tails' laboratory. "To go into space, won't we need a space ship?"

Tails laughed as he turned on the light switch. "Tada! It's a multi-purpose flying fortress! I call it the Blue Typhoon! And with a few quick adjustments, it could even fly into space! Only..."

"Only what?" Cloud asked.

"I was going to use the Chaos Emeralds as the power source. Now, what are we going to use?"

Penny and Cloud looked at each other, and a smile appeared on their faces. "We know!"

...

After installing the Master Emerald into the ship, Tails smiled. "The readings look good, Chris!"

"The Master Emerald oughta give us enough power to go interstellar!"

Suddenly, Knuckles zoomed right next to Cosmo, Cream, Cheese, Penny, Tangle, Kat, and Whisper. "WHAT ARE YOU DOING?!" He yelled.

Silver smirked. "We're going to borrow your Master Emerald for a little while!"

"No way! It goes back to where it was!"

"But we need it to go into outer space!" Amy explained.

"Outer space?!" Knuckles asked.

Cosmo looked at him. "We have to find the Seven Chaos Emeralds so we have enough power to defeat Metarex."

Cream smiled. "We're going to travel across the galaxy and fighting Metarexs! Doesn't that sound like the greatest adventure ever?!"

"It sounds just peachy!" Knuckles roared. "NOW GIVE BACK THE MASTER EMERALD!"

"Listen to you! You should be ashamed!" Cream cried.

"The fate of the entire galaxy is at stake!" Cosmo said.

"But if you won't listen to me..." Amy said, holding her pikow hammer. Knuckles gave a yelp. "Maybe I could knock some reason into you! It would be a pleasure!"

"Hey, let's calm down!" Knuckles panicked.

"Let's get him, girls!" Penny snapped, and all the girls surrounding Knuckles launched all they got at him.

"SONIC! SILVER! HELP ME!" He yelled.

"We'd like to, but we don't get involved in fights we can't win!" Sonic smirked.

Silver nodded "You're on your own!"

...

"This should be the last of the supplies we have to haul from home!" Amy smiled as she, Kat, Cream, Penny, Tangle, and Whisper hauled luggage and supplies to the Blue Typhoon. "Of course, now we have to haul everything into the ship."

Cream smiled. "I can hardly believe it!" She smiled.

"Hey, have you guys seen Cosmo?" Penny asked.

"Cosmo?" Kat answered. "I think she's...there she is!" Kat pointed ahead. Cosmo was there, sitting on a rock and staring out into the view.

Penny smiled, holding a bag in her hand. "Cosmo? Would you please help me carry these to the ship?"

Cosmo smiled at Penny. "Sure, Penny. I could try..." She grabbed the bag and whimpered at how... heavy the object was to her.

"Are you sure you've got it?" Penny asked with worry. "I could take it back if you want..."

"I've got it..." Cosmo grunted. Suddenly, she tripped, and she tumbled down the hill with the items in tow.

"COSMO!" Penny yelped, and ran down the hill, followed by Amy, Cream, Cheese, Kat, Tangle, and Whisper.

"Are you okay?" Penny asked. "I'm so sorry!"

"I think so..." Cosmo whimpered. "It's okay, Penny." She added. Penny helped Cosmo up and began picking up the items. She looked up suddenly, and her eyes widened with fear and she started shuttering, grabbing on to Penny's wrist.

"Cosmo?" Penny asked. The human girl looked to see what terrified the plant girl.

Another Metarex.

Hearing an explosion, the girls turned towards it.

"What's going on?" Penny asked. Whisper took a dash for it. "WHISPER!" Penny yelled.

"That's my cue, guys!" Tangle whooped, dashing after Whisper. "FINALLY, SOME EXCITEMENT!" She yelled. "THAT METAREX WOULDN'T KNOW WHAT HIT HIM! WOO HOO!"

Penny just sweatdropped a little.

Amy's communicator started beeping, and she popped it open. After a moment, Amy's mouth dropped open. "You're ready? We're leaving now?"

"Soon." Tails' voice said over the communicator. "But we have to activate the Master Emerald, so we need Knuckles! Would you mind finding him for me?"

Amy closed the lid of the watch and looked at Cosmo, Cream, Cheese, Penny, and Kat. "The time's almost here, girls!" She said. She turned to Cream. "Go find Knuckles and tell him that Tails needs some help on the ship. Cosmo, Kat, Penny, you three come with me and help carry the rest of this stuff to the ship!"

"What's going on, Amy?" Kat asked.

Amy looked serious. "Tails is almost ready to power up the new ship. And he needs Knuckles to power up the Master Emerald."

Penny, Cosmo, Cream, Cheese, and Kat gasped in shock.

...

Amy and Penny smiled as they hauled the supplies on the ship. Amy turned to Cosmo. "You know, Cosmo, you might want to carry one at a time."

"Okay." Cosmo nodded. However, the weight of the bag that was already on her back caused her to topple over, and fall.

"Or just take it easy..." Kat said nervously.

...

After the last bag was hauled onto the ship, Chris's voice appeared over the loudspeaker. "Attention, everyone! Brace yourselves!"

In response, Kat, Cream, Cosmo, Amy, and Penny sighed as they collapsed to the floor. Finally, Penny felt the movement of the ship going into space.

Amy stood up. "Let's go up to the bridge!" She smiled at the girls. She ran, followed by Cream, Cheese, Kat, and Penny. Penny smiled as she ran up to Sonic. "Hey! How did the fight go?" She asked.

"That Metarex didn't stand a chance!" Sonic smirked, giving the girl a thumbs up. The hedgehog felt his fur until he frowned.

"Sonic?" Penny asked. "What's wrong?"

The blue hedgehog looked at the object in his hand. "I wonder what this is?" He asked.

...

"I'm afraid we have bad news, sir!" Decoe told Eggman. "Sonic seems to have discovered the electronic bug!"

Eggman laughed. "I planted it on him before he woke up! Clever, aren't I? Now, fire up the engines and follow that spaceship!"

"Roger!" Bocoe said, pulling a lever. "Engines fired up!"

"Don't let them get away!" Bokkun cried, raising his fist in the air. "Full speed ahead!"

"HEY, I GIVE THE ORDERS AROUND HERE!" Eggman yelled at Bokkun.

"Sorry!"