The 8th chaos emerald

Chapter 1: Return of old enemy's and a old couple

As the final battle was ending against the Metarex everyone was nervous. One especially was a 2 tails orange fox names Miles, but his friends prefer to call him Tails.

Cosmo was a plant/alien young girl was thinking about what to do. She knew that Sonic and Shadow were outside in space fighting Dark Oak in there super form.

Outside Sonic saw that there attacks were not affecting the planet like monster Dark Oak. They tried everything using Shadow's Chaos spear and Sonic Super spin dash. By using a combination of the two attacks the planet finally cracked open. To there surprise a gas came out and started draining everyone's energy.

Every one on the Blue Typhoon was feeling there energy being drained from them by the gas. Everyone except Cosmo who didn't seemed affected. Tails looked up and saw that Cosmo was not getting affected by the gas. At that time Cosmo knew what to do. She left the blue typhoon and with a bright light she mange to penetrate the barrier and fuses with Dark Oak weakening him. Cosmo told them to fire the sonic power cannon to destroy him now. As sonic entered the cannon soon shadow came in also. Tails couldn't do it because if he destroyed the planet she would die also. With a great moment grief Cosmo finally convinces him to shoot the cannon. As the cannon fired it was destroyed by the force and sending sonic and shadow towards the planet. When they made contact with the planet it began to show some explosions and then---

Tails woke up, it was the middle of the night and again he had that nightmare of what happen 2 months ago. He walked up and looked out side and said "man I wish I could have done something to stop her from sacrificing herself for just because I was too weak I should have been out there helping sonic and shadow ". He knew that if he was out there he would get in the way but he felt that he could have made a difference. As he was starring at the stars he noticed something falling down. It looked like a space ship. He wondered what was going to happen now. He went and got on his plain the X Tornado. He landed at the crash sight and began to see if there was an opening anywhere. As he approached the craft a door began to open and to his horror he saw that a Metarex had come out. This Metarex seems to be one of the stronger classes. He had a very thick armor that from his experience was very hard to break through. They were armed with heavy machine guns missile launchers and a blade for close range combat. Not to mention that he was the size of a sky scrapper. This didn't look to good for him. He heard that Sonic, Amy, and Knuckles came and they got the same expression.

"I though we destroyed all of the Metarex" Sonic said with a bit of fear in his voice.

"It's possible that some could have been hidden and survived but who is there leader now" responded Tails.

As the Metarex came out he said in a monotone robotic voice "Give me the 7 Chaos Emeralds with the planet egg."

Tails was thinking, "The planet egg, what would they want with those things again. If they took the planet egg the whole planet will die".

Sonic replied "there is no way I am going to let you touch the emeralds or the planet egg again".

"I am going to give u one last chance to surrender the planet egg with the 7 Chaos Emeralds or else you will be destroyed!"

Sonic was right there is no way that were going to let him have. "Amy go hide somewhere far from here". Tails told the pink hedgehog.

"Wait there is no way I am going to leave u guys here with that monster of a machine" replied Amy.

"Amy do what Tails is telling u to do go hide now!" Said sonic in a very concerned voice and gave her a serious look.

"Fine I'll go". She said and left in hurry.

"So what's the plan Tails you know more about these things than anyone one of us." Sonic asked.

"Why don't we just pound that robot into a pile of scrap metal! Yelled a red colored Echidna called Knuckles.

"For once I think Knuckles' has the best suggestion but I don't think we can handle this like this. I'll be right back will something to help us. Try to hold him off for as long as you can". Yelled Tails.

"Wait, Tails what are you planning?" Sonic called after him but he didn't respond. "oh well, Knuckles we better put our luck that he has something up his sleeves."

"Well I hope your right. Anyways let's just destroy this thing." Replied Knuckles.

Tails Sped off towards his work shop that was nearby. He got out of his plane and took 6 gems from hidden compartment in his workshop. These gems of course are the Legendary Chaos Emeralds. The 7th one was what powered his plane. He got back on his plain and went to the crash sight he saw them fighting. At least they weren't hurt to badly. He called after them "Sonic Knuckles come here quick." They came and saw all 7 Chaos Emeralds in his hand and new exactly what to do with them.

"Tails were did you get them from?" Asked Sonic

"I've been looking for them to see if I can power a new invention I was working on." He replied.

Well that's good thing but we better not loose or else he'll get the emeralds and possibly the planet egg. "I'll take it from here." Sonic said

"There is no way I am ganna let u fight that thing on your own!" Screamed tails.

"But u can..." started Sonic.

"I'M NOT GANNA LET ANOTHER ONE OF MY FRIENDS DIE BY THESE MONSTERS!" Tails yelled back at him. "Besides I've been doing some training with the emeralds. I'm not ganna loose control again." He continued

Sonic had remembered what happen when Tails used use the 7 Chaos Emeralds to go into his super form, he had so much power that he went out of control and nearly destroyed the planet. He had stopped him by a miracle. That was a long time ago. Oh well I guess that there is nothing he can do about it and let him come along. "Fine" he said.

I'll hold him back while u to get ready. Knuckles said.

Sonic and Tails started to concentrate as the 7 Emeralds began to circle around them. Then with a blinding flash of light sonic went from being blue to a golden hedgehog with brown eyes. At the same time tails turned from an orange fox to a light yellow fox with ocean blue eyes. Then surrounding Tails was 4 orbs that turned into flickies.

Sonic went dashing at such a speed that he went right through the sound barrier and manage to hit the Metarex head on knocking him down.

Tails then also dashing at him nailed him with his tails in the center chest causing some explosions to happen with the flickies also dashing at him. The Metarex was sent flying through some trees and rocks from the hits he took.

"He's not as tough as we though he was." Sonic said

"Something's not right here I'm pretty sure that's its hiding something" wonder Tails

At that moment a huge laser came out from the trees were the Metarex was sent flying through.

"TAILS WATCH OUT!" Screamed sonic

"Huh?" he wasn't paying attention and then saw sonic dash right in front of him and took the blast.

That blast was so strong that it knocked sonic from his super form and he fell unconscious on the floor.

As Tails saw his best friend fall to the floor all he could think that it was his fault everything was his fault. The fact that Cosmo died that day and now sonic was badly injured and unconscious right there.

The Metarex only started to chuckle as he saw what his beam did.

As Tails heard the Metarex laughing he could only think of one thing to do was to destroy it. All of his anger sorrow and doubt triggered something in him a great power started flowing through him. Then just liked he transformed before a bright light came and then he turned completely white. His eyes are a very dark blue.

As the Metarex can only see in his horror at what was happening to him. "What did you do to yourself? Power level greatly increasing! Chance of victory at .00001. Retreat. Retreat." The Metarex said

"You can call me hyper Tails and there is no way your leaving this planet in one piece." He said. Then Energy began appearing out of his arm that transformed in two swords. They wore both glowing with a bright fire. At the bottom of each handle you can see carving a Chaos Emerald. These swords were the legendary Chaos Swords. Hyper Tails dashed towards the retreating robot, with a quick swing of the swords a wave of energy appeared then he said "Chaos Wave!" the energy soon grew in sized and sped off towards the Metarex. As the wave hit him it began slicing right through its armor and exploded.

Knuckles that saw the whole thing can only looked in awe as he say what power Tails had.

Sonic who also woke when Tails was transforming was also as surprised to see what his best friend was capable of doing.

As Tails landed he then went back to normal the swords stop glowing. Right when he went back to normal he fell to the ground from exactions. Sonic got up and went over to Tails.

"Hey Tails you ok there?" Sonic asked in a surprised voice

"Yea I'm fine what about you?" he replied

"Yea just fine" He said

Tails was barley able to stand up and walk they went to knuckles. They began to go Sonics house to talk about what had happened. As they were walking the something was coming out of Tails' house they ran other there to see what was going on.

The last remains of Cosmo witch was a seed began to glow, and with a bright there stood an Alien/plant creature. She was a young girl with flower buds at the side of her head. Tails recognized but he couldn't believe that Cosmo was still alive. The empty hole in his life was back.

"Hey everyone" Cosmo said.

Copyright: Sonic super sonic Tails and super Tails Knuckles and Amy are all a copy right from Sega.

Copyright: Cosmo and the Metarex are all copyright from Sonic X.

Copyright: Hyper Tails is a copyright from me. In anyone wants to use him in any of there fan fics please as me first before using him.

Author notes:

I know it's kind of long but I was thinking about writing this story for the longest time but I never knew were until I found a story the Ka-Master legacy that Brent-Ka wrote, so I decided after careful thinking and planning to create this. Please no flames but also tell me of I need any improvements or if you have any suggestion for other Characters or anything please tell me. You will get all credit for your idea. Thanks a bunch and oh please review. Till next time )