A/N Hi! This is my new fanfic. It's my first SJA story, but I've always meant to do one. I'm doing series six SJA. Enjoy my fanfic!

Sky Smith stared out the window of her room.

The was only a dark night sky with twinkling stars and a half moon shining down on earth. Her life was getting boring. There hadn't been any aliens for at least six months, Clyde and Rani were both at university now and Sarah Jane was enjoying the quiet life. Luke visited occasionally in the holidays but she didn't see much of him.

She was doing well at school; she had made a couple of new friends, Alex Matthews and Georgia Wood. Her grades were good and the teachers thought she was "A very bright girl,"

She just seemed to be leading a normal life, unlike last year which had been fun and exciting and scary too.

She wanted some action. Life couldn't be duller. She sighed and stared at the millions of twinkling stars, hoping she could see something. An alien spacecraft, a meteorite, something. No alien spacecraft's could be seen though. Not even one shooting star.

"Sky!" She heard Sarah Jane call. "Time to go to bed,"

"I'm just going into bed now!" She called back, pulling her dressing gown off. She was just away to get into bed when she saw something out of the corner of her eye. She turned round to see that there was a sort of thing that looked like a plane but she knew it wasn't. It was an alien spaceship. It was huge and circular with blazing lights all-round the edges and what looked like a beam of light shining down to on the ground.

"Sarah Jane!" She called. "Come here, there's a spaceship!"

Sarah Jane came within fifteen seconds. The spacecraft was still hovering in the air, the light beam obviously searching for something.

Sarah Jane stared at the spacecraft. "Oh no," She muttered under her breath. "Sky, we need to go up to the attic and get Mr Smith to analyse the ship."

Sky nodded and pulled her dressing gown on again, shoved her feet into her slippers and followed Sarah Jane up to the attic. They climbed the narrow stairs quickly and were soon in the door of the attic.

"Mr Smith, I need you," Sarah Jane said.

"Sarah Jane, how may I be of your service?" He asked.

"There's an alien spacecraft hovering about a mile away," She replied. "Can you see what it is doing?"

"Yes, I will analyse it right away," He said.

Lots of numbers and letters flashed on Mr Smith's screen. "I have analysed the spacecraft. It is a craft of the Kegonians of the planet Kegonia in the Pinwheel Galaxy,"

Sarah Jane looked scared. "No it can't be them…" She said.

"Be who?" Sky asked.

"They-they're the size changers…" Sarah Jane stuttered. "Why earth? Why did they come here?"

"What's so scary about them?" Sky asked.

Sarah Jane took a deep breath. "Sky, they are feared throughout the whole universe, they can change their size to any size. And I mean any size,"

"You mean they could be the size of a fly if they wanted?" Asked Sky. Sarah Jane nodded.

"Or the size of Mount Everest," Sarah Jane said.

Sky shuddered. As big as the biggest mountain on earth? She really was frightened now. Why had she wanted aliens to come? She hoped that it wasn't because she had wished that aliens had come. She wanted aliens that came in peace, not evil size-changing ones!

"Mr Smith, can you give us more information on them?" Sarah Jane asked.

"Certainly, Sarah Jane," He replied. Suddenly a sort of profile came up on his screen. "The Kegonians are a carnivorous race who eats small beings called kereats, a small dog-like creature. They like to travel and make more planets theirs by making themselves giant and crushing the inhabitants. They do anything to make a planet theirs. They every height and resemble reptilian humanoids, with long scaly tails,"

The end was here, and Sky knew it. Earth would get turned into a Kegonian planet and all the people, and animals wiped out. Sky started sobbing. Everyone would die and she knew it.

"Sky," Sarah Jane said, hugging her. "It will be okay, I promise," Sky continued to cry. She didn't want her life to end; everything had been so perfect before.

"Come on, Sky, we need to go out and stop them!"

"B-b-but we'll never beat them if they can become as big as the tallest mountain," Sky Sobbed.

"It won't hurt to try though, will it?" Sarah Jane said. "Come on, Sky, we can at least try."

Sky took a deep breath. She nodded and said: "Okay then. I suppose it won't hurt to try,"

"Come on, let's go, but first we'll need to quickly get dressed."

Sky nodded and went down the stairs, still in utter despair. Sarah Jane was right though. It won't hurt to try. She opened the door of her room and stepped inside. She pulled on a pair of jeans and a purple hoody over her pyjamas. She pulled her boots on, grabbed her jacket and ran downstairs. Sarah Jane was waiting. They both went out the front door and jumped into the car. Sarah Jane started the engine and pulled out of the driveway. They sped down the deserted street.

The spaceship was still there, looking for something. Sky still didn't know what exactly yet though.

Then there was a noise. A ringing sound like an old phone ring mixed with an ambulance siren. Sky knew where it was coming from. Above, in the spaceship. Sarah Jane stopped the car and they both got out, looking at the sky above them. The spaceship had flashing red lights on and the light beam was just about to come over their heads. The Kegonians had spotted them.

"Sky, hurry!" Sarah Jane said. "Get in the car before the light gets to us!" Sky obeyed and climbed into the passenger's seat while Sarah Jane sat down in the driver's seat. She started the engine and with a screech of the tires they sped off, well past the speed limit, fleeing from the Kegonians.

They raced through streets and alleys, closely missing houses and shops. The spaceship followed swiftly. They tore along the high street, narrowly avoiding a car that was swerving about, obviously a drunk person going home from a Saturday night at the pub. "Sarah Jane, I'm scared," Sky said.

"Sky, it will be okay, if we get them to go. Everything will be back to normal," Sarah Jane replied.

Just then they crashed into a lamppost, it hit the front of the car and made a huge dent in the bonnet. The airbags blew out, cushioning Sarah Jane and Sky as they lurched forward. The space craft was metres away. Soon the Kegonians would reach them.

"Sky, are you okay?" Sarah Jane asked worriedly.

"Yes, I'm fine," Sky replied.

"Good, now we really need to run for it!" Sarah Jane said.

They both opened the doors and quickly ran down the streets leaving the car behind. The spacecraft followed swiftly. They would never outrun a spaceship that could travel at the speed of light!

They only ran about ten metres before the spacecraft caught up with them and the light beam started making them hover above the ground.

"Uh Oh," Sky said as they started being sucked up to the spaceship. A trapdoor opened source of the beam, the belly of the spaceship. They got sucked up into the door and it shut behind them.

It was dark where they landed. They could hear the whirr of machines. Just then the lights switched on.

"Ah, Miss Smith, we've been expecting you,"