OK, quick disclaimer. I don't own Amy, the TARDIS, any past story lines that might be mentioned, and especially not the Doctor. Great. Now that's over with, we can get on with the story.

"You spend your whole life going to spaceships and different eras on Earth!" The scottish accent rang round the TARDIS. "You promised me a planet this time!" She sounded slightly annoyed.

"Look, this SOS is very important, OK. I'll take you to a planet afterwards. I promise," a man said. He sounded slightly stressed.

"Good," she replied.

Silence fell.

"So where are we going?" she asked eagerly, jumping up and dashing over to him. The Doctor smiled. He knew she couldn't stay mad at him for long.

"Should be a space station about 3 galaxies away from here. I got a call from a old friend." He held up the psychic paper. Room 13, Floor 13, Station 13.

"Why are they all 13?" Amy asked. "Isn't 13 unlucky?"

"Only for the British. And, I mean, why? What has the number 13 ever done to you?"

"I . . . don't know," she replied. "What?"

"Nothing, that's what. All it takes is for a few people to have problems with one number, which has happened with every single number apart from the ones you haven't discovered yet, and bang! It's unlucky. More like ridiculous."

"OK, when you've finished insulting us, can you take me to a planet please."

"After."

Sighing, Amy flopped down onto a seat. For a few minutes she watched the Doctor run round the console like a mad man. Finally, she started to get bored.

"How much longer is this going to take?" she asked.

"About . . . now!" he smiled at her as he pulled down a massive lever. "And touchdown."

The TARDIS span round, throwing the Doctor away from the console.

"What the . . . " he gasped, as he leapt back up. He looked at the screen. "We haven't landed. We've stopped in the middle of space!"

"So land us," Amy said.

"I can't. We're miles from anywhere but these are the coordinates."

"So they got it wrong," Amy pointed out. "Hardly the end of the world."

"But it is. Station 13 was orbiting a planet. Neither is here."

"It's a time machine. Go back and find out what happened."

The Doctor pressed a few buttons and pulled a lever. The TARDIS set off again.

Finally, he stopped.

"Here we are," he said. "Station 13. As promised. Not incredibly important, nothing much ever happens here."

"So why was it destroyed?"

"That's what we're here to find out."

He headed towards the door, Amy following close behind. Suddenly, he span round and looked her right in the eyes.

"Now, is this going to be the time you listen to me and stay in the TARDIS safe and sound? I mean, it isn't exactly a holiday we're here for and it might not be safe. You could always stay here and wait for me to take you to that planet you want to visit."

Amy gave him a withering look and pushed past him, heading for the doors.

"Or, on the other hand, why break the habit of a lifetime and actually listen to me for once," he muttered to himself.

She opened one door, slipping out into sunlight.

"Erm, Doctor?" she called in.

"What is it, Pond?" he asked.

"I thought you said we were on a space station."

"You're point is . . ."

"Why are we on a planet?"