Chapter 1: "Smith and Jones"

The Doctor ran down the halls. He needed to get to the MRI room, stat, before the plasmavore fried the entirety of the humans in this hospital and on the side of Earth facing the moon. He had a great plan. It was brilliant; costly, but brilliant.

A girl ran in his direction. She was pretty short with long, silky, dark brown hair, and she looked to be around 30 years of age. She was wearing light wash jeans, and a red, white, and blue flannel draped loosely around her white tank. She was also wearing a pair of bright red high tops, which the Doctor was just about to compliment her on before she stopped and interrupted his thoughts.

"I'm so, so sorry," she apologized, placing her hands on his shoulders.

"For-"

The Doctor was cut off when she abruptly crashed her lips against his. The Doctor was stunned and taken back, but the girl was quick to slip her tongue into his mouth, their lips moving in sync, before she released her grip on his shoulders and ran away.

Poe continued running as fast as she could. She felt so sorry for whoever that poor human man was, but she had to do that. She had to distract the Judoon in any way possible, but she was too distracted to run anymore... She only kissed him to buy herself some time, but dang, the kiss was good. It wasn't supposed to be good! It was supposed to be gross so Poe could move on with her life and forget about him. She wanted to go back for him, apologize again and explain, but there was no time. Besides, it would never work; he was a human, and she was not.

She checked her vortex manipulator. Still low battery. Why was she stupid enough to take the solar powered one? She needed to get close to a window.

She had some time to catch her breath. The non-human/human DNA on his lips would keep those oversized rhinos at bay for long enough.

She sat down, then checked the oxygen level. Running while oxygen was short wasn't the smartest idea.

Stomping sounded toward the end of the hall. Poe stood up quickly to see the Judoon walking towards her.

"How?" she blurted. "What about him? Didn't you scan him?" She nodded toward the man whom she snogged in the hallway.

"100% non-human," he said proudly.

She cut him a glare, then turned back to the Judoon. "Look, I'm not the person you're looking for. I only ended up here by coincidence."

"She's telling the truth," the Doctor asserted. "She may be mysterious and non-human and in a heck of a lot of trouble with me, but she's not the one you're looking for."

"Are you sure?" the Judoon asked the Doctor.

"Positive," he replied, avoiding the hard stare from whoever that girl was.

The Judoon grunted and left, leaving the two alone in the hallway.

"You're lucky I want to get rid of you myself," he muttered to the girl.

"What's wrong with me?" she asked with a laugh.

"I know what you're doing. I know you killed Mr. Stoker. What are you trying to gain?" he growled.

"I'm not sure I know what you're talking about. I didn't kill anyone," she said, putting a hand on her hip.

"You're a non-human who looks human. I know it's you who killed him."

"Oi, you're a non-human who looks human too," she pointed out.

"Yes, well, that doesn't count. You're a plasmavore! You killed him!" he exclaimed.

"Oh, honey, I'm not a plasmavore. Haven't seen one of those in ages, though," she mused.

"Well then, who are you?" he sighed.

She brought a single finger to her lips with a quick "sh".

"Look, I don't have time for your games, whoever you are. The real plasmavore's out there and it's going to fry all these people if we don't go stop it."

"We? I'm not coming with you. I've got my own problems to deal with," she huffed.

"You think your own problems are more important than the lives of half a planet?!" he blurted.

She glared at him, then turned to run to the stairwell. She needed to get on the roof; the closer to the sun, the better. Gosh, of course, whenever it ran out of power it was on a stupid planet with only one sun.

The Doctor grabbed her wrist, where there was something bulky strapped. He looked closer and recognized it as a vortex manipulator.

"You have a vortex manipulator," he said.

"Yeah? So what?" she spat.

"Where did you get that?" he asked

"Mind your own business, Mister," she hissed.

"Who are you?" he demanded.

"That's not minding your own business," she growled.

"Where you got the vortex manipulator might very well be my business," he threatened, tightening his grip on her wrist.

"Okay, so it's not mine. It is, but it isn't. Besides, the former owner has no use for it now," she spat.

"You're helping me defeat the plasmavore, then we're taking that right back where it belongs."

"No, you don't understand, I can't give it back," she pleaded.

"Why not?" he asked sternly.

"Because it was my dad's. But now he's dead." Poe complimented herself on her lie. It was almost completely true. It was her Dad's, and he was dead, but he had died long after she took it from him.

The Doctor sighed, releasing her and then running his hand through his hair. "I need your help."

She raised an eyebrow suspiciously. "Really?"

"Look, I'm about to die. It will defeat the plasmavore, but I need a favour."

"I don't give favours to strangers."

"Please, this is easy, just, here." He pressed a key into her palm. "It's the key to my ship. Set her on auto pilot to a planet of your choosing, then lock her up and leave her to die."

She slowly looked down at the key, then back to him. "That's an old key for a spaceship,"

"It's an old spaceship," he smirked.

"Whatever. That's actually just what I needed, too. Where's your ship?" she asked.

"On Earth," he answered. "After the Judoon bring everyone back down, there's an alleyway just a few blocks north from the hospital. It's blue. Says 'police box' on the outside."

"You're saying your spaceship is a police box?" she snorted.

"Oi. I think you'll find it grand."

"Whatever, Mister," she said, rolling her eyes. "If you need me, I'll be on the roof."

She slid the key into her pocket, then headed towards the stairs.

"Wait - I just trusted you with my most prized possession. The least you could do is tell me your name."

She turned back to him for a moment, waited then smiled maliciously. "They call me 'The Muse of Poetry', or 'Poe' for short. Sometimes 'The Whisper of Rhythm,' 'The Voice of Gold', and even 'The Sweet Destruction,' but those are titles, not names. Let's do this properly, shall we? My name's The Siren. What's yours?"

"The Siren... Your name is 'The Siren?'" he stuttered.

"Yes, like a mermaid. Although mostly I go by Poe because humans don't understand how 'The Siren' can be a name," she complained.

"Siren, where are you from?"

"Hey, I answered your question, now answer mine."

"There's no time."

"There's plenty of bloody time to just tell me your name!" she scoffed.

He gave her a wink then turned away, dashing back drown the hall and disappearing around a corner.

That man... If she ever saw him again...

Just what was it about him that made him so special?

A/N: Chapter One is up!

So my OC is "Poe" or "The Siren". The Siren is her name, and Poe is her nickname, short for "The Muse of Poetry" of course. Her face claim is, Valerie Anne Poxleitner, the lead singer of the band LIGHTS.

That's all I'm telling you for now.

Just know this story has been marinading in my mind for almost a month now. I've put a lot of thought into it, and I'm pretty proud of it so far.

Also it's the first re-write I've done, using transcripts and stuff so lets see how this turns out.

So far I can guarantee that it will include Martha and Donna and go through season four. Whether or not it will carry over until the eleventh doctor is yet to be determined.

Thanks for reading, I hope you enjoy!

-Kitty