I snuck into the attic, already dressed, and towards the draw in the desk. I quickly opened it and flicked through Mum's journalist ID's before finding her fake health and safety one. I stuck my photo over hers and slipped it into my pocket, grabbed my bag and walked out of the attic to bump into Luke, just got out of bed.

"Where are you going?" He asked, half asleep.

"Going out for a bit, won't be long." I kissed him on the head before walking downstairs, Luke following me.

"I thought we could do something today. Me, you, Maria and Clyde." Luke muttered as he walked into the kitchen.

"I know, I'm sorry." I called out as I opened the front door. "Soon though, I promise. Tell Mum when she wakes up I'll be home later."

"Ok." He sighed before I walked out and shut the door behind me.

...

"Sarah Jane Smith, Health and Safety." I said, flashing the security guard my ID card as I walked into the Adipose Industries building.

...

"Adipose Industries." Miss Foster began as we all sat and watched the seminar. "The 21st century way to lose weight. No exercise, no diet, no pain. Just lifelong freedom from fat. The Holy Grail of the modern age. And here it is." She held up a small white tablet. "You just take one capsule, one capsule, once a day, for three weeks. And the fat, as they say..."

"The fat just walks away."

"Excuse me, Miss Foster, if I could?" A journalist asked. "I'm Penny Carter, science correspondent for The Observer. There are a thousand diet pills on the market, a thousand con men stealing people's money. How do we know the fat isn't going straight into your bank account?"

"Oh Penny, if cynicism burnt up calories, we'd all be as thin as rakes. But if you want the science, I oblige." She turned to the screen.

"Adipose Industries. The Adipose capsule is composed of a synthesised mobilising lipase, bound to a large protein molecule. The mobilising lipase breaks up the trigycerides stored in the adipose cells, which then enter..." The computer went on and I rolled my eyes.

"100 percent legal, 100 percent effective."

"But, can I just ask, how many people have taken the pills to date?" Penny asked.

"We've already got one million customers within the Greater London area alone. But from next week, we start rolling out nationwide. The future starts here. And Britain will be thin."

...

"That's a three-week course of pills for a special price of 45 pounds." A young blonde employee said down the headset as I sat next to her and flashed her my ID.

"Sarah Jane Smith, Health and Safety. Don't mind me." I whispered as I picked up the free pendant that came with the pills and twirled it in my fingers.

"We deliver within three working days. The box comes with 21 days' worth of pills, a full information pack, and our special free gift, an Adipose Industries pendant." I frowned at it and put it down on the table before opening the box and looking at the pills. "It is made of 18 carat gold, and it's yours for free. No, we don't give away pens, sorry. No, I can't make an exception, no."

"Excuse me, everyone, if I could have your attention." All of the employee's stood up and I peered over to see Miss Foster. "On average, you're each selling forty Adipose packs per day. It's not enough. I want one hundred sales per person per day. And if not, you'll be replaced. Cos if anyone is good in trimming the fat, it's me. Now. Back to it." She turned and left.

"Thank you for your cooperation." I said before grabbing my bag and leaving quickly.

...

"And where have you been all day?" Mum's voice called down from the attic as I shut the front door and leaned against it.

"Out." I called back, pushing myself off the door. I hung my bag off the banister and started to walk up to the attic.

"You left at half 7 this morning, it's twenty to nine now!" She said as I walked into the attic to see Luke playing a game on the computer and Mum standing by Mr Smith.

"I'm 22!" I argued, walking back out and into my room with Mum following.

"So where did you go investigate?" Mum asked as she sat down on the bed next to me whilst I took my shoes off.

"Adipose Industries."

Mum frowned, "The diet pills place?"

"That's the one." I muttered.

"2 days Flo, he said. He'll be back in 2 days! Can't you just wait?"

"Oh come on Mum, it's not like it's dangerous!"

...

I walked into Adipose Industries and straight into the toilets. I sat there for over 7 hours before I heard someone come in.

"We know you're in here, so why don't you make this nice and easy and show yourself?" The voice of Miss Foster said, making me quickly pull my legs up. "I'm waiting. I warn you, I'm not a patient woman. Now, out you come." Silence. "Right. We'll do it the hard way. Get her!" The stalls started to be kicked open one by one before the eventually stopped, 3 kicks in.

"There you are." Miss Foster said, I sighed, relieved.

"I've been through the records, Foster," I heard Penny say. "And all of your results have been faked. There's something about those pills you're not telling us."

"Oh, I think I'll be conducting this interview, Penny." I heard the door open again and they left. I waited a few seconds before sneaking off after them. I ran up the stairs towards Miss Foster's office to see someone already peering in. A woman, with ginger hair, that looked awfully like...

"Donna?" I whispered. She turned round quickly at me and her jaw dropped.

"What are you doing here?" We both asked. "Investigating." We both said again.

"Am I glad to see you!" She whispered, hugging me before dragging me over to the window to look into Miss Foster's office, who now had Penny tied to a chair inside. Penny and Miss Foster argued before mine and Donna's gaze fell over to the window and we saw The Doctor and Martha.

"Donna? Flo?" The Doctor mouthed through the window.

"DOCTOR!" Donna mouthed back.

"But... what? Wha... What?!"

"OH MY GOD!"

"But... how?"

"It's me!"

"Well, I can see that!"

"Oh this is brilliant!"

"But what are you doing there?"

"I was looking for you!"

"What for?!" Martha and I smirked at each other, watching between our two companions.

"I, came here, trouble, read about it, internet, I thought, trouble = you! And this place is weird! Pills! So I hid. Back there. Crept along. Heard this lot. Looked. You! Cos they..." The three of us looked over at Miss Foster to see her staring at us.

"Are we interrupting you?" She asked.

"Run!" I said, grabbing Donna's arm and running down the stairs.

"Nothing changes!" She laughed nervously as we kept running before I ran straight into The Doctor. He picked me up and spun me around in a hug.

"Couldn't you wait 2 days?" He asked breathlessly as Martha appeared behind him.

"No." I laughed as he reached down and kissed me quickly before hugging Donna and I hugged Martha.

"Oh my God! I don't believe it! You've even got the same suit!" She pulled out of the hug. "Dont you ever change?"

"Yeah thanks Donna, not right now." He looked down at the guards coming towards us, pulled me onto his back and grabbed hold of Martha and Donna's hands. "Just like old times!"

...

"Cos I thought, how do I find the Doctor?" Donna began as we reached the roof. The Doctor dropped me down chucked me the sonic and ran off towards the window cleaning cart as I soniced the door shut before running over to them. "And then I just thought, look for trouble and then he'll turn up! So I looked everywhere, you name it - UFOs, sightings, crop circles, sea monsters. I looked, I found them all. Like that stuff about the bees disappearing, I thought, I bet he's connected. Cos the thing is, Doctor, I believe it all now. You opened my eyes. All those amazing things out there, I believe them all. Well, apart from that replica of the Titanic flying over Buckingham Palace on Christmas Day, I mean that's gotta be a hoax!"

"What d'you mean, the bees are disappearing?" The Doctor asked as he climbed into the cradle and helped me in with Martha following, took the sonic from me and quickly soniced the controls.

"I don't know. That's what it says on the internet. Well on the same site, there was all the conspiracy theories about Adipose Industries, I thought let's take a look!" She frowned at the cradle.

"In you get!"

"What in that thing?"

"Yes in that thing!"

"But if we go down in that, they'll just call us back up again."

"No no no, cos I've locked the controls with a sonic cage. I'm the only one who can control it. Not unless she's got a sonic device of her own. Which is very unlikely." He held out his hand and she took it, climbing into the cradle. I bashed my hand on the button and we started to go down.

"By the way," I began, pointing between Martha and Donna. "Donna, this is Martha."

Donna smiled, "Nice to meet you." She said, a little out of breath.

"This is Donna?" Martha laughed, looking at The Doctor. "The woman who was getting married?" Donna scowled at The Doctor.

"Yes, do we have to do all this domestic now?!" The Doctor exclaimed.

"Now you're just sounding like Jack." Martha scoffed before suddenly, the cradle started speeding downwards, sending us falling everywhere. I yanked the sonic out of The Doctor's hand and quickly soniced up at the controls. Donna, Martha and The Doctor quickly got up and The Doctor took back the sonic, sonicing the window in front of us.

"Hold on. Hold on, we can get in through the window." He said quickly. "Can't get it open!" He said as I realised Miss Foster must have deadlocked the building.

"Well smash it then!" Donna picked up a spanner and started bashing it against the window when Martha nodded up at the sky. I followed her gaze to see the cable sparkling.

"She's cutting the cable!" I shouted nervously as the cable snapped and Donna went tumbling out, hanging on by the wire.

"DONNA!" The Doctor shouted, grabbing onto Martha's arm quickly so she didn't fall out.

"Doctor!" She screamed back.

"Hold on!"

"I AM! Doctor!" The Doctor turned and pointed the sonic at the air when suddenly, a pen came flying down out of the sky and The Doctor leaned back and caught it. He quickly climbed up the cable and used the pen to open the window before pulling me and Martha in. "This is all your fault. I should've stayed at home!" We quickly bolted down the stairs and into Miss Foster's office. The Doctor ran over, and pulled open the window when me and Martha noticed Penny, tied up to a chair.

"Is anyone gonna tell me what's going on?" Penny demanded.

"What, you're a journalist?" Martha asked.

"Yes."

"Well, make it up!"

"Get off!" Donna shouted, kicking her legs as The Doctor tried to grab them.

"I've got you! I've got you. Stop kicking!" The Doctor begged, pulling her inside. She dropped down onto the floor, flushed, and straightened out her jacket before turning to me.

"I was right. It's always like this with you, innit?" She asked.

"OH YES! And off we go!" The Doctor grinned, pulling us out of the room.

...

"You're blonde." Donna pointed out as we ran into the call centre.

"Yes, I'm bloody blonde!" I said breathlessly as we suddenly ran into Miss Foster and her guards, stopping with a hault.

"Well then," Miss Foster said, taking off her glasses. "At last."

"Hello." Donna said.

"Nice to meet you, I'm the Doctor, this is Flo and Martha." The Doctor said.

"And I'm Donna."

"Partners in crime. And evidently off-worlders, judging by your sonic technology." Miss Foster said, raising a eyebrow.

"Oh yes, I've still got your sonic pen. Nice, I like it. Sleek, it's kinda sleek." The Doctor shrugged.

"Oh it's definitely sleek." I agreed. "Yeah, and if you were to sign your real name that would be...?"

"Matron Cofelia of the Five-Straighten Classabindi Nursery Fleet. Intergalactic Class." Miss Foster said.

"A wet nurse." Me, The Doctor and Martha said in unison.

"Using humans as surrogates." The Doctor said.

"I've been employed by the Adiposian First Family to foster a new generation after their breeding planet was lost." Miss Foster said.

"What do you mean lost? How do you lose a planet?" Martha asked.

"Oh, politics are none of my concern. I'm just here to take care of the children on behalf of the parents."

"What, like an outer space super-nanny?" Donna asked.

"Yes, if you like."

"So... so those little things they're, they're made out of fat yeah, but that woman, Stacy Campbell, there was nothing left of her."

"Oh, in a crisis the Adipose can convert bone and hair and internal organs. Makes them a little bit sick, poor things."

"What about poor Stacy?" Donna demanded.

"Seeding a level 5 planet is against galactic law." I said darkly.

"Are you threatening me?"

I scoffed when The Doctor squeezed my hand and interupted, "I'm trying to help you, Matron. This is your one chance; cos if you don't call this off, then I'll have to stop you."

"I hardly think you can stop bullets." The guards raised their guns and our hands shot up.

"No, hold on, hold on, hold on, hold on, one more thing, before... dying. Do you know what happens if you hold two identical sonic devices against each other?"

Miss Foster hesitated a second, "No."

"Nor me, lets find out!" He turned the screwdriver and pen against each other and pressed the buttons, sending a screaming pitch through the air.

A/n - So I decided to do this in one half sort of thing to start up the story, um, review and let me know what you thought :)