They walked out of the room after Rita forced the Doctor to tidy up after the mess he had made with the computer. Martha then bumped into them panting breathing loudly with panic on her face.

"I've restored the back-up." The Doctor told her.

"I found her." She breathed.

"You did what?" He asked. The Doctor then saw the slab behind her and widened his eyes. "Run!" He shouted grabbing Rita's hand as well as Martha and pulling them down the hospital corridor. They then sprinted down a set of stairs and turned left and ran. The Doctor and Rita skidded to a halt seeing the Judoon climbing the stairs they were about to head down. The Doctor pulled on the brunette and diverted onto another floor after seeing another set of stairs.

They continued running down the corridor the Doctor then pushed them down another corridor and then into a room. The Doctor sprinted to the x-ray machine. While Martha ran behind the radiation screen. Rita shut the door and locked it with her sonic.

"When I say now, press the button." The doctor ordered Martha as Rita looked through the window in the door to see where the slab was.

"But I don't know which one!" Martha frantically looked at all the buttons

"Then find out!" He shouted at her while messing with the x-ray machine. "Stone can you see it?" He asked her.

"Not yet" she replied then noticed him running and pulled down the blind. "It's here now!" She said loudly running to stand beside the Doctor.

There was a loud banging on the door, no doubt it was the slab trying to get in.

"I don't know which one!" Martha shouted. Rita ran in and behind the radiation screen just before the slab jabbed its arm into the door causing the last of the hinges to come off and the door to fall to the floor.

"Now!" The Doctor shouted. Rita slammed her hand down on a yellow button and radiation filled the room. The slab fell to the floor after having a massive dose of radiation.

"What did you do?" Martha asked.

"He killed it, increased the radiation by five thousand percent." She then whistled "That's a lot. Have fun expelling that" She teased.

"But isn't that going to kill him?" Martha looked at in concern.

"Nah, it's only roentgen radiation." The Doctor waved it off shrugging. "We used to play with roentgen bricks in the nursery."

"You mean you did" Rita laughed. "I remember my childhood. Partly" She shrugged. "Remember enough to know that my parents only cared about one thing and that was how clever I was, prophecy or not with the pepper pots. My parents wanted their daughter to be the best and thought me playing around was wasting theirs and my time."

"You remember all of that?" The Doctor looked at her.

"Of course I do, it's slowly coming back unlike the parallel world 'episode' memories but it is coming back to me. Anyways enough about my boring childhood, you were explaining something Doctor."

"Oh yes," he nodded "It's safe for you to come out." He nodded at Martha. "I've absorbed it all. All I need to do is expel it." Rita stepped out and bit her bottom lip forcing herself not to laugh at the Doctor jumping up and down in the spot. "If I concentrate I can shake the radiation out of my body and into one spot." He gritted his teeth groaning and scrunching his face up in pain. "It's in my left shoe. Here we go, here we go. Easy does it." he then started to hop on the spot kicking his shoe, Rita could not longer help herself by laughing her head off. "Out, out, out, out, out. Out, out." He then shouted in pain. "Ah, ah, ah, ah! It is, it is, it is, it is, it is hot. Hold on." He then ripped off his shoe opening the bin and throwing it in. "Done."

"Better?" Rita raised a brow.

"Much thank.s"

"You're completely mad." Martha gawked then looked at the Stone, stepping out from behind the glass. "The both of you."

"You're right. I look daft with one shoe." Rita rolled her eyes at him. The Doctor just as she guessed he would pull the other shoe off and threw it in the bin to join the other. "Barefoot on the moon." He wiggled his toes smirking.

"Maybe my parents were right" Rita scoffed. "Maybe if you have an ego bigger than the size of your head you do become a mad idiot" The Doctor glared at her then blinked.

"Did they really say that?"

"Of course they didn't." She snorted. "I made it up, proves that you are an idiot, though." She grinned at him.

Martha then interrupted the conversation by staring at the slab. "So what is that thing? And where's it from, the planet Zovirax?"

"That Martha is just a slab that's what they're called." Rita walked over and knelt beside it. The Doctor knelt beside her and poked the slab to prove it.

"See? Solid leather, all the way through." he then stood up. "Someone has got one hell of a fetish."

"And that is not an image I wanted in my mind, thank you, Doctor." Rita groaned pinching the bridge of her nose, slightly shivering at the horrid thought. She opened her eyes from her disgusted moment and noticed the Doctor staring at his sonic screwdriver which was completely broken and fried in his hand.

"But it was that woman, Miss Finnegan. It was working for her, just like a servant." Martha tried to explain but both Time Lords were ignoring her too busy in their own conversation.

"Being almost 900 years old I am not going to be a child and rub in your face that I used new my sonic and laugh at you with your completely fried one." She snorted a laugh. "Oh, wait I just did." She grinned.

"My sonic screwdriver." he mumbled.

"There there Doctor, I'm sure the TARDIS will give you another one later, for now, you can save us using a kettle and some string" She laughed at the reference she had made remembering the quote from a future event but not being able to remember which one.

"She was one of the patients, but-" Martha began but was interrupted but the Doctor again.

"Oh, no. My sonic screwdriver."

"You are not using mine, I'm not having you break it," Rita told him pointing her finger at him. "But if you really need to, of course, you can." she smiled.

"She had a straw like some kind of vampire..."

"I loved my sonic screwdriver." The Doctor muttered showing it to Rita.

"Yes Doctor I know that you loved your sonic screwdriver." She patted his shoulder in sympathy.

"Stone? Doctor?"

"Sorry." They both muttered turning to Martha, the Doctor throwing the fried sonic over his shoulder. "You called me Doctor." He beamed.

"She called me Stone" Rita then grinned crossing her arms. "I guess we have proved ourselves." Rita then snorted. "Oh god that sounds like some kind of top secret spy thing"

"Anyway..." Martha looked at the Time Lady strangely. "Miss Finnegan is the alien. She was drinking Mister Stoker's blood."

"Funny time to take a snack." The Doctor frowned

"Hmm it is, you would think that she would be hiding. Wait" Rita held her finger up in the air.

"Unless..." The Doctor thought. "No. Yes, that's it." Rita nodded understanding as well.

"Shape-changer. Internal shape-changer!" Both the Time Lords exclaimed.

"She wasn't drinking blood, she was assimilating it." The Doctor explained.

"Using it to appear human!" Rita said loudly. "But if she can do that..."

"Then the Judoon won't find her!" The Doctor finished.

"The one time I wish they wasn't so thick" She groaned.

"We've got to find her and show the Judoon. Come on!" The Doctor shouted taking Rita's hand and running. Rita then pulled the Doctor back hearing footsteps of a slab.

"There's a slab" She informed him and he nodded crouching down next to the wall beside her. They watched the slab go past the corridor not noticing them.

"That's the thing about Slabs. They always travel in pairs." The Doctor whispered thinking aloud.

"What about you two?"

"What about us what?" The Doctor looked at Martha.

"Haven't you two got back-up?" She asked. "Or is The Stone your only..." The Doctor frowned glancing at Rita then back at Martha.

"Uh no." Rita shook her head. "Not partners because that word just makes me think of really, really cheesy TV shows."

"Oh. Humans." The Doctor rolled his eyes. "We're stuck on the moon running out of air with Judoon and a bloodsucking criminal, you're asking personal questions? Come on." He stood up with Rita and they turned the corner.

"I like that," Martha muttered. "Humans. I'm still not convinced you're aliens." Martha turned the corner and followed them. Two of the Juddon turned a corner and faced the Doctor and Rita.

"Non-humans." They stated.

"Brilliant. Just what we needed" Rita groaned.

"Oh my God, you two really are." Martha gasped.

"And again." The Doctor took Martha's hand with the free one not holding on to Rita's They sprinted down the corridor and turn the corner just as the Judoon fired their weapons at them almost turning them into carbon.

They ran up a set of stairs before turning to a room hearing the Judoon behind. Rita sees a door and pulls the Doctor to follow her in. Running in the room she let go of his hand as him and Martha ran in. She then closed the door shut and used her sonic to lock it.

"Who hasn't got a sonic now" she grinned.

"Me" he rolled his eyes at her.

"Not the time." Martha told them, they both muttered 'right' to her and headed down the corridor they had just entered seeing people sliding down the walls gasping for air.

"They've done this floor. Come on. The Judoon are logical and just a little bit thick. They won't go back to check a floor they've checked already. If we're lucky." The Doctor and Rita then started to walk off. Rita then stopped pulling the Doctor to a stop as well. She let go of his hand and knelt down beside Martha who was talking to her friend.

"How much oxygen is there?" Martha asked sadly.

"Not enough for all these people. We're going to run out."

"How are you feeling? Are you all right?" The Doctor asked Martha.

"I'm running on adrenaline." Martha smiled at them.

"Welcome to our world." The Doctor glanced at Rita. "How are you?"

"Respiratory bypass system seems to be working," She hummed. "I'm not the one you should be worrying about though. These people are already showing signs of oxygen starvation." She said looking over at Martha's friend and the person she was giving oxygen too. "If they are like this then there will no doubt others this bad, possibly even worse."

"What about the Judoon?"

"Nah, great big lung reserves. It won't slow them down."

"Martha where's Mister Stoker's office?" Rita asked. She gave her friend a pat on her arm then stood up taking the lead. "It's this way."

The Doctor held out his hand signaling that he was to go first. He walked into the office with Rita just behind and Martha after her. Moving out the way Martha past them both and groaned slightly. "She's gone. She was here." The woman then gasped seeing Mister Stokers body lying on the floor extremely white.

"Drained him dry."

"She took every last drop of his blood. He didn't even do anything wrong" Rita sadly sighed.

"We were right. She's a plasmavore." The Doctor looked at Rita.

"What's she doing on Earth?"

"Hiding. On the run. Like Ronald Biggs in Rio de Janeiro. What's she doing now? She's still not safe. The Judoon could execute us all. Come on." He then went to leave but Rita pulled him back, he gave her a questioning look but soon understood when Rita sadly looked at Martha who closed the mans eyes then stoop up walking over to the Time Lords.

After leaving the office the Doctor began to think aloud. "Think, think, think. If I was a plasmavore surrounded by police, what would I do?"

"Doctor" Rita pointed at the 'MRI' sign on the opposite side of the wall.

"Ah. She's as clever as you." Rita rolled her eyes at him. "Almost." He added.

"I wish you would stop doing that Doctor."

There was a crash at the other end of the corridor and the Judoon were marching up to them.

"And my day just gets better and better" Rita groaned. The Doctor sighed then turned to Martha

"Martha, stay here. We need time. You've got to hold them up." He told her repeatedly glancing at the Time Lady beside him.

"How do I do that?" She asked.

"Just forgive me for this." He switched his gaze from Martha to Rita and then back as if he was apologising to them both for some reason. "It could save a thousand lives. It means nothing. Honestly, nothing." He's eyes flickered over to Rita again who had not noticed. The Time Lords eyes were fixed on watching hers as he grabbed Martha's face and kissed her hard yet quickly before letting her go grabbing Rita's hand and running off heading for MRI.

"That was nothing?" Martha breathed out stunned smiling to herself.

"Oh, you just can't help yourself can you Doctor" Rita rolled her eyes after hearing Martha's words as she ran off.

"You know what that was for" he almost snapped at her.

"You know I tease" she grinned then laughed at how angry he actually looked at the current moment. "I didn't mean to anger you though." She muttered feeling slightly guilty.

"I'm not angry, honestly," he told her as they got closer to the MRI ward. The Doctor then began to speak to Rita telepathically not wanting the plasmavore to hear him. "As soon as we get in there look-"

"Doctor I know what to do" Rita rolled her eyes at him. "Act like I am a human about to completely lose it and break down thinking that I am going to die and never see my children again"

"Where did that come from?" He asked sounding slightly shocked at how detailed that actually was.

"That's not something I want to discuss" Rita shut down not answering. The Doctor pushed the thought to the back of his mind. They then entered the MRI room breathing heavily noticing that an MRI machine was definitely way over powered with bolts of electricity coming out of the machine.

The Doctor placed his hand on Rita's waist pulling her closer to him. Her eyes grew wide honestly not expecting him to do that.

"Have you seen them? There are these things." The Doctor said sounding shocked and scared as he pointed to the door with his free hand. "These great big space rhino things. I mean, rhinos from space. And we're on the moon!" He then shouted and plasmavore now turned around knowing that he wasn't going to shut up.

"Great big space rhinos with guns on the moon. And I only came in for my bunions, look." He stuck his foot out and wiggled his toes. "I mean, all fixed now. Perfectly good treatment. The nurses were lovely. I said to my wife," he nodded to Rita. "I said I'd recommend this place to anyone, but then we end up on the moon. She's scared to death. Won't leave my side at all" Rita looked at the woman with the best-terrified face she had. Thinking back to those awful memories even she tried to force herself to forget, almost did forget. A tear escaped her eye, she felt like she sort of blanked out but didn't. The Doctor honestly looked at her worried. He tightened his grip on her trying to let her know that he was there and she was safe. "She can't take it anymore," the Doctor told the plasmavore. "All she wants is to go home. It's okay." He gently wipes the tear from her cheek with his free hand not actually acting at all before he glanced back at the woman. "Also did I mention the rhinos?"

"Hold him." The slab grabbed the Doctors shoulders. Widening her eyes the Stone realised where she was and what was going on after zoning out. She suddenly escaped the Doctors grasp and went to run out of the door to try and get Martha and the Judoon. The slab swiftly let go of the Doctor turned, grabbed Rita and pushed her to the ground then turned back to the Doctor firmly holding him again and tightened its grasp on him. The Doctor heard Rita whimper in pain beside him. Her head hit the floor pretty badly and could clearly see that her vision was not good with the way her eyes were jumping around. He clenched his hands into fists trying not to show the pain and anger inside of him.

"Er, that, that big er machine thing." The Doctor nodded over at the MRI scan machine. "Is it supposed to be making that noise?"

"You wouldn't understand."

"But isn't that a magnetic resonance imaging thing?" He tried to act like he had no idea what it did. "Like a ginormous sort of a magnet?" He looked at the woman who started to mess with the machine. "I did magnetics GCSE." He then added. "Well, I failed, but all the same."

"The magnetic setting now increased to fifty thousand Tesla." She informed him smiling.

"Ooo, that's a bit strong, isn't it?"

"It'll send out a magnetic pulse that'll fry the brain stems of every living thing within two hundred and fifty thousand miles. Except for me, safe in this room." She gestured to where she was standing.

"But er, hold on, hold on, I did geography GCSE. I passed that one. Sadly the wife didn't" he glanced down at Rita and saw her eyes closed and her body gently moving up and down signalling that she was breathing. The Doctor then looked back up. "Doesn't that distance include the Earth?"

"Only the side facing the moon. The other half will survive. Call it my little gift." She smiled devilishly.

"I'm sorry, you'll have to excuse me, I'm a little out of my depth. I've spent the past fifteen years working as a postman. Hence the bunions." He wiggles his toes and looked down.
"Why would you do that?"

"With everyone dead, the Judoon ships will be mine, to make my escape."

"No," he gasped acting surprised. "That's weird. You're talking like you're some sort of an alien."

"Quite so." She said quietly.

"No!" He gasped again.

"Oh, yes."

"You're joshing me." He looked at her with his eyes widened.

"I am not."

"I'm talking to an alien? In hospital?" He then looked around the room. "What, has the place got an ET department?" He joked.

"It's the perfect hiding place. Blood banks downstairs for a midnight feast, and all this equipment ready to arm myself with should the police come looking."

"So, those rhinos, they're looking for you?" He asked.

"Yes. But I'm hidden." She showed him her wrist grinning smugly.

"Right." The Doctor nodded his eyes widening. "Maybe that's why they're increasing their scans."

The plasmavore then looked up a little shocked. "They're doing what?" She asked a little concerned.

"Big chief rhino boy, he said, no sign of a non-human, we must increase our scans up to setting two?" He questioned.

"Then I must assimilate again." She muttered and started rummaging in her bag.

"What does that mean?" The Doctor asked.

"I must appear to be human."

"Well, you're welcome to come home with me and the wife. We can have cake." He smiled.

"Why should I have cake?" She then found what she was looking for in her bag and brought out a straw "I've got my little straw."

"Oh, that's nice. Milkshake?" He asked. "I like banana."

"You're quite the funny man. And yet, I think, laughing on purpose at the darkness. I think it's time you found some peace just like your wife who will join you soon." The Doctor widened his eyes and glanced down to see Rita's breathing had definitely gotten shallower. The knock to her head as well as the lack of oxygen did not help the situation. "Steady him!" The plamavore ordered before the Doctor could start to thrash around to try and help the Stone in any way he could.

The slab pushed the Doctor to his kneels and violently moved his head so his neck was clear. "What are you doing?" He asked looking at her with widened eyes as she started to stroke his neck trying to find a vein.

"I'm afraid this is going to hurt. But if it's any consolation, the dead don't tend to remember." She then stuck the straw into his neck and vein then began to remove the blood from his body.