Sorry! Sorryy! I was quite sick in the weekend so I couldn't really write anything.

Thank you everyone for your amazing reviews! The reactions to the message were priceless :')

I might be doing something like that again, haha who knows?

Hope you enjoy this chapter! :D

There was a round, golden analogue timer. Six days and thirteen hours, the hands inched around anti-clockwise. He looked at in horror and sadness. That was how much time he had with his impossible girl before he had to make the impossible choice. He had to look at it on the bright side – it was more than three days. He chained the end onto his waistcoat with care and placed the timer inside his pocket. He approached the infirmary room with his scanners and leaned on the door.

He closed his eyes. Inside, she was there and she knew nothing about what was really happening… and what had just happened.

Ignorance is bliss.

The innocence and untainted soul of a young, caring, compassionate English teacher from Blackpool, eager to travel.

Paradox is evil. Paradox always poisoned and consumed everyone involved in it. He knew. He knew this paradox would smash her soul. Destroy her innocence, wake her up from the safe fantasy. He could never tell her.

The Doctor took a deep breath and opened the door. The petite figure of Clara sat on the bed. She gave a brilliant smile as he entered.

"You took your time." She teased.

"Sorry. Got off track." He placed the scanner, which looked like a small bracelet, on Clara's small wrist.

"What's this?" Clara asked, looking closely at the silver bracelet.

"A medical watch." He took out a small monitor from his pocket. "It will send signals to this receptor. Just in case you kidney wants to give up on you anytime soon." He scanned her from top to bottom again. "Also fixes internal injuries like kidney failures… and it doubles as a watch. Very convenient."

It was actually a life support machine, but he didn't say anything about that. He would do anything to keep her safe and happy. And that included lying, even though it broke his hearts lying to his best friend.

"So, am I okay then?"

"Your kidneys are fine now. All healthy and functional." He said, assessing the life support machine. This extended her life for three more days. That was still too short. He had to figure out a permanent solution soon.

"But in my dream… I was… I…" Clara paused. She couldn't remember the dream anymore. What was in it again?

The Doctor looked at her, concerned. He was sure that the TARDIS extracted any memories about 'the dream' out of Clara's memories. "Do you remember anything from your dream?" He prayed that she wouldn't.

"Well, no. Not really. It's very fuzzy." Clara said, focusing hard to remember what had happened. A snapshot of her mother's face flashed past her mind. "I'm pretty sure it wasn't anything important." She gave him a dry smile.

The Doctor silently sighed out of relief. Good, she was forgetting the dream already.

"But yeah, thank you for fixing my kidneys." She laughed as she jumped off the bed. "It doesn't hurt anymore. It's great!" She unexpectedly pounced on the Doctor, and he flinched at her hug.

"I told you! I'm against hugging!"

"You don't get a say." Clara giggled. Hang on, what was the round thing in his pocket? Clara sneakily unchained it and placed it in her pockets.

"Anyway, it's a Wednesday. Time for us to travel. I was waiting for you this morning, but you didn't come. And all this ordeal about kidneys got in the way."

"Before all that, I was thinking if we could have someone else in the TARDIS with us?"

Clara raised her eyebrow. "Who?"

"Kate Stewart. You've met before, remember?"

"Oh! Her. Why her all of a sudden?" Clara questioned.

"…. Just because." He said as he landed in the tower of London. He knew that just because he averted Clara's death didn't mean everything else had not happened. Time was in flux, and the events before might already have become a fixed point in time. He hoped they weren't, but just in case, he had to keep Kate in the TARDIS as well.

As he opened the door, he found himself at gunpoint by numerous UNIT soldiers.

"Stop! I told you it's the Doctor. No guns I said!" Kate emerged from the soldiers, scolding them. "Sorry about this. They are ever so excited to see you." She turned around to face the soldiers. "Dismissed."

The Soldiers saluted and marched off.

"Hello, Doctor… and Clara. Nice to see you both. What seems to be the trouble?"

"I need you to come with me." The Doctor said. Kate looked at Clara in confusion. Clara mouthed 'I don't know' and gave her a shrug.

"I'm sorry?" Kate laughed in disbelief. "Doctor, I am UNIT's scientific advisor. I can't just abandon work to travel with you.

The Doctor regretted his choice of words. Of course it didn't work, it was Brigadier Lethbridge-Stewart's daughter. The traits of the Brig flowed in her blood.

"…Besides, we've been on yellow alert. I can't just leave them. What if something happens while I'm away?" Kate added as an afterthought.

"Yellow alert?" The Doctor asked in confusion. "What yellow alert?"

"Well, some kind of alien form has been trying to hack into our systems. There was a five minute blackout just a few weeks ago where they accessed our top secret information."

"And may I ask what this top secret information was?"

"About you, Doctor. Everything we had about you and the companions who had travelled with you over the years."

"How do you know it's an alien form?"

"Because they are running the same hacking system my dad found in his time. But that time, he was confronted by one himself. He managed to take it down, but it unfortunately escaped while in captivity." She showed him a file of the incident. "Any idea what this might have been?"

"No… no idea." It was the Navdroids. He could even recognise it from the terribly pixelated picture in the file. Why were they suddenly causing so much trouble?

Suddenly, a red alarm blared out. "But I have a feeling they are coming back for more." He said as he turned to Clara. "Clara, go back to the TARDIS." He knew what could happen if Clara was confronted by the Navdroids again.

"No. I'm going to stay…" Clara tried to argue.

"Back. TARDIS. Now. No arguments." He was very serious. He couldn't risk her again. Not like how it had affected him in his alternate timeline. He couldn't bear losing her.

Clara angrily growled. "You're an idiot." She stormed inside the TARDIS and slammed the door. How could he do that? How dare he? Why was she following his orders? She angrily went into her room and laid on the bed.

oOoOoOoOoOoOOo

"Kate, I need you go into the TARDIS as well." His voice deeply resounded, almost like a growl.

Kate looked at him in annoyance. She had been frowning at the tone he had used with Clara.

"Doctor, I am not your minion, and I certainly don't respond to your commands, this is my base. I have to see what happened. I am not going to be bossed around by a simple old man." She retorted. Something on her belt started beeping. "Excuse me. I think my team needs me." She started jogging. The Doctor followed.

"Kate, you're making a mistake." His tone was much softer now. He had to save Kate.

They abruptly stopped when they were confronted with four Navdroids. They weren't the peaceful kinds anymore; they had infiltrated the UNIT Base and was destroying everything on sight. He froze in shock. What had happened to the future he'd seen? The Navdroid's quest to save the Polinians from the deadly toxin?

Unlike the Doctor, who was frozen in place, Kate picked up a gun from nearby and aimed it at one of them.

"Kate, you can't do anything. We have to go back…" He saw a little canister rolling in front of his feet. His eyes widened. That was a flash grenade. His Time Lord instincts kicked in as he kicked it as far away as possible. He tackled Kate down to the floor and protected her eyes and ears.

FLASH

Everything was ringing. He sat there, stunned.

"Doctor! We have to get out of there. Come on!" It was almost like an echo. There was a muted sound of a gun fire somewhere distant. He was sure that didn't sound like Navdroids. Everything was so white. So blank. What was he doing there? Where was he?

Two arms grabbed his shoulders and he was dragged towards something. His hearings gradually came back to normal. He heard soldiers shouting commands, bullet fires and grenades going off. He sharply sat up. He was behind a makeshift barricade. The soldiers behind them were shooting at the incoming aliens.

"Kate!" He screamed.

"Doctor, stay there!" She was behind a barricade as well. He saw her getting hit on the face by something.

"KATE!" He tried to join her, but the bullets flying past the barricade stopped him from doing so.

"I'm okay." She said, wiping droplets of blood from her face. "Just… stay there!" She yelled.

What the hell was happening? Why were they under attack? The Doctor blinked again. Through the reflection of the polished floor, he caught sight of the 'aliens'. They weren't the Navdroids at all. Suddenly, a massive explosion followed by the shockwave blew him to the nearest wall. The blackness consumed him.

The next time he was conscious, he saw the blackened face of Kate.

"Are you okay?" The Doctor asked as he abruptly sat up. He gently touched the bleeding cut on Kate's cheeks.

"I should be the one asking you that." She gave a weak chuckle.

"They are not aliens." The Doctor said.

"Yeah, I figured. They were us. Definitely humans from the future. But… why?"

"I don't know." He said, deep in thought. 'Why indeed.' Suddenly, something registered in his mind. Clara was still in the TARDIS.

"Clara!" He ran into the TARDIS and slammed the door.

OoOoOoOoOoOOo

Clara's room

Clara felt the TARDIS shake.

"Doctor?" She yelled. No response. She walked into the console room. Still no one.

She was still furious with the Doctor. She was going to teach him a lesson about how he talks to her. How dare he boss her around like that? He was her hobby. She was not going to put up with that kind of behaviour, no matter what the circumstance was.

She looked around again, sighed and sat on the chair. She felt for her pocket and slowly took out the round golden… thing.

"What are you?" Clara whispered to the watch. "I've never seen you with the Doctor before." She assessed every inch of it. Gallifreyan symbols? She wasn't sure, but there was an engraving running through the golden amulet.

She pressed a button, and the lid popped out. Inside was a timer counting down.

"Two days?" She asked herself. Suddenly, something about a ghost went past her head. However, her trail of thought was disrupted when the door unexpectedly opened. "CLARA!"

Clara quickly hid the timer in her pocket.

"Doctor, I'm furious…. Whoa, what happened to you?" The Doctor's face was blackened and some of his hair was singed.

"Thank god." He briskly walked over to her and held her hands. "I am so sorry for before. I really had to… you were in danger." His blue eyes proved that what he was talking about was the truth.

The anger inside of Clara melted away. "That's okay. Just don't let it happen again." She warned. "But you didn't answer my question. What happened to you?"

"Just… things. Right, you wanted to travel. Let me have a shower first and we'll go travelling, okay? I have just a place we could go to." He yelled down the corridor as he headed to the showers.

The Doctor locked himself in the showers and sank down. Whatever happened in the future was because of him. He had to go to the future and set it right… without killing Clara or Kate. This was going to be hard.

OoOoOoOoOoOoO

UNIT Base

"I… I don't understand." McGillop looked at Kate in confusion.

"Twenty seven kidney failures in the last 12 hours. I don't think this is a coincidence." Kate frowned. "Set up a quarantine, and place everyone who was involved with the incident in it."

"B..bbut ma'am. includes you." McGillop stuttered.

"I know." She placed her hands on his shoulder. "Don't worry. I promise everything will be fine." She gave him a reassuring smile.

"Is that like… oh, never mind." McGillop bit his lip to stop himself.

"Like what?" Kate's smile disappeared. McGillop cursed on the inside.

"L..llike that car crash. You told me everything was going to be fine. Everything wasn't fine. Osgood never came back. My friends… they all died, and I was just placed in a position higher than I deserved. I didn't even have time to grieve, because of everything I suddenly had to do. I still have no idea what happened." McGillop was almost in tears.

Kate stood there stunned. She had no idea how much it had hurt him. She handed him a USB stick, which had 'confidential' engraved on it.

"McGillop, I am so sorry I lied to you. It wasn't my decision. The decision was made by the directors above me. But that still doesn't excuse myself for not telling you. I guess I didn't want to think about what had happened that day. It was a dark day for us all. This contains all the files you need to know about what happened that day. I am so… so sorry for your loss." She gave him a sincere look.

McGillop looked at Kate gratefully in tears.

"Thank you, ma'am."