The Doctor frowned somberly. "Does it matter?"
The Master glared at The Doctor angrily. "You chose her over me and now she's not even here. Of course it matters!"
"But..." The Doctor tried to reason. "It hurts to remember."
"I don't care!" The Master stated. "I'm glad it hurts! I hope you feel a fraction of how I felt! I want to see you hurting, wallowing in pain! Now tell me what happened or else...I'll have one of these humans killed!"
Morrissey gasped. "But you said we wouldn't kill any-"
"I said kill one of the humans!" The Master fired back, shooting a glare at Morrissey.
"Alright!" The Doctor finally gave in with a sigh. "I'll tell you."
The Master looked at The Doctor with a sinister smirk. "I'm glad. Now tell. Every single detail."
The Doctor sighed. "One day...Rose and I were captured by the Sontarans. Apparently after ending the Time War, the galaxy had been calling me the most feared war hero in the universe. And you know how the Sontarans feel when it comes to war. It's like a sport to them. They love it. They considered it rude to not be invited to what they dubbed 'the greatest war in the history of time and space'. They decided in order to make up for it, they would wage a war against the Earth and force me to lead the Earth into battle. I refused and tried to stop them from waging war of any kind with anyone. Against her will, I made Rose go home. I had the TARDIS send Rose back to Earth. I had a feeling that there was no way I could make it off of the Sontaran ship alive. I doubted I'd even be able to regenerate after facing them. But being stubborn...stubborn, stubborn Rose..." He said shaking his head, grinning slightly and remembering his time with Rose. "...she tried to configure the coordinates to get back to me and somehow...she stared right into the heart of the TARDIS. Absorbing it's energy, she bended fragments of reality by destroying the entire Sontaran ship and bringing me back onto the TARDIS."
The Master couldn't help but give a slight chuckle. "How ironic...The Doctor is the killer of both The Time Lord and Dalek races while his lover single handedly killed off the Sontarans. Truly a fair match made in Heaven." He said sarcastically.
The Doctor rolled his eyes and groaned angrily. "Anyway, when I found out what she had done...I just knew all that TARDIS energy would kill her. The TARDIS energy cannot mesh well with human DNA so with all my breathe, I absorbed it out of her and into me. Granted, it killed me and made me regenerate, turning into this handsome devil..." He said pointing at himself, forcing a smile onto his face. "...but it was worth it just to save her. After that, we went on a few more adventures together. Little did I know that there was still a bit of Time Lord DNA in her blood stream. It made her part human...part Time Lord."
The Master's eyes lit up. "There is no such thing. That's impossible."
The Doctor nodded. "It is impossible. There never has been a part human part Time Lord because there can't be. It was slowly killing her every waking moment until finally, one day..." The Doctor gulped hard and tried to hold back his tears. "...one day her brain waves shut down and she...died. And it was all my fault. She absorbed that Time Lord energy trying to save me. In fact, if I never even brought her on board, she would still be living a happy care free life. Free from aliens. Free from madness but no...I just had to bring her onboard because I was smitten with her at first sight. As you said...I had a crush and that crush got her killed." He looked like he was on the verge of tears, but he tried his best to fight the urge by gritting his teeth. "That's why I never travelled with anyone after Rose. That's why she's not here with us. In a sense, I killed Rose Tyler and there is no one here who can convince me otherwise." He looked up at The Master, who looked at The Doctor with a face filled with sorrow. "Everything I touch burns. Everything I love dies." The Doctor admitted to himself as a single tear fell down his face.
The Master walked up to him, giving a sympathetic frown, and wiped the tear away. "Now take him to his post." The Master ordered the Cyberman, pulling The Doctor with the other prisoners. The Doctor was so distraught, he didn't even put up a fight. All the prisoner's gathered in front of the machine, except for Georgia who Morrissey had a tight grip on. Just to torture Tennant, Morrissey made Georgia stand right in front of her husband so she could watch him be in pain. There were two pods by the machine. A Cyberman got inside one. The other Cybermen and Daleks surrounded the machines as well. Energy will be extracted from them as well and when all the energy is taken, they'd be shut down permanently. The Master walked over to a nearby lever, but before he pulled it, he glanced at The Doctor one last time. He could clearly see that the good Doctor was in such a defeated state that he didn't care if he died in the past, present, or future. Exactly how The Master felt when The Doctor left him. The Master sighed seeing his former friend in such a crushed state, but after remembering how he felt when The Doctor left him, how it felt being dropped in that pit, and being held captive on Sarn for a year only fueled his anger, prompting him and willing him on to pull the lever.
The moment he pulled the lever, all the prisoners groaned in pain as so much energy started to leave their bodies. The Daleks and Cybermen began to pulsate frantically as the machine took their energy, getting closer and closer to shutting down. After a few minutes, the machine was half way to it's full capacity...
...until suddenly all the lights shut off. The room was pitch black. There were a few quiet rumblings as The Master screamed "The hell was that?!" Then, the lights flickered back on and the machine stopped as everyone looked up to see...
...that Matt Smith and The Doctor were free from their shackles and in between them stood a smiling woman with curly, frizzled hair in her mid-30's with a vortex manipulator on her wrist. Everyone looked confused as she fearlessly grinned at The Master.
"Bye, sweetie." She winked as she pressed down on the vortex manipulator and suddenly the three disappeared.
Flash forward to 2013 London at night time where the three appeared suddenly. The woman smiled at Matt and The Doctor, who both looked at her curiously. "Where are we?" Asked Matt.
She chuckled to herself. "I know it's dark out here, but even you should recognize that we're in front of your friend Karen's house. That is if I put in the right coordinates, did I? This isn't my vortex manipulator. I had to improvise, trying to save my vortex manipulator's energy for the right moment."
Matt looked at the house in front of them and nodded. "Yeah, this is her house. Now who are you?"
"My name...is River Song." She said with a confident smile.
Matt's jaw just dropped in shock, but The Doctor squinted his eyes at the woman in confusion. "What the hell is a River Song?"
