A/N: This is the last chapter in the Twissy Collection. Thank you so much for being a wonderful audience, and if you want to request any fanfictions I'll be happy to write them. Thanks again! - L x

During Dark Water/Death in Heaven

Missy didn't want to speak to him, but in a way all she wanted to do was tell him how much she loved him. The Doctor just stared. Who was this woman? She seemed to know everything about him, but he couldn't place her face anywhere. Revenge was the only thing on her mind; why else would she be threatening to kill him with a cyberarmy? Would any of his companions want to seek revenge on him? Rose, Martha, Donna perhaps, but, well, that was a long story. And she said she was a Time Lor- Lady. They were all on Gallifrey, frozen in time, well, all except one. The Master, but he was dead. Though this did sound like something he would do. 

"You know the key strategic weakness of the human race", she lulled, her curly, brunette hair curling around her face. She placed her hands on his shoulders and turned him around slightly so St. Paul's Cathedral was in his line of sight. It loomed over them with a dark shadow forming a moat around it. "The dead outnumber the living". Her Scottish accent was strong, making her words sound like lyrics, and her lilt like a melody. 

"Who are you?" The Doctor asked, trying to turn, but held in place by her strong grasp. His eyebrows were furrowed into a confused frown, as he continued to try and place her face. 

"Oh, you know who I am", she smoothly said.  "I'm Missy". It sounded so right to her. Missy... She was rather surprised the Doctor hadn't figured out who she was by now. I mean, it wasn't like she had made the connection hard to find. Missy = Mistress, that's the only thing he had to work out. 

"Who's Missy?" he enquired, getting slightly worried as he started to eliminate who she could be. The only Time Lords who would want to seek revenge against him were the Deca. And most of them were dead by now, slaughtered in the massacre of the Time War. 

"Please, try to keep up". Was this it? Was she really going to reveal her identity this way? Well, no time like the present.  "Short for Mistress. Well, I couldn't very well keep calling myself the Master, now could I?". She released him from her grasp, putting on a fake surprised face just to add to the dramatics. He backed away, horrified. She was the Master? This was his Koschei, his best friend, now trying to kill him. Well, that seemed to be their only itinerary nowadays. 

"Koschei?"

"The penny drops, my dear". 

"Wh-Why are you doing this?"

"Because you left me Doctor, not once, not twice, but too many times to count. And it's time you knew how it felt". 

"No", he said bluntly. "No, stop this. Stop this now". 

"I'm fed up of orders Theta. I'm fed up of being someone's pet", she spat. 

"Then just drop this. This is what they want you to do, this is what they engineered you to do".

"It was never them Theta. It was always you". 

"Then let me make it up to you. Drop this; travel the universe with me". 

"Bit late, love. I wanted that thousands of years ago, not now". 

"Koschei, really. If I could trade all my tomorrows for just one yesterday to not leave you behind I would", he whispered. She wasn't speaking, so he just decided to say everything on his mind, because, let's face it, he had waited over a thousand years to say it. 

...

"I-I love you"