(Y/n) felt as if she had been punched in the gut. Her vision was blurry and there was an annoying ringing in her ears which did nothing for her pounding head. If it weren't for the Master's tight hold on her waist, she would have collapsed to the floor.

"What the hell was that!?"

"Short range teleport. Terribly nasty." The Master grinned. (Y/n) pulled out of his grasp and stumbled away from him. It was only when the haze cleared away from her eyes was she able to tell where they were. They were back in O's shack. It looked exactly the same as it did before, but the wall of computers had been replaced by a glowing red console. It was his Tardis.

"Do you mind telling my why you pulled me out of my jet?" Baton suddenly spoke up. Where did he come from? The Master's expression told that he had forgotten he was there. The conversed for a few moments before Barton was teleported away.

"Now to deal with you." The Master walked towards her. She backed away from him until she bumped in a wall.

"Why did you bring me here? What's going to happen to my friends? The Doctor?" You left them to die!" She sucked in a breath when the Master caged her in with his body. His hands landed on the wall on either side of her head.

"Is that the thanks I get for saving your life? Your friends are the least of your problems. And as for the Doctor, why do you care what happens to her? She's never seemed to care that much about you." As much as she hated to admit it, he was right. Why did she care? He grabbed her arms. The mark on her arm pulsed against his hand as she bit back a scream.

"Get off me!" (Y/n) resisted his attempts to drag her away from the wall.

"Stop fighting! I'm trying to get you to sit down before you keel over!" He shouted in frustration. Come to mention it, (Y/n) did not feel well at all. She didn't protest as he led her over to an armchair and sat her down.

"What are you doing?" She asked as he began to peel off her blazer.

"I need to see it." The blazer was thrown somewhere behind him and his hands hovered over her covered arm. (Y/n) watched as he seemed to hesitate before rolling up the sleeve of her left arm. He gasped in wonderment at the sight of it. The fire in his eyes mirrored the blazing pain she felt. (Y/n)'s breath caught in her throat as his cool fingers made contact with her heated skin. They both watched in awe as the black ink came to life with a golden hue. The intertwined circles began to shift and melt into one another. (Y/n)'s eyes widened when she could read what was now written there. Realisation of what was happening caused tears to meander down her cheeks. She readied herself to speak what she had been dreaming to say since she was old enough to understand what the marks meant. The Master pressed a finger to her lips silencing her before she could utter a single syllable.

"You have no idea how long I have waited for you." The Master whispered. "And I am so sorry." His forehead came to rest on hers. (Y/n) gazed into his eyes and saw the warmth that was there when he was pretending to be O, but there was also something else. A deep rooted sadness.

"Why are you sorry?" She was surprised as the Master didn't seem the type to apologise.

"Because the bond forming between us is killing you." He tore himself from her and stormed over to the console and kicked it. "Why did you have to be such a weak ape? Out of all the species in the universe, you just had to be human." He spat out. He went back over to her as if something had just occurred to him and forced up the sleeve on her right arm. His jaw clenched. "Not only weak, but also unlucky."

"You know whose name this is?"

"Oh, come on, (Y/n)! I expected more from you. Are you as stupid as you are weak?" All tenderness that was shown to her only moment ago was now gone. (Y/n) forced her aching mind to think. It was if someone had chucked a bucket of cold water over her. It all made sense. Why she acted so differently around her. How she distanced herself from her. All in an effort to not get too close.

"The Doctor."

The Master hissed at the name. He tried to hide, but she saw. His hand briefly went to his right arm.

"Show me your arms." She demanded. The Master looked at her in disbelief before anger took it's place.

"What did you just say?"

"You heard me. Show. Me. Your. Arms."

The Master gritted his teeth. "I don't want to." Even though he tried to hide, there was a vulnerability in his voice.

With some effort, she stood and walked over to stand in front of him. "Please." It was as if a war was going on behind his eyes. His blazer dropped to the floor. (Y/n) watched his expression as she reached for his right arm which lay limp at his side. She pulled back the sleeve and couldn't help but smile. Her name was written neatly on the inside of his arm. It was glowing with the same light as hers. She found herself lifting it to her lips. The Master's eyes fell shut at the contact. She brought his arm back down and entwined their fingers together. His eyes opened when he felt her fingers brush against his right arm.

"Show me."

The Master left go of her hand and pulled up the sleeve. The same mark that covered her right arm was engraved into his skin. The small amount of energy she had managed to scrape together was spent as her legs gave way. The Master's arms went around her as they fell together.