The Doctor opened the door to Yvonne's office and rolled his eyes, stepping in with Rose following.
"Could you not make our job easy and just let us shut you down?" The Doctor asked, making sure that he shut and locked the door behind them, stopping any security Yvonne might call from getting in.
"Well that wouldn't make me a very good business woman would it?" Yvonne replied, casting dark looks at Rose who was staring in awe at the injuries she'd caused the evil woman.
"No, but why fight the inevitable?" The Doctor stuffed his hands in his pockets, sitting in the chair in front of Yvonne's desk and propping his feet up on it.
"I can see we're going to go round in circles here, Doctor," Yvonne clasped her hands together, leaning forward. "So why don't you just leave with your little-"
"If you call her anything but Rose I will make your life a misery," the Doctor warned his tone dangerous. Rose stood behind him, a hand on his shoulder, squeezing reassuringly.
"Why does she mean so much to you?" Yvonne asked curiously. "You've always travelled with companions but none of them meant as much to you as Rose. What's different about her?"
"Not that it's any of your business," the Doctor growled. "But she's the most fantastic human being I've ever met. The complete opposite of you."
Rose smiled to herself, turning slightly pink. Yvonne glared at her again before smiling forcedly at the Doctor.
"You should know how dangerous that is Doctor," Yvonne continued. "Loving someone that much, and having a family with them…"
She tutted.
"You should know better," she said quietly. "You've already lost your home once. Aren't you afraid that you'll destroy it again?"
Rose couldn't believe how horrid Yvonne was being and if it wasn't for the Doctor's hand on hers she would've been tempted to shut the woman up. The Doctor didn't answer her straight away. He was contemplating, trying to decide how to approach the situation when something occurred to him.
"Who did you lose?" He asked suddenly. Yvonne visibly paled.
"What?" She said too quickly to sound convincing.
"You lost someone," the Doctor said frowning slightly. "Only someone who's been through what I have could talk about it that way."
Yvonne's gaze faltered and she stood up, wandering over to the window, looking out at the view.
"If you tell me I may be able to help," the Doctor said quietly standing up and following her. Rose watched the pair of them deciding she was better off staying in the background.
"You can't help me Doctor," Yvonne said sounding almost human. "He's not even dead. I'm just such a terrible mother."
The Doctor looked out the window for a moment following Yvonne's gaze.
"No one's a perfect parent," he said gently. "Looks at me and Rose. You know the kind of life we lead and we've got to juggle that with family life. It's not easy."
Yvonne looked at him and smiled wryly.
"You're kind Doctor," Yvonne whispered. "After everything I've done you still try to see the good side of me. You can keep looking but you won't find it. Heart of black, that's me."
The Doctor laughed then.
"Oh come on," he said. "No one is truly evil, just mislead. Who's your son, maybe we can talk to him, get him to see that you're not totally bad."
"Charlie McKay," Yvonne replied sadly. "Even changed his name because he doesn't want people to know that I'm his mother."
The Doctor blinked for a moment, slightly stunned.
"Jack's boyfriend?" he mouthed at Rose and she nodded.
"Yvonne," the Doctor paused. "Shut down Torchwood. Prove that you're not all bad."
Yvonne looked at him, hands behind her back and suddenly laughed, sending shivers down Rose's spine.
"I can't believe you swallowed that sob story Doctor," Yvonne said stepping towards him and staring him straight in the eye.
Rose moved round the desk slowly so as not to attract Yvonne's attention and began to open the security files, destroying what she didn't need. She was looking for the right delete button that would get rid of all the files Torchwood owned.
"What makes you think I swallowed it?" The Doctor asked just as coldly. "No second chances, that's what sort of a man I am."
Yvonne opened her mouth to say something else but Rose got in their first. She'd found what she was looking for, now all she needed was the Sonic Screwdriver to stop Yvonne from reversing the process.
"Doctor!" She said and he chucked it to her. Yvonne looked from one to the other unsure of what exactly had just happened. When she saw Rose finally send the command she turned slowly back to the Doctor glaring at him.
"Don't ever use what I did to my home planet against me again," the Doctor threatened as Rose stood beside him again, taking his hand.
The pair of them turned walking towards the door, leaving Yvonne fuming. As they wandered down the corridor they both knew that though Torchwood was dealt with, they still had a lot of work to do.