Rose, stunned, threw herself onto the floor by the console and sat staring at the floor. The Doctor, appearing to ignore her, darted around pressing buttons as though his life depended on it. Eventually she heard a familiar grating noise, and they were leaving. Only then did the Doctor calm down a little and sit down next to her.
"You okay?" Rose took hold of the offered hand and moved closer. The Doctor saw she was shivering, and wrapped his jacket around her. She didn't say anything in reply, so he carried on, "It's alright. You're just shocked. I'm sorry…I didn't know we were going to end up somewhere like that."
"Never mind me. You looked scared to death."
"I was." An idea occurred to him and, taking off the jacket to wrap it around Rose, he jumped up again, playing with the screwdriver and something that looked like a round USB-type thing on the console. Seconds later, a bleep sounded, and Rose turned to watch as symbols began flashing across a screen. The Doctor's mouth fell open in disbelief.
"What is it?"
"It's impossible, that's what. Completely impossible." Rose got up to look at the symbols, but they refused to translate.
"What is it?" she repeated. "You're scaring me!"
"The walls," began the Doctor, waving a hand in the direction of the screen, as though reading the symbols out to her, "were made of a rock that's only found on one planet. One planet, in the whole universe, and it's that one, and we're buried on it…which is completely impossible!" He smacked the edge of the console with the flat of his hand and walked off, running his hands through his hair in frustration. When he turned back to Rose, he looked ready to cry.
"What do you mean, impossible? When you said that place didn't exist, what did you mean?"
"I mean, that planet doesn't exist. It hasn't existed for years and years." He flopped into the captain's chair, burying his face in hands, determined not to start crying in front of Rose.
It didn't last long.
She padded over to him, still clutching the jacket round her shoulders, and took his hands away. Placing a kiss on his forehead, she wiped tears away with her thumb and climbed up next to him.
"What's wrong? You don't have to tell me if you don't want to, but maybe I can help."
"You can't. Nobody can. I couldn't help them…"
"What planet were we on?"
"We weren't! It doesn't exist!" the Doctor yelled, more for his own benefit than Rose's.
"But it must do. We landed on it."
"It's gone. Destroyed. Dead. Disappeared, vanished out of the whole of time and space, and we can't have landed on it, because it isn't there!"
"How do you know?" The Doctor looked up at Rose, meeting her concerned gaze.
"Because I pushed the button that did it." Without a word, he got down from the seat and walked over to the console.
A few flicks later, they'd landed somewhere else, and they were walking out, and Rose didn't say anymore. There was nothing more to say.