The Doctor used his sonic screwdriver on the door, locking the burned salvage workers out. He looked through the porthole in the door, watching the charred figures that were once Tricky and Gregor claw at the door with misshapen fingers. Beside him, Clara leaned her back against the door, panting, and as he turned away she looked up at him, before following his line of sight.

"The engine room. The heart of the TARDIS" the Doctor said, stepping away from the large metal door. Clara followed him, and he grabbed her hand as they ran.

The Doctor burst through the door and stopped abruptly, windmilling his arms to stop himself falling off the edge of the cliff. He heard Clara scream and then yell "we're outside!"

"No, we're still in the TARDIS" The Doctor corrected her, gazing down at the drop before him.

"There's no way across" Clara said.

"No, OK. You're right" the Doctor replied, still looking down.

"So what do we do? Time for a plan, do you have a plan?" Clara asked him desperately.

"Well... no. No plan, sorry" The Doctor said, waving his finger in the air in thought before turning to his companion.

"If you don't have a plan, we're dead!" Clara cried.

"Yes, we are," the Doctor panted "so just tell me."

"Tell you what?" Clara asked, slightly confused.

"Well there's no point now, we're about to die," the Doctor said, gesturing to the cliff edge, "so just tell me who you are."

"You know who I am." Clara said, now obviously confused.

"No, I don't! I look at you every single day, and I don't understand a thing about you. Why do I keep running into you?" The Doctor looked at her, somewhat menacingly, walking away from Clara.

"Doctor, you invited me – you said..."

"Before that." The Doctor said, interrupting her. "I met you at the Dalek Asylum. There was a girl in a shipwreck, and she died saving my life. And she was you."

"She really wasn't." Clara interrupted, but the Doctor continued.

"Victorian London. There was a governess who was really a barmaid, and we fought the Great Intelligence together, she died, and it was my fault – and she was you!" The Doctor yelled, his voice getting progressively louder during his rant.

"You're scaring me." Clara whimpered, backing away from him.

"What are you, eh? A trick, a trap?" The Doctor yelled into her face.

"I don't know what you're talking about!" Clara cried, taking another step backwards. She flailed her arms, teetering on the edge of the long drop. Her eyes widened, and the Doctor stepped forward, reaching for her frantically; wrapping his arms around her as she clung to him.

"All right. All right" he puffed, burying his face in her shoulder. He had nearly lost her, his Clara, nearly caused her to fall to her death. Again.

The Doctor pulled away from the still panting Clara and looked at her incredulously.

"You really don't, do you?" He asked rhetorically.

"I think I'm more scared of you right now than anything else on that TARDIS." Clara said, her voice shaking, as she stepped further away from him.

"You're just Clara, aren't you?" The Doctor said his face splitting into a big grin. He poked her in the forehead before twiddling her nose and pinching her cheeks, chuckling as he did so. Clara was still looking at him worriedly, so he scooped her up into a hug, hearing her let out a quick breath in surprise.

"OK. I don't know what the hell this is all about, but the hug is really nice." Clara said, smiling slightly, sounding much more like her normal self.

The Doctor scrubbed at the central column of his time machine, smiling when he saw his companion enter the room and make her way towards him, her hair damp and a TARDIS blue towel draped over one shoulder. She leaned onto the console, and the Doctor slapped her on the head with his cloth before tweaking a few of the TARDIS's switches.

"I feel exhausted. I feel..."

"We've had two days crammed into the space of one." The Doctor finished, stopping his fiddling and walking behind Clara to the other side of the console, hitting her on the backside with his cloth as he went.

Clara seemed unfazed: "Why would you say that?" she asked, turning to him.

"I don't know. I say stuff. Ignore me." The Doctor pulled another few levers, and heard Clara start to walk towards the stairs. He straightened up, and asked "Do you feel safe?"

"Of course" Clara replied, her voice suggesting that this was something he should have already known.

"Give me a number out of ten. Ten being whoo-hoo, one being aarrrggh!" the Doctor spun around to Clara, waving his arms in the air to show the numbers as he said them.

"You're being weird." Clara told him, taking a step down the stairs.

"I need to know if you feel safe. I need to know..." the Doctor said, stepping towards her, "...you're not afraid"

"Of?"

"The future. Running away with a spaceman in a box. Anything could happen to you." He said looking down at her.

Clara raised her eyebrows "That's what I'm counting on." Clara looked away from his eyes to stare at the console. "Push the button."

The Doctor watched Clara walk away smiling; knowing that if she had remembered what had happened in the past few hours she would not be feeling this way. But she had forgotten, and she wasn't scared of him. And he was going to do everything he could to keep it that way. A small smile etched itslef onto his face, as he stared at her retreating back, before he turned back to the console, throwing his cloth into the air; and, taking Clara's advice, heaved down the lever.