"And," said the Doctor "I suppose the final exhibit is me?"
He turned round to see where the voice came from and froze in horror. On the steps, where the TARDIS had landed, stood Clara staring unblinkingly in space. She spoke again:
"Don't try to think of way out. Unless you comply with the rules, we kill the girl."
The Doctor felt a lump in his throat. "You're not Clara."
"Doctor, we both know that attempting to string out your life anymore, with obvious facts, won't get you anywhere."
"Look, before my instantaneous and fast approaching death, it would be nice to know why someone (or possibly more than one person in the same body) who wrote a document explicitly implying that I am basically their hero, and spent aeons building up a collection of objects from my life would want to kill me (or at least render me unconscious for an infinite period of time so that people from all over the universe can come and look at me in an exhibition)?" The Doctor felt a teensy bit pleased with himself as he figured that he had possibly just improvised the longest question in the universe.
The entity possessing Clara looked slightly puzzled. "So, you want to know why we want to kill you."
"Yeah," replied the Doctor.
"Well" said Clara "When we found out you existed, we spent a long time studying your adventures. And it was only a matter of years before someone noticed our work. Unfortunately, that someone was the time police. And apparently, you have to have a license to look into events in time that don't make sense – we didn't. So we were punished in the only way possible that meant we couldn't breathe a word to anyone, separated from our bodies, doomed to float through time and space as beings of consciousness alone. We managed to draw other beings her and found we could posses them, unfortunately the only being that can hold any other consciousness for a sustained period of time is the body of a time lord, so we drew your adversaries here in the hope that you would notice. And now you have. "
The Doctor fished for something to say. He knew what they said was true and he knew that if they did possess him then the universe would crumble. He didn't know what to do and it was happening already, they were crossing from Clara's mind to his. There was only one way he could possibly think of. Perhaps if he knocked himself unconscious, he could reason with them inside his head. It was his only chance.
He could see Clara waking up on the other side of the room. He shouted to here in hope that she could hear him.
"Hit me Clara!"
She ran towards him, smashing her arm into his head; and the world went black.
