The Doctor looked around him and understood that he had lands on Deva Loka.
" Ah Missy, Missy, you're beginning to pollute Song's spirit. " He sighed. " I would have been able to find a much worse destination … Let's see … Where can they be? River has to be in The Library. But them … Where can they be? And with my TARDIS! "
He looked around him. The most important was to make sure that everybody was well. He received a signal from The Library on his screwdriver; River was reprogrammed without incident. He teleported then at madam Vastra's place. He saw them waking up and slowly taking back consciousness.
" Your child tried to kill us. " Spat Vastra.
" No I assure you, she is not in her normal state, don't be mad at her. " The Doctor answered them. " You're fine, it's all that matters. "

" If we see again this small human being, I will take care of it. " Said Strax.
The Doctor had a low and sad look. After some small hours, everything had returned to the normal. They prepared a new infusion to communicate again all together, as Doctor left looking in the heart of Big Ben for antenna researcher whom he hid in anticipation of this kind of event. His fine body based itself in the black night when he put himself in a corner not to fall asleep on the floor. They found themselves all in a common dream.
" The last time when we did that was just before your regeneration on Tranzalore. " Say River by taking the hand of the Doctor.
" I know. " He answered her always worried.
" We have to find a solution and fast. "

" I agree with Madam Vastra, Song cannot stay outside the program so for a long time. "

" The program? " Asked for Jenny.
" Yes, Song arises from the same program as River … The problem is the physical reality of Song. "

" What do you mean? "

" We studied a lot the question with River: so that a program comes to the life, it has to regenerate by means of a former body, and inevitably a Time Lord's regeneration. "

" The former body maybe a Dalek's one, because Missy made Song on Skaro, but the regenerative energy of the body of a Dalek was too low so that Song could be created from that. "

" Why a Dalek would have Time Lord's regenerative power? " Asked Vastra.
" I gave it to them to push them to the self-destruction, in brief, the problem stays that the regenerative energy is Missy's. "

"I don't understand, can't we simply kill the old man?" Questioned Strax.

"There's the problem: Missy is giving her life to Song. It's as if she had become human again, except that her watch this time is Song."

"Though we are her essence, Missy is the contingency which allowed Song to live. And she is as much our child as her now."

"I see. The life of Song is in fact Missy's."

"Yes, that is why she protects her: the consciousness of Missy gains ground on Song's, and so, Song protects Missy because the transfer is not ended. The consciousness of Missy shall prevent her from destroying what keeps her alive. The Master always has acts so as to survive whatever he costs it."

"Isn't there a way so that Song returns to the computer?" Asked for Jenny.

"She would have to sacrifice her life voluntarily. And we cannot ask for it, for two reasons, first she is our child second, the spirit of Missy won't let her die; there is no probability that it happens." Answered river.

"Let me take care of this!"

"Stax, it is out of the question to kill their child." Protested Jenny.

"Doctor, what does represents this threat?" Asked Vastra.

"If Missy corrupts totally Song, she will have a new ally. And I know that none of us will be rather powerful to stop her; she arises from us three. I tried to keep her with me but Missy always got her back ."

"And doesn't it have any other impact on the Mistress?"

"At the moment it is only a transfer of consciousness and influence. Missy doesn't seem to understand what is happening… Their two spirits are nevertheless connected and she knows it because she uses Song's. She will ask herself certainly the question when she will lose slowly her body."

"Don't you have a leverage?"

"What would a monster like this still care of?" Spat River.

"I think I know something… Missy's TARDIS, she wanted that I repair it for her; if I manage to activate it so that it returns towards its owner, I can find them."

"Doctor you are brilliant."

" Ain't I all the Time?"

" Oh shut up."

"Not a chance."
He took out his sonic sunglasses and went out of the common dream. He got back the vortex manipulator and calculated thanks to his antenna, the way to the last place where Missy's TARDIS might emit. After a few minutes he found finally for what he looked. He teleported and found himself in front of the temporal machine. He caressed the box and opened with great difficulty the door. He threw himself inside; the work could begin.