"White noise off the telly. We've all heard it. A few years ago, Doctor Skarosa, our founder, did something unexpected. He played that noise through a translation matrix of his own devising. This is a recording of what he heard." It had been easy enough to plant the idea and means to do it into his mind and it was making her cover story- well, lack of one she supposes- a lot more believable.
Humans, they'll believe anything.
"So what?" Seriously, they don't need to know the history of the place! Is the human really going to go on about everything but what they asked?
"Over time, Doctor Skarosa became convinced these were the voices of the recently departed. He believed it was a telepathic communication from the dead." The only telepathic communication that had been going on had been the delusions Missy kept putting in his tiny little brain.
"Why? Was he an idiot?" Yes, yes he was. A fool with too much money and a lack of sanity is still a fool.
Missy allows herself a small chuckle as she remembers killing the man- was she rather happy to be rid of him.
"So, an idiot then." Yes, humans do tend to be. Everyone knows that white noise from the telly is really The Beast trying to reach out to new victims- part of why it became so unpopular in later centuries.
"What I'm about to play you will change your life and not for the better. These are the three words which caused Doctor Skarosa to set up institutes, like this one, all over the world, to protect the dead. If you'd rather not hear these words, there's still time." She swears she can hear the Doctor roll his eyes though the audio feed. Dramatic and stupid- her Doctor hates it when people who aren't him do that.
"Can you just hurry up, please, or I'll hit you with my shoe." Missy wouldn't complain if he did- in fact she might endorse it.
"There is one simple, horrible possibility that has never occurred to anyone throughout human history." Oh, of course it didn't, not one single person in history ever thought it. Hmm, maybe Missy had been spending too much time with humans. Sarcasm wasn't exactly on the syllabus in Arcadia.
"The dead remain conscious. The dead are fully aware of everything that is happening to them." She was definitely going to get rid of this one- call it her duty to prune the truly gullible and stupid from the human race.
"Fakery. All of it. It's a con, it's a racket!" Yes, the whole thing is a con but, oh, her dear Doctor didn't know the extent yet!
"I promise you this is not a con." And she was the Nestene Consciousness.
"What's that beeping?" Ah, yes. Missy had quite forgotten the puppy was there.
"Never mind about beeping. Who cares about beeping? The dead are dead. They're not talking to you out of your television sets. They're just gone!" The Mistress remembers the feeling of killing, of destroying as many of those vermin as she could. Somehow it doesn't manage to get rid of the pain.
She claps and her creations stand.
"And all these poor souls down there in these tanks, I'm sorry, but they're just dead and they're not coming back." The Mistress wishes the Doctor would shut up as she watches all the cybermen rise.
Maybe she could create some device- something to bring her back. Surely there must be something?
Her gaze falls on the piece around her wrist. She could even test it out later on soldier boy to be sure there would be no damage.
"This isn't possible. The dead don't come back." But the Mistress would make sure her dead could.
"It was him. It was his voice." It almost tastes sour, the idea that Missy might be making the pup happy by trying to grant her own wish.