(PROSE: Engines of War C6/C10) AA

In response, the cannon-wielding Dalek powered up its weapon. An aura of intense, ruby-coloured light flickered to life at the end of the barrel. There was a sudden, massive discharge as the weapon spat a stream of pink light, which engulfed four of the people, warping around them as they screamed and tried to back away.
The remaining prisoners staggered out of the way, clearly terrified as they looked on upon their own likely fate.
The four victims writhed in obvious agony, as the pink light appeared to seep into their bodies, pouring into their open mouths, their eyes, permeating through their skin. Then, as if their flesh were simply unable to contain so much aw energy, they blossomed, their forms dissolving, the pink light flickering brightly before dispersing and fading away like wisps of trailing smoke.
Cinder staggered back from the window feeling nauseous. She put her hand to her brow. She could tell that something was badly wrong, put she couldn't put her finger on what it was. She stared at the Doctor, put her hand on his arm as if to steady herself. 'What just happened?' she said. 'I know something awful has just happened, but what was it?'
She glanced back at the courtyard, where the Daleks were surveying the six prisoners they had brought out into the courtyard a few minutes earlier.
The Doctor stepped away from the window and, taking hold of Cinder's forearm, led her away too.
'It's a temporal weapon,' he said. 'A dematerialisation gun. The Daleks have developed a new template, a new paradigm, which has the power to eradicate a person from history.'
'How can you tell?' said Cinder. 'How do you know just by looking at it?'
The Doctor narrowed his eyes. 'Didn't you see it? Didn't you see what it just did to those four people?'
Cinder shook herself free from his grip. She went back to the window. No, there were six people there, just as there had been before. 'Four people?' she said. 'There are six of them down there.' Even as she said it, though, she knew something was awry. She could feel it, nagging away at her. She was missing something. Couldn't she even trust her own mind any more?
'It's the weapon, Cinder. That's what's doing it,' said the Doctor. 'That cannon—it can erase a person's timeline from history, removing every trace of them, as if they never even existed.

[...]

A weapon that not only killed someone, but rewrote history as if they'd never even been born? It was the most awful thing she'd ever heard. The sheer violence of it—to not only take a life, but to undo every action, every thought, every emotion ever enacted or experienced by that person... it had to be the most evil device ever conceived. She wiped tears from her eyes, remembering the grief, if not the people.

—Chapter 6

[...]

'This is taken from one of their new paradigms. I've seen what it does, watched as it rewrote time and totally eradicated four human beings from history.'

—Chapter 10