Children of Gallifrey

"Explain! Explain!" The Dalek screamed, eye stalk spinning. Scarlet grinned and leaned against the blue police box.
"Silly Dalek. Time travel is for Time Lords. And there's only one left now." Scarlet glanced towards the other side of the TARDIS where her Doctor should have been standing.
"What is happening?" The Dalek demanded.
"Emotion. That's what. No point in trying to stop it. This gun takes away any and all barricades between emotions." Scarlet spun the thing on her finger proudly. "Made it myself." She added.
"Stop this! Stop this or be exterminated!" The Dalek threatened.
"You feel fear now. And know that fear is all that's coming for you. Because you killed my Doctor and now you've got a new oncoming storm. Except I'm not afraid to destroy you. And I have no mercy."
"You would make a good Dalek."